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Source: https://src.fedoraproject.org/rpms/grub2.git#b1411716293a399086585ec89428879fd1130e7b
This commit is contained in:
DistroBaker 2021-02-22 12:38:05 +01:00
parent bf10e723fb
commit 7f3bf26ea4
29 changed files with 16869 additions and 17 deletions
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32
0092-20_linux_xen-load-xen-or-multiboot-2-modules-as-need.patch
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@ -5,27 +5,43 @@ Subject: [PATCH] 20_linux_xen: load xen or multiboot{,2} modules as needed.
Signed-off-by: Peter Jones <pjones@redhat.com> Signed-off-by: Peter Jones <pjones@redhat.com>
--- ---
util/grub.d/20_linux_xen.in | 3 +++ util/grub.d/20_linux_xen.in | 5 +++++
1 file changed, 3 insertions(+) 1 file changed, 5 insertions(+)
diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
index 1519ec692fe..9aa23bc7d51 100644 index 1519ec692fe..b6e4608db6e 100644
--- a/util/grub.d/20_linux_xen.in --- a/util/grub.d/20_linux_xen.in
+++ b/util/grub.d/20_linux_xen.in +++ b/util/grub.d/20_linux_xen.in
@@ -136,6 +136,8 @@ linux_entry () @@ -136,6 +136,7 @@ linux_entry ()
else else
xen_rm_opts="no-real-mode edd=off" xen_rm_opts="no-real-mode edd=off"
fi fi
+ insmod ${module_loader} + insmod ${xen_module}
+ insmod ${xen_loader}
${xen_loader} ${rel_xen_dirname}/${xen_basename} placeholder ${xen_args} \${xen_rm_opts} ${xen_loader} ${rel_xen_dirname}/${xen_basename} placeholder ${xen_args} \${xen_rm_opts}
echo '$(echo "$lmessage" | grub_quote)' echo '$(echo "$lmessage" | grub_quote)'
${module_loader} ${rel_dirname}/${basename} placeholder root=${linux_root_device_thisversion} ro ${args} ${module_loader} ${rel_dirname}/${basename} placeholder root=${linux_root_device_thisversion} ro ${args}
@@ -149,6 +151,7 @@ EOF @@ -149,6 +150,7 @@ EOF
done done
sed "s/^/$submenu_indentation/" << EOF sed "s/^/$submenu_indentation/" << EOF
echo '$(echo "$message" | grub_quote)' echo '$(echo "$message" | grub_quote)'
+ insmod ${module_loader} + insmod ${xen_module}
${module_loader} --nounzip $(echo $initrd_path) ${module_loader} --nounzip $(echo $initrd_path)
EOF EOF
fi fi
@@ -225,13 +227,16 @@ while [ "x${xen_list}" != "x" ] ; do
echo " submenu '$(gettext_printf "Xen hypervisor, version %s" "${xen_version}" | grub_quote)' \$menuentry_id_option 'xen-hypervisor-$xen_version-$boot_device_id' {"
fi
if ($grub_file --is-arm64-efi $current_xen); then
+ xen_module="xen_boot"
xen_loader="xen_hypervisor"
module_loader="xen_module"
else
if ($grub_file --is-x86-multiboot2 $current_xen); then
+ xen_module="multiboot2"
xen_loader="multiboot2"
module_loader="module2"
else
+ xen_module="multiboot"
xen_loader="multiboot"
module_loader="module"
fi

251
0280-Add-at_keyboard_fallback_set-var-to-force-the-set-ma.patch Normal file
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@ -0,0 +1,251 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Renaud=20M=C3=A9trich?= <rmetrich@redhat.com>
Date: Fri, 18 Dec 2020 15:39:26 +0100
Subject: [PATCH] Add 'at_keyboard_fallback_set' var to force the set manually
This seems required with HP DL380p Gen 8 systems.
Indeed, with this system, we can see the following sequence:
1. controller is queried to get current configuration (returns 0x30 which is quite standard)
2. controller is queried to get the current keyboard set in used, using code 0xf0 (first part)
3. controller answers with 0xfa which means "ACK" (== ok)
4. then we send "0" to tell "we want to know which set your are supporting"
5. controller answers with 0xfa ("ACK")
6. controller should then give us 1, 2, 3 or 0x43, 0x41, 0x3f, but here it gives us 0xfe which means "NACK"
Since there seems no way to determine the current set, and in fact the
controller expects set2 to be used, we need to rely on an environment
variable.
Everything has been tested on this system: using 0xFE (resend command),
making sure we wait for ACK in the 2 steps "write_mode", etc.
Below is litterature I used to come up with "there is no other
solution":
- https://wiki.osdev.org/%228042%22_PS/2_Controller
- http://www-ug.eecg.toronto.edu/msl/nios_devices/datasheets/PS2%20Keyboard%20Protocol.htm
- http://www.s100computers.com/My%20System%20Pages/MSDOS%20Board/PC%20Keyboard.pdf
---
grub-core/term/at_keyboard.c | 127 ++++++++++++++++++++++++++++++++++---------
1 file changed, 101 insertions(+), 26 deletions(-)
diff --git a/grub-core/term/at_keyboard.c b/grub-core/term/at_keyboard.c
index 69d99b61df5..e7d51b249ad 100644
--- a/grub-core/term/at_keyboard.c
+++ b/grub-core/term/at_keyboard.c
@@ -31,6 +31,7 @@ GRUB_MOD_LICENSE ("GPLv3+");
static grub_uint8_t grub_keyboard_controller_orig;
static grub_uint8_t grub_keyboard_orig_set;
struct grub_ps2_state ps2_state;
+static int fallback_set;
static int ping_sent;
@@ -76,6 +77,8 @@ at_command (grub_uint8_t data)
break;
return 0;
}
+ if (i == GRUB_AT_TRIES)
+ grub_dprintf ("atkeyb", "at_command() timed out! (stopped after %d tries)\n", i);
return (i != GRUB_AT_TRIES);
}
@@ -105,6 +108,21 @@ grub_keyboard_controller_read (void)
#endif
+static int
+resend_last_result (void)
+{
+ grub_uint8_t ret;
+ keyboard_controller_wait_until_ready ();
+ grub_dprintf ("atkeyb", "resend_last_result: sending 0xfe\n");
+ grub_outb (0xfe, KEYBOARD_REG_DATA);
+ ret = wait_ack ();
+ grub_dprintf ("atkeyb", "resend_last_result: wait_ack() returned 0x%x\n", ret);
+ keyboard_controller_wait_until_ready ();
+ ret = grub_inb (KEYBOARD_REG_DATA);
+ grub_dprintf ("atkeyb", "resend_last_result: read 0x%x from controller\n", ret);
+ return ret;
+}
+
static int
write_mode (int mode)
{
@@ -113,11 +131,17 @@ write_mode (int mode)
{
grub_uint8_t ack;
keyboard_controller_wait_until_ready ();
+ grub_dprintf ("atkeyb", "write_mode: sending 0xf0\n");
grub_outb (0xf0, KEYBOARD_REG_DATA);
+ ack = wait_ack ();
+ grub_dprintf ("atkeyb", "write_mode: wait_ack() returned 0x%x\n", ack);
+ if (ack != GRUB_AT_ACK)
+ continue;
keyboard_controller_wait_until_ready ();
+ grub_dprintf ("atkeyb", "write_mode: sending mode %d\n", mode);
grub_outb (mode, KEYBOARD_REG_DATA);
- keyboard_controller_wait_until_ready ();
ack = wait_ack ();
+ grub_dprintf ("atkeyb", "write_mode: wait_ack() returned 0x%x\n", ack);
if (ack == GRUB_AT_NACK)
continue;
if (ack == GRUB_AT_ACK)
@@ -125,6 +149,9 @@ write_mode (int mode)
return 0;
}
+ if (i == GRUB_AT_TRIES)
+ grub_dprintf ("atkeyb", "write_mode() timed out! (stopped after %d tries)\n", i);
+
return (i != GRUB_AT_TRIES);
}
@@ -132,31 +159,66 @@ static int
query_mode (void)
{
grub_uint8_t ret;
+ grub_uint64_t endtime;
+ unsigned i;
int e;
+ char *envvar;
- e = write_mode (0);
- if (!e) {
- grub_dprintf("atkeyb", "query_mode: write_mode(0) failed\n");
- return 0;
- }
+ for (i = 0; i < GRUB_AT_TRIES; i++) {
+ grub_dprintf ("atkeyb", "query_mode: sending command to controller\n");
+ e = write_mode (0);
+ if (!e) {
+ grub_dprintf ("atkeyb", "query_mode: write_mode(0) failed\n");
+ return 0;
+ }
- do {
- keyboard_controller_wait_until_ready ();
- ret = grub_inb (KEYBOARD_REG_DATA);
- } while (ret == GRUB_AT_ACK);
- /* QEMU translates the set even in no-translate mode. */
- if (ret == 0x43 || ret == 1) {
- grub_dprintf("atkeyb", "query_mode: returning 1 (ret=0x%x)\n", ret);
- return 1;
- }
- if (ret == 0x41 || ret == 2) {
- grub_dprintf("atkeyb", "query_mode: returning 2 (ret=0x%x)\n", ret);
- return 2;
+ endtime = grub_get_time_ms () + 20;
+ do {
+ keyboard_controller_wait_until_ready ();
+ ret = grub_inb (KEYBOARD_REG_DATA);
+ grub_dprintf ("atkeyb", "query_mode/loop: read 0x%x from controller\n", ret);
+ } while ((ret == GRUB_AT_ACK || ret == GRUB_AT_NACK) && grub_get_time_ms () < endtime);
+ if (ret == 0xfe) {
+ grub_dprintf ("atkeyb", "query_mode: asking controller to resend last result\n");
+ ret = resend_last_result();
+ grub_dprintf ("atkeyb", "query_mode: read 0x%x from controller\n", ret);
+ }
+ /* QEMU translates the set even in no-translate mode. */
+ if (ret == 0x43 || ret == 1) {
+ grub_dprintf ("atkeyb", "query_mode: controller returned 0x%x, returning 1\n", ret);
+ return 1;
+ }
+ if (ret == 0x41 || ret == 2) {
+ grub_dprintf ("atkeyb", "query_mode: controller returned 0x%x, returning 2\n", ret);
+ return 2;
+ }
+ if (ret == 0x3f || ret == 3) {
+ grub_dprintf ("atkeyb", "query_mode: controller returned 0x%x, returning 3\n", ret);
+ return 3;
+ }
+ grub_dprintf ("atkeyb", "query_mode: controller returned unexpected value 0x%x, retrying\n", ret);
}
- if (ret == 0x3f || ret == 3) {
- grub_dprintf("atkeyb", "query_mode: returning 3 (ret=0x%x)\n", ret);
- return 3;
+
+ /*
+ * Falling here means we tried querying and the controller returned something
+ * we don't understand, try to use 'at_keyboard_fallback_set' if it exists,
+ * otherwise return 0.
+ */
+ envvar = grub_env_get ("at_keyboard_fallback_set");
+ if (envvar) {
+ fallback_set = grub_strtoul (envvar, 0, 10);
+ if ((grub_errno) || (fallback_set < 1) || (fallback_set > 3)) {
+ grub_dprintf ("atkeyb", "WARNING: ignoring unexpected value '%s' for '%s' variable\n",
+ envvar, "at_keyboard_fallback_set");
+ fallback_set = 0;
+ } else {
+ grub_dprintf ("atkeyb", "query_mode: '%s' specified in environment, returning %d\n",
+ "at_keyboard_fallback_set", fallback_set);
+ }
+ return fallback_set;
}
+ grub_dprintf ("atkeyb", "WARNING: no '%s' specified in environment, returning 0\n",
+ "at_keyboard_fallback_set");
return 0;
}
@@ -165,14 +227,25 @@ set_scancodes (void)
{
/* You must have visited computer museum. Keyboard without scancode set
knowledge. Assume XT. */
- if (!grub_keyboard_orig_set)
- {
- grub_dprintf ("atkeyb", "No sets support assumed\n");
- ps2_state.current_set = 1;
+ if (!grub_keyboard_orig_set) {
+ if (fallback_set) {
+ grub_dprintf ("atkeyb", "No sets support assumed but set forced to %d\n", fallback_set);
+ ps2_state.current_set = fallback_set;
return;
}
+ grub_dprintf ("atkeyb", "No sets support assumed, forcing to set 1\n");
+ ps2_state.current_set = 1;
+ return;
+ }
#if !USE_SCANCODE_SET
+ if (fallback_set) {
+ grub_dprintf ("atkeyb", "queried set is %d but set forced to %d\n",
+ grub_keyboard_orig_set, fallback_set);
+ ps2_state.current_set = fallback_set;
+ return;
+ }
+
if ((grub_keyboard_controller_orig & KEYBOARD_AT_TRANSLATE) == KEYBOARD_AT_TRANSLATE) {
grub_dprintf ("atkeyb", "queried set is %d but keyboard in Translate mode, so actually in set 1\n", grub_keyboard_orig_set);
ps2_state.current_set = 1;
@@ -229,6 +302,7 @@ grub_at_keyboard_is_alive (void)
if (KEYBOARD_COMMAND_ISREADY (grub_inb (KEYBOARD_REG_STATUS)))
{
+ grub_dprintf ("atkeyb", "grub_at_keyboard_is_alive: controller mode before self-test: 0x%x\n", grub_keyboard_controller_read());
grub_outb (0xaa, KEYBOARD_REG_STATUS);
ping_sent = 1;
}
@@ -261,6 +335,7 @@ grub_at_keyboard_getkey (struct grub_term_input *term __attribute__ ((unused)))
static void
grub_keyboard_controller_init (void)
{
+ grub_dprintf ("atkeyb", "initializing the controller\n");
ps2_state.at_keyboard_status = 0;
/* Drain input buffer. */
while (1)
@@ -282,6 +357,7 @@ grub_keyboard_controller_init (void)
grub_keyboard_controller_orig = grub_keyboard_controller_read ();
grub_dprintf ("atkeyb", "grub_keyboard_controller_orig = 0x%x\n", grub_keyboard_controller_orig);
grub_keyboard_orig_set = query_mode ();
+ grub_dprintf ("atkeyb", "grub_keyboard_orig_set = %d\n", grub_keyboard_orig_set);
#endif
set_scancodes ();
keyboard_controller_led (ps2_state.led_status);
@@ -329,7 +405,6 @@ grub_at_restore_hw (void)
return GRUB_ERR_NONE;
}
-
static struct grub_term_input grub_at_keyboard_term =
{
.name = "at_keyboard",

41
0281-verifiers-Fix-calling-uninitialized-function-pointer.patch Normal file
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@ -0,0 +1,41 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Michael Chang <mchang@suse.com>
Date: Tue, 18 Feb 2020 18:08:18 +0800
Subject: [PATCH] verifiers: Fix calling uninitialized function pointer
The necessary check for NULL before use of function ver->close is not
taking place in the failure path. This patch simply adds the missing
check and fixes the problem that GRUB hangs indefinitely after booting
rogue image without valid signature if secure boot is turned on.
Now it displays like this for booting rogue UEFI image:
error: bad shim signature
error: you need to load the kernel first
Press any key to continue...
and then you can go back to boot menu by pressing any key or after a few
seconds expired.
Signed-off-by: Michael Chang <mchang@suse.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/commands/verifiers.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/grub-core/commands/verifiers.c b/grub-core/commands/verifiers.c
index 0dde4818267..7b9297cd345 100644
--- a/grub-core/commands/verifiers.c
+++ b/grub-core/commands/verifiers.c
@@ -196,7 +196,8 @@ grub_verifiers_open (grub_file_t io, enum grub_file_type type)
return ret;
fail:
- ver->close (context);
+ if (ver->close)
+ ver->close (context);
fail_noclose:
verified_free (verified);
grub_free (ret);

52
0282-ieee1275-claim-up-to-256MB-memory.patch Normal file
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@ -0,0 +1,52 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Wed, 28 Oct 2020 11:44:29 +1100
Subject: [PATCH] ieee1275: claim up to 256MB memory
If we are verifying large kernels, we need more that 32MB. (Many distro
kernels are quite large, and debug kernels can be even bigger!)
We originally went with 512MB: qemu pseries gives you all the memory a
32-bit number can handle, so there was lots left over to place a linux image
and initrd.
Here's what we said then:
| This is possibly not the way we want to go with for upstream as it breaks
| booting on systems with <= 512MB. We're working on a more upstream-friendly
| solution and will post it shortly. However, for an end-user or packager with
| a higher minimum memory requirement, this will work fine.
However, we've since discovered that (at least on one P8 test system), PFW
doesn't expose all of the memory allocated to the LPAR: it looks like it just
exposes 512MB - at least unless we mess with the CHRP note section.
Therefore, if we try to claim 512MB in grub, things _do not_ work when we try
to load linux. As a compromise, and again we'd like a better upstream solution,
go for 256MB. This is at least enough to verify distro kernels.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/kern/ieee1275/init.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index 937c1bc44cb..d84fba44d10 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -52,15 +52,13 @@
#ifdef __i386__
#define HEAP_MAX_SIZE (unsigned long) (64 * 1024 * 1024)
#else
-#define HEAP_MAX_SIZE (unsigned long) (32 * 1024 * 1024)
+#define HEAP_MAX_SIZE (unsigned long) (256 * 1024 * 1024)
#endif
-/* If possible, we will avoid claiming heap above this address, because it
- seems to cause relocation problems with OSes that link at 4 MiB */
#ifdef __i386__
#define HEAP_MAX_ADDR (unsigned long) (64 * 1024 * 1024)
#else
-#define HEAP_MAX_ADDR (unsigned long) (32 * 1024 * 1024)
+#define HEAP_MAX_ADDR (unsigned long) (256 * 1024 * 1024)
#endif
extern char _end[];

309
0283-Add-suport-for-signing-grub-with-an-appended-signatu.patch Normal file
View File

@ -0,0 +1,309 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Rashmica Gupta <rashmica.g@gmail.com>
Date: Thu, 11 Jun 2020 11:26:23 +1000
Subject: [PATCH] Add suport for signing grub with an appended signature
Add infrastructure to allow firmware to verify the integrity of grub
by use of a Linux-kernel-module-style appended signature. We initially
target powerpc-ieee1275, but the code should be extensible to other
platforms.
Usually these signatures are appended to a file without modifying the
ELF file itself. (This is what the 'sign-file' tool does, for example.)
The verifier loads the signed file from the file system and looks at the
end of the file for the appended signature. However, on powerpc-ieee1275
platforms, the bootloader is often stored directly in the PReP partition
as raw bytes without a file-system. This makes determining the location
of an appended signature more difficult.
To address this, we add a new ELF note.
The name field of shall be the string "Appended-Signature", zero-padded
to 4 byte alignment. The type field shall be 0x41536967 (the ASCII values
for the string "ASig"). It must be the final section in the ELF binary.
The description shall contain the appended signature structure as defined
by the Linux kernel. The description will also be padded to be a multiple
of 4 bytes. The padding shall be added before the appended signature
structure (not at the end) so that the final bytes of a signed ELF file
are the appended signature magic.
A subsequent patch documents how to create a grub core.img validly signed
under this scheme.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com>
---
You can experiment with this code with a patched version of SLOF
that verifies these signatures. You can find one at:
https://github.com/daxtens/SLOF
I will be proposing this for inclusion in a future Power Architecture
Platform Reference (PAPR).
---
util/grub-install-common.c | 16 +++++++++++++---
util/grub-mkimage.c | 11 +++++++++++
util/grub-mkimagexx.c | 39 ++++++++++++++++++++++++++++++++++++++-
util/mkimage.c | 10 +++++-----
include/grub/util/install.h | 8 ++++++--
include/grub/util/mkimage.h | 4 ++--
6 files changed, 75 insertions(+), 13 deletions(-)
diff --git a/util/grub-install-common.c b/util/grub-install-common.c
index 0295d40f5e4..e2be0a3e305 100644
--- a/util/grub-install-common.c
+++ b/util/grub-install-common.c
@@ -308,10 +308,12 @@ handle_install_list (struct install_list *il, const char *val,
static char **pubkeys;
static size_t npubkeys;
static grub_compression_t compression;
+static size_t appsig_size;
int
grub_install_parse (int key, char *arg)
{
+ const char *end;
switch (key)
{
case 'C':
@@ -400,6 +402,12 @@ grub_install_parse (int key, char *arg)
grub_util_error (_("Unrecognized compression `%s'"), arg);
case GRUB_INSTALL_OPTIONS_GRUB_MKIMAGE:
return 1;
+ case GRUB_INSTALL_OPTIONS_APPENDED_SIGNATURE_SIZE:
+ grub_errno = 0;
+ appsig_size = grub_strtol(arg, &end, 10);
+ if (grub_errno)
+ return 0;
+ return 1;
default:
return 0;
}
@@ -498,10 +506,12 @@ grub_install_make_image_wrap_file (const char *dir, const char *prefix,
grub_util_info ("grub-mkimage --directory '%s' --prefix '%s'"
" --output '%s' "
" --dtb '%s' "
- "--format '%s' --compression '%s' %s %s\n",
+ "--format '%s' --compression '%s' "
+ "--appended-signature-size %zu %s %s\n",
dir, prefix,
outname, dtb ? : "", mkimage_target,
- compnames[compression], note ? "--note" : "", s);
+ compnames[compression], appsig_size,
+ note ? "--note" : "", s);
free (s);
tgt = grub_install_get_image_target (mkimage_target);
@@ -511,7 +521,7 @@ grub_install_make_image_wrap_file (const char *dir, const char *prefix,
grub_install_generate_image (dir, prefix, fp, outname,
modules.entries, memdisk_path,
pubkeys, npubkeys, config_path, tgt,
- note, compression, dtb);
+ note, appsig_size, compression, dtb);
while (dc--)
grub_install_pop_module ();
}
diff --git a/util/grub-mkimage.c b/util/grub-mkimage.c
index 912564e3622..c1e07c70dc7 100644
--- a/util/grub-mkimage.c
+++ b/util/grub-mkimage.c
@@ -82,6 +82,7 @@ static struct argp_option options[] = {
{"format", 'O', N_("FORMAT"), 0, 0, 0},
{"compression", 'C', "(xz|none|auto)", 0, N_("choose the compression to use for core image"), 0},
{"verbose", 'v', 0, 0, N_("print verbose messages."), 0},
+ {"appended-signature-size", 's', N_("SIZE"), 0, N_("Add a note segment reserving SIZE bytes for an appended signature"), 0},
{ 0, 0, 0, 0, 0, 0 }
};
@@ -124,6 +125,7 @@ struct arguments
char *font;
char *config;
int note;
+ size_t appsig_size;
const struct grub_install_image_target_desc *image_target;
grub_compression_t comp;
};
@@ -134,6 +136,7 @@ argp_parser (int key, char *arg, struct argp_state *state)
/* Get the input argument from argp_parse, which we
know is a pointer to our arguments structure. */
struct arguments *arguments = state->input;
+ const char* end;
switch (key)
{
@@ -166,6 +169,13 @@ argp_parser (int key, char *arg, struct argp_state *state)
arguments->note = 1;
break;
+ case 's':
+ grub_errno = 0;
+ arguments->appsig_size = grub_strtol(arg, &end, 10);
+ if (grub_errno)
+ return 0;
+ break;
+
case 'm':
if (arguments->memdisk)
free (arguments->memdisk);
@@ -309,6 +319,7 @@ main (int argc, char *argv[])
arguments.memdisk, arguments.pubkeys,
arguments.npubkeys, arguments.config,
arguments.image_target, arguments.note,
+ arguments.appsig_size,
arguments.comp, arguments.dtb);
if (grub_util_file_sync (fp) < 0)
diff --git a/util/grub-mkimagexx.c b/util/grub-mkimagexx.c
index 52bc9c848d9..bd2e2e9a52a 100644
--- a/util/grub-mkimagexx.c
+++ b/util/grub-mkimagexx.c
@@ -84,6 +84,15 @@ struct grub_ieee1275_note
struct grub_ieee1275_note_desc descriptor;
};
+#define GRUB_APPENDED_SIGNATURE_NOTE_NAME "Appended-Signature"
+#define GRUB_APPENDED_SIGNATURE_NOTE_TYPE 0x41536967 /* "ASig" */
+
+struct grub_appended_signature_note
+{
+ Elf32_Nhdr header;
+ char name[ALIGN_UP(sizeof (GRUB_APPENDED_SIGNATURE_NOTE_NAME), 4)];
+};
+
#define GRUB_XEN_NOTE_NAME "Xen"
struct fixup_block_list
@@ -207,7 +216,7 @@ grub_arm_reloc_jump24 (grub_uint32_t *target, Elf32_Addr sym_addr)
void
SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc *image_target,
- int note, char **core_img, size_t *core_size,
+ int note, size_t appsig_size, char **core_img, size_t *core_size,
Elf_Addr target_addr,
struct grub_mkimage_layout *layout)
{
@@ -221,6 +230,12 @@ SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc
int shnum = 4;
int string_size = sizeof (".text") + sizeof ("mods") + 1;
+ if (appsig_size)
+ {
+ phnum++;
+ footer_size += ALIGN_UP(sizeof (struct grub_appended_signature_note) + appsig_size, 4);
+ }
+
if (image_target->id != IMAGE_LOONGSON_ELF)
phnum += 2;
@@ -484,6 +499,28 @@ SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc
phdr->p_offset = grub_host_to_target32 (header_size + program_size);
}
+ if (appsig_size) {
+ int note_size = ALIGN_UP(sizeof (struct grub_appended_signature_note) + appsig_size, 4);
+ struct grub_appended_signature_note *note_ptr = (struct grub_appended_signature_note *)
+ (elf_img + program_size + header_size + (note ? sizeof (struct grub_ieee1275_note) : 0));
+
+ note_ptr->header.n_namesz = grub_host_to_target32 (sizeof (GRUB_APPENDED_SIGNATURE_NOTE_NAME));
+ /* needs to sit at the end, so we round this up and sign some zero padding */
+ note_ptr->header.n_descsz = grub_host_to_target32 (ALIGN_UP(appsig_size, 4));
+ note_ptr->header.n_type = grub_host_to_target32 (GRUB_APPENDED_SIGNATURE_NOTE_TYPE);
+ strcpy (note_ptr->name, GRUB_APPENDED_SIGNATURE_NOTE_NAME);
+
+ phdr++;
+ phdr->p_type = grub_host_to_target32 (PT_NOTE);
+ phdr->p_flags = grub_host_to_target32 (PF_R);
+ phdr->p_align = grub_host_to_target32 (image_target->voidp_sizeof);
+ phdr->p_vaddr = 0;
+ phdr->p_paddr = 0;
+ phdr->p_filesz = grub_host_to_target32 (note_size);
+ phdr->p_memsz = 0;
+ phdr->p_offset = grub_host_to_target32 (header_size + program_size + (note ? sizeof (struct grub_ieee1275_note) : 0));
+ }
+
{
char *str_start = (elf_img + sizeof (*ehdr) + phnum * sizeof (*phdr)
+ shnum * sizeof (*shdr));
diff --git a/util/mkimage.c b/util/mkimage.c
index 37d6249f16b..bd06968decc 100644
--- a/util/mkimage.c
+++ b/util/mkimage.c
@@ -822,7 +822,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
char *memdisk_path, char **pubkey_paths,
size_t npubkeys, char *config_path,
const struct grub_install_image_target_desc *image_target,
- int note, grub_compression_t comp, const char *dtb_path)
+ int note, size_t appsig_size, grub_compression_t comp, const char *dtb_path)
{
char *kernel_img, *core_img;
size_t total_module_size, core_size;
@@ -1742,11 +1742,11 @@ grub_install_generate_image (const char *dir, const char *prefix,
else
target_addr = image_target->link_addr;
if (image_target->voidp_sizeof == 4)
- grub_mkimage_generate_elf32 (image_target, note, &core_img, &core_size,
- target_addr, &layout);
+ grub_mkimage_generate_elf32 (image_target, note, appsig_size, &core_img,
+ &core_size, target_addr, &layout);
else
- grub_mkimage_generate_elf64 (image_target, note, &core_img, &core_size,
- target_addr, &layout);
+ grub_mkimage_generate_elf64 (image_target, note, appsig_size, &core_img,
+ &core_size, target_addr, &layout);
}
break;
}
diff --git a/include/grub/util/install.h b/include/grub/util/install.h
index 2631b107451..eb1b83b6d94 100644
--- a/include/grub/util/install.h
+++ b/include/grub/util/install.h
@@ -63,6 +63,9 @@
/* TRANSLATORS: "embed" is a verb (command description). "*/ \
{ "pubkey", 'k', N_("FILE"), 0, \
N_("embed FILE as public key for signature checking"), 0}, \
+ { "appended-signature-size", GRUB_INSTALL_OPTIONS_APPENDED_SIGNATURE_SIZE,\
+ "SIZE", 0, N_("Add a note segment reserving SIZE bytes for an appended signature"), \
+ 1}, \
{ "verbose", 'v', 0, 0, \
N_("print verbose messages."), 1 }
@@ -122,7 +125,8 @@ enum grub_install_options {
GRUB_INSTALL_OPTIONS_THEMES_DIRECTORY,
GRUB_INSTALL_OPTIONS_GRUB_MKIMAGE,
GRUB_INSTALL_OPTIONS_INSTALL_CORE_COMPRESS,
- GRUB_INSTALL_OPTIONS_DTB
+ GRUB_INSTALL_OPTIONS_DTB,
+ GRUB_INSTALL_OPTIONS_APPENDED_SIGNATURE_SIZE
};
extern char *grub_install_source_directory;
@@ -182,7 +186,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
size_t npubkeys,
char *config_path,
const struct grub_install_image_target_desc *image_target,
- int note,
+ int note, size_t appsig_size,
grub_compression_t comp, const char *dtb_file);
const struct grub_install_image_target_desc *
diff --git a/include/grub/util/mkimage.h b/include/grub/util/mkimage.h
index ba9f568f692..2000d6fbdf1 100644
--- a/include/grub/util/mkimage.h
+++ b/include/grub/util/mkimage.h
@@ -50,12 +50,12 @@ grub_mkimage_load_image64 (const char *kernel_path,
const struct grub_install_image_target_desc *image_target);
void
grub_mkimage_generate_elf32 (const struct grub_install_image_target_desc *image_target,
- int note, char **core_img, size_t *core_size,
+ int note, size_t appsig_size, char **core_img, size_t *core_size,
Elf32_Addr target_addr,
struct grub_mkimage_layout *layout);
void
grub_mkimage_generate_elf64 (const struct grub_install_image_target_desc *image_target,
- int note, char **core_img, size_t *core_size,
+ int note, size_t appsig_size, char **core_img, size_t *core_size,
Elf64_Addr target_addr,
struct grub_mkimage_layout *layout);

59
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@ -0,0 +1,59 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Sat, 15 Aug 2020 02:00:57 +1000
Subject: [PATCH] docs/grub: Document signing grub under UEFI
Before adding information about how grub is signed with an appended
signature scheme, it's worth adding some information about how it
can currently be signed for UEFI.
(adjusted from upstream - s/grub/grub2/ in the docs)
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
docs/grub.texi | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/docs/grub.texi b/docs/grub.texi
index 085b9974cc5..abb1d0fae54 100644
--- a/docs/grub.texi
+++ b/docs/grub.texi
@@ -5645,6 +5645,7 @@ environment variables and commands are listed in the same order.
@menu
* Authentication and authorisation:: Users and access control
* Using digital signatures:: Booting digitally signed code
+* Signing GRUB itself:: Ensuring the integrity of the GRUB core image
* UEFI secure boot and shim:: Booting digitally signed PE files
* Measured Boot:: Measuring boot components
@end menu
@@ -5724,7 +5725,7 @@ commands.
GRUB's @file{core.img} can optionally provide enforcement that all files
subsequently read from disk are covered by a valid digital signature.
-This document does @strong{not} cover how to ensure that your
+This section does @strong{not} cover how to ensure that your
platform's firmware (e.g., Coreboot) validates @file{core.img}.
If environment variable @code{check_signatures}
@@ -5809,6 +5810,22 @@ or BIOS) configuration to cause the machine to boot from a different
(attacker-controlled) device. GRUB is at best only one link in a
secure boot chain.
+@node Signing GRUB itself
+@section Signing GRUB itself
+
+To ensure a complete secure-boot chain, there must be a way for the code that
+loads GRUB to verify the integrity of the core image.
+
+This is ultimately platform-specific and individual platforms can define their
+own mechanisms. However, there are general-purpose mechanisms that can be used
+with GRUB.
+
+@section Signing GRUB for UEFI secure boot
+
+On UEFI platforms, @file{core.img} is a PE binary. Therefore, it can be signed
+with a tool such as @command{pesign} or @command{sbsign}. It will also be
+necessary to enrol the public key used into a relevant firmware key database.
+
@node UEFI secure boot and shim
@section UEFI secure boot and shim support

66
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@ -0,0 +1,66 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@redhat.com>
Date: Mon, 8 Feb 2021 19:17:55 +0100
Subject: [PATCH] docs/grub: Document signing grub with an appended signature
Signing grub for firmware that verifies an appended signature is a
bit fiddly. I don't want people to have to figure it out from scratch
so document it here.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
docs/grub.texi | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/docs/grub.texi b/docs/grub.texi
index abb1d0fae54..e8bfe7ee7e8 100644
--- a/docs/grub.texi
+++ b/docs/grub.texi
@@ -5826,6 +5826,47 @@ On UEFI platforms, @file{core.img} is a PE binary. Therefore, it can be signed
with a tool such as @command{pesign} or @command{sbsign}. It will also be
necessary to enrol the public key used into a relevant firmware key database.
+@section Signing GRUB with an appended signature
+
+The @file{core.img} itself can be signed with a Linux kernel module-style
+appended signature.
+
+To support IEEE1275 platforms where the boot image is often loaded directly
+from a disk partition rather than from a file system, the @file{core.img}
+can specify the size and location of the appended signature with an ELF
+note added by @command{grub-install}.
+
+An image can be signed this way using the @command{sign-file} command from
+the Linux kernel:
+
+@example
+@group
+# grub.key is your private key and certificate.der is your public key
+
+# Determine the size of the appended signature. It depends on the signing
+# certificate and the hash algorithm
+touch empty
+sign-file SHA256 grub.key certificate.der empty empty.sig
+SIG_SIZE=`stat -c '%s' empty.sig`
+rm empty empty.sig
+
+# Build a grub image with $SIG_SIZE reserved for the signature
+grub-install --appended-signature-size $SIG_SIZE --modules="..." ...
+
+# Replace the reserved size with a signature:
+# cut off the last $SIG_SIZE bytes with truncate's minus modifier
+truncate -s -$SIG_SIZE /boot/grub/powerpc-ieee1275/core.elf core.elf.unsigned
+# sign the trimmed file with an appended signature, restoring the correct size
+sign-file SHA256 grub.key certificate.der core.elf.unsigned core.elf.signed
+
+# Don't forget to install the signed image as required
+# (e.g. on powerpc-ieee1275, to the PReP partition)
+@end group
+@end example
+
+As with UEFI secure boot, it is necessary to build in the required modules,
+or sign them separately.
+
@node UEFI secure boot and shim
@section UEFI secure boot and shim support

33
0286-docs-grub-grub-install-is-no-longer-a-shell-script.patch Normal file
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@ -0,0 +1,33 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Sat, 15 Aug 2020 01:00:11 +1000
Subject: [PATCH] docs/grub: grub-install is no longer a shell script
Since commit cd46aa6cefab in 2013, grub-install hasn't been a shell
script. The para doesn't really add that much, especially since it's
the user manual, so just drop it.
(adjust docs: s/grub/grub2)
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
docs/grub.texi | 7 -------
1 file changed, 7 deletions(-)
diff --git a/docs/grub.texi b/docs/grub.texi
index e8bfe7ee7e8..2436c57f598 100644
--- a/docs/grub.texi
+++ b/docs/grub.texi
@@ -695,13 +695,6 @@ floppy instead of exposing the USB drive as a hard disk (they call it
This install doesn't conflict with standard install as long as they are in
separate directories.
-Note that @command{grub2-install} is actually just a shell script and the
-real task is done by other tools such as @command{grub2-mkimage}. Therefore,
-you may run those commands directly to install GRUB, without using
-@command{grub2-install}. Don't do that, however, unless you are very familiar
-with the internals of GRUB. Installing a boot loader on a running OS may be
-extremely dangerous.
-
On EFI systems for fixed disk install you have to mount EFI System Partition.
If you mount it at @file{/boot/efi} then you don't need any special arguments:

36
0287-docs-grub-pubkey-has-been-supported-for-some-time.patch Normal file
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@ -0,0 +1,36 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Sat, 15 Aug 2020 02:04:01 +1000
Subject: [PATCH] docs/grub: --pubkey has been supported for some time
--pubkey is supported, so we can now document it.
(adjust docs: s/grub/grub2)
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
docs/grub.texi | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/docs/grub.texi b/docs/grub.texi
index 2436c57f598..7fc2a62a4f8 100644
--- a/docs/grub.texi
+++ b/docs/grub.texi
@@ -5732,15 +5732,9 @@ verified with a public key currently trusted by GRUB
validation fails, then file @file{foo} cannot be opened. This failure
may halt or otherwise impact the boot process.
-@comment Unfortunately --pubkey is not yet supported by grub2-install,
-@comment but we should not bring up internal detail grub2-mkimage here
-@comment in the user guide (as opposed to developer's manual).
-
-@comment An initial trusted public key can be embedded within the GRUB
-@comment @file{core.img} using the @code{--pubkey} option to
-@comment @command{grub2-mkimage} (@pxref{Invoking grub2-install}). Presently it
-@comment is necessary to write a custom wrapper around @command{grub2-mkimage}
-@comment using the @code{--grub-mkimage} flag to @command{grub2-install}.
+An initial trusted public key can be embedded within the GRUB
+@file{core.img} using the @code{--pubkey} option to
+@command{grub2-install} (@pxref{Invoking grub2-install}).
GRUB uses GPG-style detached signatures (meaning that a file
@file{foo.sig} will be produced when file @file{foo} is signed), and

44
0288-dl-provide-a-fake-grub_dl_set_persistent-for-the-emu.patch Normal file
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@ -0,0 +1,44 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Thu, 30 Jul 2020 00:13:21 +1000
Subject: [PATCH] dl: provide a fake grub_dl_set_persistent for the emu target
Trying to start grub-emu with a module that calls grub_dl_set_persistent
will crash because grub-emu fakes modules and passes NULL to the module
init function.
Provide an empty function for the emu case.
Fixes: ee7808e2197c (dl: Add support for persistent modules)
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
include/grub/dl.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/include/grub/dl.h b/include/grub/dl.h
index 4fe2b524f73..177bcd67a25 100644
--- a/include/grub/dl.h
+++ b/include/grub/dl.h
@@ -243,11 +243,22 @@ grub_dl_get (const char *name)
return 0;
}
+#ifdef GRUB_MACHINE_EMU
+/*
+ * Under grub-emu, modules are faked and NULL is passed to GRUB_MOD_INIT.
+ * So we fake this out to avoid a NULL deref.
+ */
+static inline void
+grub_dl_set_persistent (grub_dl_t mod __attribute__((unused)))
+{
+}
+#else
static inline void
grub_dl_set_persistent (grub_dl_t mod)
{
mod->persistent = 1;
}
+#endif
static inline int
grub_dl_is_persistent (grub_dl_t mod)

97
0289-verifiers-provide-unsafe-module-list.patch Normal file
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@ -0,0 +1,97 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Wed, 29 Jul 2020 17:46:16 +1000
Subject: [PATCH] verifiers: provide unsafe module list
Other verifiers that implement secure boot may want to be able to
use this list and behaviour.
Upstream, this factors the list out of the shim_lock verifier.
However, that hasn't hit the RHEL8.4 tree yet, so instead
of factoring it out of that we just create it.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/commands/verifiers.c | 46 ++++++++++++++++++++++++++++++++++++++++++
include/grub/verify.h | 13 ++++++++++++
2 files changed, 59 insertions(+)
diff --git a/grub-core/commands/verifiers.c b/grub-core/commands/verifiers.c
index 7b9297cd345..4ced984cfed 100644
--- a/grub-core/commands/verifiers.c
+++ b/grub-core/commands/verifiers.c
@@ -218,6 +218,52 @@ grub_verify_string (char *str, enum grub_verify_string_type type)
return GRUB_ERR_NONE;
}
+/* List of modules which may allow for verifcation to be bypassed. */
+static const char *const disabled_mods[] = { "iorw", "memrw", "wrmsr", NULL };
+
+/*
+ * Does the module in file `io' allow for the a verifier to be bypassed?
+ *
+ * Returns 1 if so, otherwise 0.
+ */
+char
+grub_is_dangerous_module (grub_file_t io)
+{
+ char *b, *e;
+ int i;
+
+ /* Establish GRUB module name. */
+ b = grub_strrchr (io->name, '/');
+ e = grub_strrchr (io->name, '.');
+
+ b = b ? (b + 1) : io->name;
+ e = e ? e : io->name + grub_strlen (io->name);
+ e = (e > b) ? e : io->name + grub_strlen (io->name);
+
+ for (i = 0; disabled_mods[i]; i++)
+ if (!grub_strncmp (b, disabled_mods[i],
+ grub_strlen (b) - grub_strlen (e)))
+ return 1;
+ return 0;
+}
+
+/*
+ * Is there already an unsafe module in memory?
+ * Returns the name if one is loaded, otherwise NULL.
+ */
+const char *
+grub_dangerous_module_loaded (void)
+{
+ int i;
+
+ for (i = 0; disabled_mods[i]; i++)
+ if (grub_dl_get (disabled_mods[i]))
+ {
+ return disabled_mods[i];
+ }
+ return NULL;
+}
+
GRUB_MOD_INIT(verifiers)
{
grub_file_filter_register (GRUB_FILE_FILTER_VERIFY, grub_verifiers_open);
diff --git a/include/grub/verify.h b/include/grub/verify.h
index ea049143368..8c2de132051 100644
--- a/include/grub/verify.h
+++ b/include/grub/verify.h
@@ -81,4 +81,17 @@ grub_verifier_unregister (struct grub_file_verifier *ver)
grub_err_t
grub_verify_string (char *str, enum grub_verify_string_type type);
+/*
+ * Does the module in file `io' allow for the a verifier to be bypassed?
+ *
+ * Returns 1 if so, otherwise 0.
+ */
+char grub_is_dangerous_module (grub_file_t io);
+
+/*
+ * Is there already an unsafe module in memory?
+ * Returns the name if one is loaded, otherwise NULL.
+ */
+const char *grub_dangerous_module_loaded (void);
+
#endif /* ! GRUB_VERIFY_HEADER */

191
0290-pgp-factor-out-rsa_pad.patch Normal file
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@ -0,0 +1,191 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Thu, 1 Oct 2020 20:23:48 +1000
Subject: [PATCH] pgp: factor out rsa_pad
rsa_pad does the PKCS#1 v1.5 padding for the RSA signature scheme.
We want to use it in other RSA signature verification applications.
I considered and rejected putting it in lib/crypto.c. That file doesn't
currently require any MPI functions, but rsa_pad does. That's not so
much of a problem for the grub kernel and modules, but crypto.c also
gets built into all the grub utilities. So - despite the utils not
using any asymmetric ciphers - we would need to built the entire MPI
infrastructure in to them.
A better and simpler solution is just to spin rsa_pad out into its own
PKCS#1 v1.5 module.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/Makefile.core.def | 8 ++++++
grub-core/commands/pgp.c | 28 ++-------------------
grub-core/lib/pkcs1_v15.c | 59 +++++++++++++++++++++++++++++++++++++++++++++
include/grub/pkcs1_v15.h | 27 +++++++++++++++++++++
4 files changed, 96 insertions(+), 26 deletions(-)
create mode 100644 grub-core/lib/pkcs1_v15.c
create mode 100644 include/grub/pkcs1_v15.h
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index b283c502b9c..58bf113e7c1 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -2488,6 +2488,14 @@ module = {
cppflags = '$(CPPFLAGS_GCRY)';
};
+module = {
+ name = pkcs1_v15;
+ common = lib/pkcs1_v15.c;
+
+ cflags = '$(CFLAGS_GCRY) -Wno-redundant-decls -Wno-sign-compare';
+ cppflags = '$(CPPFLAGS_GCRY)';
+};
+
module = {
name = all_video;
common = lib/fake_module.c;
diff --git a/grub-core/commands/pgp.c b/grub-core/commands/pgp.c
index bbf6871fe71..2032afa4ec6 100644
--- a/grub-core/commands/pgp.c
+++ b/grub-core/commands/pgp.c
@@ -24,6 +24,7 @@
#include <grub/file.h>
#include <grub/command.h>
#include <grub/crypto.h>
+#include <grub/pkcs1_v15.h>
#include <grub/i18n.h>
#include <grub/gcrypt/gcrypt.h>
#include <grub/pubkey.h>
@@ -411,32 +412,7 @@ static int
rsa_pad (gcry_mpi_t *hmpi, grub_uint8_t *hval,
const gcry_md_spec_t *hash, struct grub_public_subkey *sk)
{
- grub_size_t tlen, emlen, fflen;
- grub_uint8_t *em, *emptr;
- unsigned nbits = gcry_mpi_get_nbits (sk->mpis[0]);
- int ret;
- tlen = hash->mdlen + hash->asnlen;
- emlen = (nbits + 7) / 8;
- if (emlen < tlen + 11)
- return 1;
-
- em = grub_malloc (emlen);
- if (!em)
- return 1;
-
- em[0] = 0x00;
- em[1] = 0x01;
- fflen = emlen - tlen - 3;
- for (emptr = em + 2; emptr < em + 2 + fflen; emptr++)
- *emptr = 0xff;
- *emptr++ = 0x00;
- grub_memcpy (emptr, hash->asnoid, hash->asnlen);
- emptr += hash->asnlen;
- grub_memcpy (emptr, hval, hash->mdlen);
-
- ret = gcry_mpi_scan (hmpi, GCRYMPI_FMT_USG, em, emlen, 0);
- grub_free (em);
- return ret;
+ return grub_crypto_rsa_pad(hmpi, hval, hash, sk->mpis[0]);
}
struct grub_pubkey_context
diff --git a/grub-core/lib/pkcs1_v15.c b/grub-core/lib/pkcs1_v15.c
new file mode 100644
index 00000000000..dbacd563d01
--- /dev/null
+++ b/grub-core/lib/pkcs1_v15.c
@@ -0,0 +1,59 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2013 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/gcrypt/gcrypt.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/*
+ * Given a hash value 'hval', of hash specification 'hash', perform
+ * the EMSA-PKCS1-v1_5 padding suitable for a key with modulus 'mod'
+ * (see RFC 8017 s 9.2) and place the result in 'hmpi'.
+ */
+gcry_err_code_t
+grub_crypto_rsa_pad (gcry_mpi_t * hmpi, grub_uint8_t * hval,
+ const gcry_md_spec_t * hash, gcry_mpi_t mod)
+{
+ grub_size_t tlen, emlen, fflen;
+ grub_uint8_t *em, *emptr;
+ unsigned nbits = gcry_mpi_get_nbits (mod);
+ int ret;
+ tlen = hash->mdlen + hash->asnlen;
+ emlen = (nbits + 7) / 8;
+ if (emlen < tlen + 11)
+ return GPG_ERR_TOO_SHORT;
+
+ em = grub_malloc (emlen);
+ if (!em)
+ return 1;
+
+ em[0] = 0x00;
+ em[1] = 0x01;
+ fflen = emlen - tlen - 3;
+ for (emptr = em + 2; emptr < em + 2 + fflen; emptr++)
+ *emptr = 0xff;
+ *emptr++ = 0x00;
+ grub_memcpy (emptr, hash->asnoid, hash->asnlen);
+ emptr += hash->asnlen;
+ grub_memcpy (emptr, hval, hash->mdlen);
+
+ ret = gcry_mpi_scan (hmpi, GCRYMPI_FMT_USG, em, emlen, 0);
+ grub_free (em);
+ return ret;
+}
diff --git a/include/grub/pkcs1_v15.h b/include/grub/pkcs1_v15.h
new file mode 100644
index 00000000000..5c338c84a15
--- /dev/null
+++ b/include/grub/pkcs1_v15.h
@@ -0,0 +1,27 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2013 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Given a hash value 'hval', of hash specification 'hash', perform
+ * the EMSA-PKCS1-v1_5 padding suitable for a key with modulus 'mod'
+ * (See RFC 8017 s 9.2)
+ */
+gcry_err_code_t
+grub_crypto_rsa_pad (gcry_mpi_t * hmpi, grub_uint8_t * hval,
+ const gcry_md_spec_t * hash, gcry_mpi_t mod);
+

71
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@ -0,0 +1,71 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Fri, 2 Oct 2020 10:49:26 +1000
Subject: [PATCH] crypto: move storage for grub_crypto_pk_* to crypto.c
The way gcry_rsa and friends (the asymmetric ciphers) are loaded for the
pgp module is a bit quirky.
include/grub/crypto.h contains:
extern struct gcry_pk_spec *grub_crypto_pk_rsa;
commands/pgp.c contains the actual storage:
struct gcry_pk_spec *grub_crypto_pk_rsa;
And the module itself saves to the storage in pgp.c:
GRUB_MOD_INIT(gcry_rsa)
{
grub_crypto_pk_rsa = &_gcry_pubkey_spec_rsa;
}
This is annoying: gcry_rsa now has a dependency on pgp!
We want to be able to bring in gcry_rsa without bringing in PGP,
so move the storage to crypto.c.
Previously, gcry_rsa depended on pgp and mpi. Now it depends on
crypto and mpi. As pgp depends on crypto, this doesn't add any new
module dependencies using the PGP verfier.
[FWIW, the story is different for the symmetric ciphers. cryptodisk
and friends (zfs encryption etc) use grub_crypto_lookup_cipher_by_name()
to get a cipher handle. That depends on grub_ciphers being populated
by people calling grub_cipher_register. import_gcry.py ensures that the
symmetric ciphers call it.]
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/commands/pgp.c | 4 ----
grub-core/lib/crypto.c | 4 ++++
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/grub-core/commands/pgp.c b/grub-core/commands/pgp.c
index 2032afa4ec6..4e0667c1cd0 100644
--- a/grub-core/commands/pgp.c
+++ b/grub-core/commands/pgp.c
@@ -147,10 +147,6 @@ const char *hashes[] = {
[0x0b] = "sha224"
};
-struct gcry_pk_spec *grub_crypto_pk_dsa;
-struct gcry_pk_spec *grub_crypto_pk_ecdsa;
-struct gcry_pk_spec *grub_crypto_pk_rsa;
-
static int
dsa_pad (gcry_mpi_t *hmpi, grub_uint8_t *hval,
const gcry_md_spec_t *hash, struct grub_public_subkey *sk);
diff --git a/grub-core/lib/crypto.c b/grub-core/lib/crypto.c
index e6c78d16d39..ff62fa30e1a 100644
--- a/grub-core/lib/crypto.c
+++ b/grub-core/lib/crypto.c
@@ -121,6 +121,10 @@ grub_md_unregister (gcry_md_spec_t *cipher)
}
}
+struct gcry_pk_spec *grub_crypto_pk_dsa;
+struct gcry_pk_spec *grub_crypto_pk_ecdsa;
+struct gcry_pk_spec *grub_crypto_pk_rsa;
+
void
grub_crypto_hash (const gcry_md_spec_t *hash, void *out, const void *in,
grub_size_t inlen)

64
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@ -0,0 +1,64 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Sat, 2 May 2020 00:27:57 +1000
Subject: [PATCH] posix_wrap: tweaks in preparation for libtasn1
- Define SIZEOF_UNSIGNED_LONG_INT, it's the same as
SIZEOF_UNSIGNED_LONG.
- Define WORD_BIT, the size in bits of an int. This is a defined
in the Single Unix Specification and in gnulib's limits.h. gnulib
assumes it's 32 bits on all our platforms, including 64 bit
platforms, so we also use that value.
- Provide strto[u]l[l] preprocessor macros that resolve to
grub_strto[u]l[l]. To avoid gcrypt redefining strtoul, we
also define HAVE_STRTOUL here.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/lib/posix_wrap/limits.h | 1 +
grub-core/lib/posix_wrap/stdlib.h | 8 ++++++++
grub-core/lib/posix_wrap/sys/types.h | 1 +
3 files changed, 10 insertions(+)
diff --git a/grub-core/lib/posix_wrap/limits.h b/grub-core/lib/posix_wrap/limits.h
index 7217138ffd6..591dbf3289d 100644
--- a/grub-core/lib/posix_wrap/limits.h
+++ b/grub-core/lib/posix_wrap/limits.h
@@ -37,5 +37,6 @@
#define LONG_MAX GRUB_LONG_MAX
#define CHAR_BIT 8
+#define WORD_BIT 32
#endif
diff --git a/grub-core/lib/posix_wrap/stdlib.h b/grub-core/lib/posix_wrap/stdlib.h
index 7a8d385e973..4634db09f29 100644
--- a/grub-core/lib/posix_wrap/stdlib.h
+++ b/grub-core/lib/posix_wrap/stdlib.h
@@ -58,4 +58,12 @@ abs (int c)
return (c >= 0) ? c : -c;
}
+#define strtol grub_strtol
+
+/* for libgcrypt */
+#define HAVE_STRTOUL
+#define strtoul grub_strtoul
+
+#define strtoull grub_strtoull
+
#endif
diff --git a/grub-core/lib/posix_wrap/sys/types.h b/grub-core/lib/posix_wrap/sys/types.h
index 854eb0122ef..f63412c8da0 100644
--- a/grub-core/lib/posix_wrap/sys/types.h
+++ b/grub-core/lib/posix_wrap/sys/types.h
@@ -51,6 +51,7 @@ typedef grub_uint8_t byte;
typedef grub_addr_t uintptr_t;
#define SIZEOF_UNSIGNED_LONG GRUB_CPU_SIZEOF_LONG
+#define SIZEOF_UNSIGNED_LONG_INT GRUB_CPU_SIZEOF_LONG
#define SIZEOF_UNSIGNED_INT 4
#define SIZEOF_UNSIGNED_LONG_LONG 8
#define SIZEOF_UNSIGNED_SHORT 2

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307
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@ -0,0 +1,307 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Fri, 1 May 2020 17:12:23 +1000
Subject: [PATCH] libtasn1: disable code not needed in grub
We don't expect to be able to write ASN.1, only read it,
so we can disable some code.
Do that with #if 0/#endif, rather than deletion. This means
that the difference between upstream and grub is smaller,
which should make updating libtasn1 easier in the future.
With these exclusions we also avoid the need for minmax.h,
which is convenient because it means we don't have to
import it from gnulib.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/lib/libtasn1/lib/coding.c | 12 ++++++++++--
grub-core/lib/libtasn1/lib/decoding.c | 2 ++
grub-core/lib/libtasn1/lib/element.c | 4 ++--
grub-core/lib/libtasn1/lib/errors.c | 3 +++
grub-core/lib/libtasn1/lib/structure.c | 10 ++++++----
include/grub/libtasn1.h | 15 +++++++++++++++
6 files changed, 38 insertions(+), 8 deletions(-)
diff --git a/grub-core/lib/libtasn1/lib/coding.c b/grub-core/lib/libtasn1/lib/coding.c
index 245ea64cf0a..52def598368 100644
--- a/grub-core/lib/libtasn1/lib/coding.c
+++ b/grub-core/lib/libtasn1/lib/coding.c
@@ -30,11 +30,11 @@
#include "parser_aux.h"
#include <gstr.h>
#include "element.h"
-#include "minmax.h"
#include <structure.h>
#define MAX_TAG_LEN 16
+#if 0
/******************************************************/
/* Function : _asn1_error_description_value_not_found */
/* Description: creates the ErrorDescription string */
@@ -58,6 +58,7 @@ _asn1_error_description_value_not_found (asn1_node node,
Estrcat (ErrorDescription, "' not found");
}
+#endif
/**
* asn1_length_der:
@@ -244,6 +245,7 @@ asn1_encode_simple_der (unsigned int etype, const unsigned char *str,
return ASN1_SUCCESS;
}
+#if 0
/******************************************************/
/* Function : _asn1_time_der */
/* Description: creates the DER coding for a TIME */
@@ -281,7 +283,7 @@ _asn1_time_der (unsigned char *str, int str_len, unsigned char *der,
return ASN1_SUCCESS;
}
-
+#endif
/*
void
@@ -520,6 +522,7 @@ asn1_bit_der (const unsigned char *str, int bit_len,
}
+#if 0
/******************************************************/
/* Function : _asn1_complete_explicit_tag */
/* Description: add the length coding to the EXPLICIT */
@@ -596,6 +599,7 @@ _asn1_complete_explicit_tag (asn1_node node, unsigned char *der,
return ASN1_SUCCESS;
}
+#endif
const tag_and_class_st _asn1_tags[] = {
[ASN1_ETYPE_GENERALSTRING] =
@@ -648,6 +652,8 @@ const tag_and_class_st _asn1_tags[] = {
unsigned int _asn1_tags_size = sizeof (_asn1_tags) / sizeof (_asn1_tags[0]);
+
+#if 0
/******************************************************/
/* Function : _asn1_insert_tag_der */
/* Description: creates the DER coding of tags of one */
@@ -1413,3 +1419,5 @@ error:
asn1_delete_structure (&node);
return err;
}
+
+#endif
\ No newline at end of file
diff --git a/grub-core/lib/libtasn1/lib/decoding.c b/grub-core/lib/libtasn1/lib/decoding.c
index ff04eb778cb..42f9a92b5d4 100644
--- a/grub-core/lib/libtasn1/lib/decoding.c
+++ b/grub-core/lib/libtasn1/lib/decoding.c
@@ -1613,6 +1613,7 @@ asn1_der_decoding (asn1_node * element, const void *ider, int ider_len,
return asn1_der_decoding2 (element, ider, &ider_len, 0, errorDescription);
}
+#if 0
/**
* asn1_der_decoding_element:
* @structure: pointer to an ASN1 structure
@@ -1643,6 +1644,7 @@ asn1_der_decoding_element (asn1_node * structure, const char *elementName,
{
return asn1_der_decoding(structure, ider, len, errorDescription);
}
+#endif
/**
* asn1_der_decoding_startEnd:
diff --git a/grub-core/lib/libtasn1/lib/element.c b/grub-core/lib/libtasn1/lib/element.c
index 997eb2725dc..539008d8e94 100644
--- a/grub-core/lib/libtasn1/lib/element.c
+++ b/grub-core/lib/libtasn1/lib/element.c
@@ -191,7 +191,7 @@ _asn1_append_sequence_set (asn1_node node, struct node_tail_cache_st *pcache)
return ASN1_SUCCESS;
}
-
+#if 0
/**
* asn1_write_value:
* @node_root: pointer to a structure
@@ -645,7 +645,7 @@ asn1_write_value (asn1_node node_root, const char *name,
return ASN1_SUCCESS;
}
-
+#endif
#define PUT_VALUE( ptr, ptr_size, data, data_size) \
*len = data_size; \
diff --git a/grub-core/lib/libtasn1/lib/errors.c b/grub-core/lib/libtasn1/lib/errors.c
index cee74daf795..42785e8622b 100644
--- a/grub-core/lib/libtasn1/lib/errors.c
+++ b/grub-core/lib/libtasn1/lib/errors.c
@@ -57,6 +57,8 @@ static const libtasn1_error_entry error_algorithms[] = {
{0, 0}
};
+
+#if 0
/**
* asn1_perror:
* @error: is an error returned by a libtasn1 function.
@@ -73,6 +75,7 @@ asn1_perror (int error)
const char *str = asn1_strerror (error);
fprintf (stderr, "LIBTASN1 ERROR: %s\n", str ? str : "(null)");
}
+#endif
/**
* asn1_strerror:
diff --git a/grub-core/lib/libtasn1/lib/structure.c b/grub-core/lib/libtasn1/lib/structure.c
index 8189c56a4c9..fcfde01a393 100644
--- a/grub-core/lib/libtasn1/lib/structure.c
+++ b/grub-core/lib/libtasn1/lib/structure.c
@@ -76,7 +76,7 @@ _asn1_find_left (asn1_node_const node)
return node->left;
}
-
+#if 0
int
_asn1_create_static_structure (asn1_node_const pointer, char *output_file_name,
char *vector_name)
@@ -155,7 +155,7 @@ _asn1_create_static_structure (asn1_node_const pointer, char *output_file_name,
return ASN1_SUCCESS;
}
-
+#endif
/**
* asn1_array2tree:
@@ -718,7 +718,7 @@ asn1_create_element (asn1_node_const definitions, const char *source_name,
return res;
}
-
+#if 0
/**
* asn1_print_structure:
* @out: pointer to the output file (e.g. stdout).
@@ -1058,7 +1058,7 @@ asn1_print_structure (FILE * out, asn1_node_const structure, const char *name,
}
}
}
-
+#endif
/**
@@ -1153,6 +1153,7 @@ asn1_find_structure_from_oid (asn1_node_const definitions, const char *oidValue)
return NULL; /* ASN1_ELEMENT_NOT_FOUND; */
}
+#if 0
/**
* asn1_copy_node:
* @dst: Destination asn1 node.
@@ -1202,6 +1203,7 @@ asn1_copy_node (asn1_node dst, const char *dst_name,
return result;
}
+#endif
/**
* asn1_dup_node:
diff --git a/include/grub/libtasn1.h b/include/grub/libtasn1.h
index 6fd7a30dc35..785eda2ae3f 100644
--- a/include/grub/libtasn1.h
+++ b/include/grub/libtasn1.h
@@ -319,6 +319,8 @@ typedef struct asn1_data_node_st asn1_data_node_st;
/* Functions definitions */
/***********************************/
+/* These functions are not used in grub and should not be referenced. */
+#if 0
extern ASN1_API int
asn1_parser2tree (const char *file,
asn1_node * definitions, char *error_desc);
@@ -327,14 +329,17 @@ extern ASN1_API int
asn1_parser2array (const char *inputFileName,
const char *outputFileName,
const char *vectorName, char *error_desc);
+#endif
extern ASN1_API int
asn1_array2tree (const asn1_static_node * array,
asn1_node * definitions, char *errorDescription);
+#if 0
extern ASN1_API void
asn1_print_structure (FILE * out, asn1_node_const structure,
const char *name, int mode);
+#endif
extern ASN1_API int
asn1_create_element (asn1_node_const definitions,
@@ -347,9 +352,11 @@ extern ASN1_API int asn1_delete_structure2 (asn1_node * structure, unsigned int
extern ASN1_API int
asn1_delete_element (asn1_node structure, const char *element_name);
+#if 0
extern ASN1_API int
asn1_write_value (asn1_node node_root, const char *name,
const void *ivalue, int len);
+#endif
extern ASN1_API int
asn1_read_value (asn1_node_const root, const char *name,
@@ -365,9 +372,11 @@ extern ASN1_API int
extern ASN1_API int
asn1_number_of_elements (asn1_node_const element, const char *name, int *num);
+#if 0
extern ASN1_API int
asn1_der_coding (asn1_node_const element, const char *name,
void *ider, int *len, char *ErrorDescription);
+#endif
extern ASN1_API int
asn1_der_decoding2 (asn1_node *element, const void *ider,
@@ -378,12 +387,14 @@ extern ASN1_API int
asn1_der_decoding (asn1_node * element, const void *ider,
int ider_len, char *errorDescription);
+#if 0
/* Do not use. Use asn1_der_decoding() instead. */
extern ASN1_API int
asn1_der_decoding_element (asn1_node * structure,
const char *elementName,
const void *ider, int len,
char *errorDescription) _ASN1_GCC_ATTR_DEPRECATED;
+#endif
extern ASN1_API int
asn1_der_decoding_startEnd (asn1_node element,
@@ -408,13 +419,17 @@ extern ASN1_API const char *asn1_find_structure_from_oid (asn1_node_const
const char
*oidValue);
+#if 0
__LIBTASN1_PURE__
extern ASN1_API const char *asn1_check_version (const char *req_version);
+#endif
__LIBTASN1_PURE__
extern ASN1_API const char *asn1_strerror (int error);
+#if 0
extern ASN1_API void asn1_perror (int error);
+#endif
#define ASN1_MAX_TAG_SIZE 4
#define ASN1_MAX_LENGTH_SIZE 9

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@ -0,0 +1,202 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Fri, 1 May 2020 20:44:29 +1000
Subject: [PATCH] libtasn1: changes for grub compatibility
Do a few things to make libtasn1 compile as part of grub:
- replace strcat. grub removed strcat so replace it with the appropriate
calls to memcpy and strlen.
- replace c_isdigit with grub_isdigit (and don't import c-ctype from
gnulib) grub_isdigit provides the same functionality as c_isdigit: it
determines if the input is an ASCII digit without regard for locale.
- replace GL_ATTRIBUTE_PURE with __attribute__((pure)) which been
supported since gcc-2.96. This avoids messing around with gnulib.
- adjust libtasn1.h: drop the ASN1_API logic, it's not needed for our
modules. Unconditionally support const and pure attributes and adjust
header paths.
- adjust header paths to "grub/libtasn1.h".
- replace a 64 bit division with a call to grub_divmod64, preventing
creation of __udivdi3 calls on 32 bit platforms.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/lib/libtasn1/lib/decoding.c | 11 ++++++-----
grub-core/lib/libtasn1/lib/element.c | 3 ++-
grub-core/lib/libtasn1/lib/gstr.c | 4 ++--
grub-core/lib/libtasn1/lib/parser_aux.c | 7 ++++---
grub-core/lib/libtasn1/lib/int.h | 4 ++--
include/grub/libtasn1.h | 26 ++++++--------------------
6 files changed, 22 insertions(+), 33 deletions(-)
diff --git a/grub-core/lib/libtasn1/lib/decoding.c b/grub-core/lib/libtasn1/lib/decoding.c
index 42f9a92b5d4..7856858b272 100644
--- a/grub-core/lib/libtasn1/lib/decoding.c
+++ b/grub-core/lib/libtasn1/lib/decoding.c
@@ -32,7 +32,8 @@
#include <element.h>
#include <limits.h>
#include <intprops.h>
-#include <c-ctype.h>
+
+#define c_isdigit grub_isdigit
#ifdef DEBUG
# define warn() fprintf(stderr, "%s: %d\n", __func__, __LINE__)
@@ -2008,8 +2009,8 @@ asn1_expand_octet_string (asn1_node_const definitions, asn1_node * element,
(p2->type & CONST_ASSIGN))
{
strcpy (name, definitions->name);
- strcat (name, ".");
- strcat (name, p2->name);
+ memcpy (name + strlen(name), ".", sizeof(" . "));
+ memcpy (name + strlen(name), p2->name, strlen(p2->name) + 1);
len = sizeof (value);
result = asn1_read_value (definitions, name, value, &len);
@@ -2026,8 +2027,8 @@ asn1_expand_octet_string (asn1_node_const definitions, asn1_node * element,
if (p2)
{
strcpy (name, definitions->name);
- strcat (name, ".");
- strcat (name, p2->name);
+ memcpy (name + strlen(name), ".", sizeof(" . "));
+ memcpy (name + strlen(name), p2->name, strlen(p2->name) + 1);
result = asn1_create_element (definitions, name, &aux);
if (result == ASN1_SUCCESS)
diff --git a/grub-core/lib/libtasn1/lib/element.c b/grub-core/lib/libtasn1/lib/element.c
index 539008d8e94..ed761ff56bd 100644
--- a/grub-core/lib/libtasn1/lib/element.c
+++ b/grub-core/lib/libtasn1/lib/element.c
@@ -30,9 +30,10 @@
#include "parser_aux.h"
#include <gstr.h>
#include "structure.h"
-#include "c-ctype.h"
#include "element.h"
+#define c_isdigit grub_isdigit
+
void
_asn1_hierarchical_name (asn1_node_const node, char *name, int name_size)
{
diff --git a/grub-core/lib/libtasn1/lib/gstr.c b/grub-core/lib/libtasn1/lib/gstr.c
index e91a3a151c0..e33875c2c7c 100644
--- a/grub-core/lib/libtasn1/lib/gstr.c
+++ b/grub-core/lib/libtasn1/lib/gstr.c
@@ -36,13 +36,13 @@ _asn1_str_cat (char *dest, size_t dest_tot_size, const char *src)
if (dest_tot_size - dest_size > str_size)
{
- strcat (dest, src);
+ memcpy (dest + dest_size, src, str_size + 1);
}
else
{
if (dest_tot_size - dest_size > 0)
{
- strncat (dest, src, (dest_tot_size - dest_size) - 1);
+ memcpy (dest + dest_size, src, (dest_tot_size - dest_size) - 1);
dest[dest_tot_size - 1] = 0;
}
}
diff --git a/grub-core/lib/libtasn1/lib/parser_aux.c b/grub-core/lib/libtasn1/lib/parser_aux.c
index d5dbbf8765d..89c9be69dc2 100644
--- a/grub-core/lib/libtasn1/lib/parser_aux.c
+++ b/grub-core/lib/libtasn1/lib/parser_aux.c
@@ -26,7 +26,8 @@
#include "gstr.h"
#include "structure.h"
#include "element.h"
-#include "c-ctype.h"
+
+#define c_isdigit grub_isdigit
char _asn1_identifierMissing[ASN1_MAX_NAME_SIZE + 1]; /* identifier name not found */
@@ -40,7 +41,7 @@ char _asn1_identifierMissing[ASN1_MAX_NAME_SIZE + 1]; /* identifier name not fou
#ifdef __clang__
__attribute__((no_sanitize("integer")))
#endif
-_GL_ATTRIBUTE_PURE
+__attribute__((__pure__))
static unsigned int
_asn1_hash_name (const char *x)
{
@@ -634,7 +635,7 @@ _asn1_ltostr (int64_t v, char str[LTOSTR_MAX_SIZE])
count = 0;
do
{
- d = val / 10;
+ d = grub_divmod64(val, 10, NULL);
r = val - d * 10;
temp[start + count] = '0' + (char) r;
count++;
diff --git a/grub-core/lib/libtasn1/lib/int.h b/grub-core/lib/libtasn1/lib/int.h
index ea1625786c1..4a568efee9c 100644
--- a/grub-core/lib/libtasn1/lib/int.h
+++ b/grub-core/lib/libtasn1/lib/int.h
@@ -35,7 +35,7 @@
#include <sys/types.h>
#endif
-#include <libtasn1.h>
+#include "grub/libtasn1.h"
#define ASN1_SMALL_VALUE_SIZE 16
@@ -115,7 +115,7 @@ extern const tag_and_class_st _asn1_tags[];
#define _asn1_strtoul(n,e,b) strtoul((const char *) n, e, b)
#define _asn1_strcmp(a,b) strcmp((const char *)a, (const char *)b)
#define _asn1_strcpy(a,b) strcpy((char *)a, (const char *)b)
-#define _asn1_strcat(a,b) strcat((char *)a, (const char *)b)
+#define _asn1_strcat(a,b) memcpy((char *)a + strlen((const char *)a), (const char *)b, strlen((const char *)b) + 1)
#if SIZEOF_UNSIGNED_LONG_INT == 8
# define _asn1_strtou64(n,e,b) strtoul((const char *) n, e, b)
diff --git a/include/grub/libtasn1.h b/include/grub/libtasn1.h
index 785eda2ae3f..28dbf16c4e0 100644
--- a/include/grub/libtasn1.h
+++ b/include/grub/libtasn1.h
@@ -38,29 +38,15 @@
#ifndef LIBTASN1_H
#define LIBTASN1_H
-#ifndef ASN1_API
-#if defined ASN1_BUILDING && defined HAVE_VISIBILITY && HAVE_VISIBILITY
-#define ASN1_API __attribute__((__visibility__("default")))
-#elif defined ASN1_BUILDING && defined _MSC_VER && ! defined ASN1_STATIC
-#define ASN1_API __declspec(dllexport)
-#elif defined _MSC_VER && ! defined ASN1_STATIC
-#define ASN1_API __declspec(dllimport)
-#else
+/* grub: ASN1_API is not used */
#define ASN1_API
-#endif
-#endif
-#ifdef __GNUC__
-# define __LIBTASN1_CONST__ __attribute__((const))
-# define __LIBTASN1_PURE__ __attribute__((pure))
-#else
-# define __LIBTASN1_CONST__
-# define __LIBTASN1_PURE__
-#endif
+/* grub: all our supported compilers support these attributes */
+#define __LIBTASN1_CONST__ __attribute__((const))
+#define __LIBTASN1_PURE__ __attribute__((pure))
-#include <sys/types.h>
-#include <time.h>
-#include <stdio.h> /* for FILE* */
+#include <grub/types.h>
+#include <grub/time.h>
#ifdef __cplusplus
extern "C"

70
0296-libtasn1-compile-into-asn1-module.patch Normal file
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@ -0,0 +1,70 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Fri, 5 Jun 2020 17:47:25 +1000
Subject: [PATCH] libtasn1: compile into asn1 module
Create a wrapper file that specifies the module license.
Set up the makefile so it is built.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/Makefile.core.def | 15 +++++++++++++++
grub-core/lib/libtasn1_wrap/wrap.c | 26 ++++++++++++++++++++++++++
2 files changed, 41 insertions(+)
create mode 100644 grub-core/lib/libtasn1_wrap/wrap.c
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 58bf113e7c1..a9f589a7b99 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -2554,3 +2554,18 @@ module = {
common = commands/i386/wrmsr.c;
enable = x86;
};
+
+module = {
+ name = asn1;
+ common = lib/libtasn1/lib/decoding.c;
+ common = lib/libtasn1/lib/coding.c;
+ common = lib/libtasn1/lib/element.c;
+ common = lib/libtasn1/lib/structure.c;
+ common = lib/libtasn1/lib/parser_aux.c;
+ common = lib/libtasn1/lib/gstr.c;
+ common = lib/libtasn1/lib/errors.c;
+ common = lib/libtasn1_wrap/wrap.c;
+ cflags = '$(CFLAGS_POSIX) $(CFLAGS_GNULIB)';
+ // -Wno-type-limits comes from libtasn1's configure.ac
+ cppflags = '$(CPPFLAGS_POSIX) $(CPPFLAGS_GNULIB) -I$(srcdir)/lib/libtasn1/lib -Wno-type-limits';
+};
diff --git a/grub-core/lib/libtasn1_wrap/wrap.c b/grub-core/lib/libtasn1_wrap/wrap.c
new file mode 100644
index 00000000000..622ba942e33
--- /dev/null
+++ b/grub-core/lib/libtasn1_wrap/wrap.c
@@ -0,0 +1,26 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2020 IBM Corporation
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+
+/*
+ * libtasn1 is provided under LGPL2.1+, which is compatible
+ * with GPL3+. As Grub as a whole is under GPL3+, this module
+ * is therefore under GPL3+ also.
+ */
+GRUB_MOD_LICENSE ("GPLv3+");

1455
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File diff suppressed because one or more lines are too long

255
0298-grub-install-support-embedding-x509-certificates.patch Normal file
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@ -0,0 +1,255 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Alastair D'Silva <alastair@d-silva.org>
Date: Mon, 6 Jul 2020 13:33:04 +1000
Subject: [PATCH] grub-install: support embedding x509 certificates
To support verification of appended signatures, we need a way to
embed the necessary public keys. Existing appended signature schemes
in the Linux kernel use X.509 certificates, so allow certificates to
be embedded in the grub core image in the same way as PGP keys.
Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/commands/pgp.c | 2 +-
util/grub-install-common.c | 23 ++++++++++++++++++++++-
util/grub-mkimage.c | 15 +++++++++++++--
util/mkimage.c | 41 ++++++++++++++++++++++++++++++++++++++---
include/grub/kernel.h | 3 ++-
include/grub/util/install.h | 7 +++++--
6 files changed, 81 insertions(+), 10 deletions(-)
diff --git a/grub-core/commands/pgp.c b/grub-core/commands/pgp.c
index 4e0667c1cd0..3cd31f50b5b 100644
--- a/grub-core/commands/pgp.c
+++ b/grub-core/commands/pgp.c
@@ -944,7 +944,7 @@ GRUB_MOD_INIT(pgp)
grub_memset (&pseudo_file, 0, sizeof (pseudo_file));
/* Not an ELF module, skip. */
- if (header->type != OBJ_TYPE_PUBKEY)
+ if (header->type != OBJ_TYPE_GPG_PUBKEY)
continue;
pseudo_file.fs = &pseudo_fs;
diff --git a/util/grub-install-common.c b/util/grub-install-common.c
index e2be0a3e305..65cde2fa2f0 100644
--- a/util/grub-install-common.c
+++ b/util/grub-install-common.c
@@ -307,6 +307,8 @@ handle_install_list (struct install_list *il, const char *val,
static char **pubkeys;
static size_t npubkeys;
+static char **x509keys;
+static size_t nx509keys;
static grub_compression_t compression;
static size_t appsig_size;
@@ -339,6 +341,12 @@ grub_install_parse (int key, char *arg)
* (npubkeys + 1));
pubkeys[npubkeys++] = xstrdup (arg);
return 1;
+ case 'x':
+ x509keys = xrealloc (x509keys,
+ sizeof (x509keys[0])
+ * (nx509keys + 1));
+ x509keys[nx509keys++] = xstrdup (arg);
+ return 1;
case GRUB_INSTALL_OPTIONS_VERBOSITY:
verbosity++;
@@ -465,6 +473,9 @@ grub_install_make_image_wrap_file (const char *dir, const char *prefix,
for (pk = pubkeys; pk < pubkeys + npubkeys; pk++)
slen += 20 + grub_strlen (*pk);
+ for (pk = x509keys; pk < x509keys + nx509keys; pk++)
+ slen += 10 + grub_strlen (*pk);
+
for (md = modules.entries; *md; md++)
{
slen += 10 + grub_strlen (*md);
@@ -493,6 +504,14 @@ grub_install_make_image_wrap_file (const char *dir, const char *prefix,
*p++ = ' ';
}
+ for (pk = x509keys; pk < x509keys + nx509keys; pk++)
+ {
+ p = grub_stpcpy (p, "--x509 '");
+ p = grub_stpcpy (p, *pk);
+ *p++ = '\'';
+ *p++ = ' ';
+ }
+
for (md = modules.entries; *md; md++)
{
*p++ = '\'';
@@ -520,7 +539,9 @@ grub_install_make_image_wrap_file (const char *dir, const char *prefix,
grub_install_generate_image (dir, prefix, fp, outname,
modules.entries, memdisk_path,
- pubkeys, npubkeys, config_path, tgt,
+ pubkeys, npubkeys,
+ x509keys, nx509keys,
+ config_path, tgt,
note, appsig_size, compression, dtb);
while (dc--)
grub_install_pop_module ();
diff --git a/util/grub-mkimage.c b/util/grub-mkimage.c
index c1e07c70dc7..6034c51ece4 100644
--- a/util/grub-mkimage.c
+++ b/util/grub-mkimage.c
@@ -75,7 +75,8 @@ static struct argp_option options[] = {
/* TRANSLATORS: "embed" is a verb (command description). "*/
{"config", 'c', N_("FILE"), 0, N_("embed FILE as an early config"), 0},
/* TRANSLATORS: "embed" is a verb (command description). "*/
- {"pubkey", 'k', N_("FILE"), 0, N_("embed FILE as public key for signature checking"), 0},
+ {"pubkey", 'k', N_("FILE"), 0, N_("embed FILE as public key for PGP signature checking"), 0},
+ {"x509", 'x', N_("FILE"), 0, N_("embed FILE as an x509 certificate for appended signature checking"), 0},
/* TRANSLATORS: NOTE is a name of segment. */
{"note", 'n', 0, 0, N_("add NOTE segment for CHRP IEEE1275"), 0},
{"output", 'o', N_("FILE"), 0, N_("output a generated image to FILE [default=stdout]"), 0},
@@ -122,6 +123,8 @@ struct arguments
char *dtb;
char **pubkeys;
size_t npubkeys;
+ char **x509keys;
+ size_t nx509keys;
char *font;
char *config;
int note;
@@ -202,6 +205,13 @@ argp_parser (int key, char *arg, struct argp_state *state)
arguments->pubkeys[arguments->npubkeys++] = xstrdup (arg);
break;
+ case 'x':
+ arguments->x509keys = xrealloc (arguments->x509keys,
+ sizeof (arguments->x509keys[0])
+ * (arguments->nx509keys + 1));
+ arguments->x509keys[arguments->nx509keys++] = xstrdup (arg);
+ break;
+
case 'c':
if (arguments->config)
free (arguments->config);
@@ -317,7 +327,8 @@ main (int argc, char *argv[])
grub_install_generate_image (arguments.dir, arguments.prefix, fp,
arguments.output, arguments.modules,
arguments.memdisk, arguments.pubkeys,
- arguments.npubkeys, arguments.config,
+ arguments.npubkeys, arguments.x509keys,
+ arguments.nx509keys, arguments.config,
arguments.image_target, arguments.note,
arguments.appsig_size,
arguments.comp, arguments.dtb);
diff --git a/util/mkimage.c b/util/mkimage.c
index bd06968decc..5702a00d06f 100644
--- a/util/mkimage.c
+++ b/util/mkimage.c
@@ -819,8 +819,10 @@ grub_install_get_image_targets_string (void)
void
grub_install_generate_image (const char *dir, const char *prefix,
FILE *out, const char *outname, char *mods[],
- char *memdisk_path, char **pubkey_paths,
- size_t npubkeys, char *config_path,
+ char *memdisk_path,
+ char **pubkey_paths, size_t npubkeys,
+ char **x509key_paths, size_t nx509keys,
+ char *config_path,
const struct grub_install_image_target_desc *image_target,
int note, size_t appsig_size, grub_compression_t comp, const char *dtb_path)
{
@@ -864,6 +866,19 @@ grub_install_generate_image (const char *dir, const char *prefix,
}
}
+ {
+ size_t i;
+ for (i = 0; i < nx509keys; i++)
+ {
+ size_t curs;
+ curs = ALIGN_ADDR (grub_util_get_image_size (x509key_paths[i]));
+ grub_util_info ("the size of x509 public key %u is 0x%"
+ GRUB_HOST_PRIxLONG_LONG,
+ (unsigned) i, (unsigned long long) curs);
+ total_module_size += curs + sizeof (struct grub_module_header);
+ }
+ }
+
if (memdisk_path)
{
memdisk_size = ALIGN_UP(grub_util_get_image_size (memdisk_path), 512);
@@ -979,7 +994,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
curs = grub_util_get_image_size (pubkey_paths[i]);
header = (struct grub_module_header *) (kernel_img + offset);
- header->type = grub_host_to_target32 (OBJ_TYPE_PUBKEY);
+ header->type = grub_host_to_target32 (OBJ_TYPE_GPG_PUBKEY);
header->size = grub_host_to_target32 (curs + sizeof (*header));
offset += sizeof (*header);
@@ -988,6 +1003,26 @@ grub_install_generate_image (const char *dir, const char *prefix,
}
}
+ {
+ size_t i;
+ for (i = 0; i < nx509keys; i++)
+ {
+ size_t curs;
+ struct grub_module_header *header;
+
+ curs = grub_util_get_image_size (x509key_paths[i]);
+
+ header = (struct grub_module_header *) (kernel_img + offset);
+ header->type = grub_host_to_target32 (OBJ_TYPE_X509_PUBKEY);
+ header->size = grub_host_to_target32 (curs + sizeof (*header));
+ offset += sizeof (*header);
+
+ grub_util_load_image (x509key_paths[i], kernel_img + offset);
+ offset += ALIGN_ADDR (curs);
+ }
+ }
+
+
if (memdisk_path)
{
struct grub_module_header *header;
diff --git a/include/grub/kernel.h b/include/grub/kernel.h
index de48cd44ccb..5d54c45cb70 100644
--- a/include/grub/kernel.h
+++ b/include/grub/kernel.h
@@ -28,7 +28,8 @@ enum
OBJ_TYPE_MEMDISK,
OBJ_TYPE_CONFIG,
OBJ_TYPE_PREFIX,
- OBJ_TYPE_PUBKEY,
+ OBJ_TYPE_GPG_PUBKEY,
+ OBJ_TYPE_X509_PUBKEY,
OBJ_TYPE_DTB
};
diff --git a/include/grub/util/install.h b/include/grub/util/install.h
index eb1b83b6d94..8353bafb00a 100644
--- a/include/grub/util/install.h
+++ b/include/grub/util/install.h
@@ -63,6 +63,8 @@
/* TRANSLATORS: "embed" is a verb (command description). "*/ \
{ "pubkey", 'k', N_("FILE"), 0, \
N_("embed FILE as public key for signature checking"), 0}, \
+ { "x509key", 'x', N_("FILE"), 0, \
+ N_("embed FILE as an x509 certificate for signature checking"), 0}, \
{ "appended-signature-size", GRUB_INSTALL_OPTIONS_APPENDED_SIGNATURE_SIZE,\
"SIZE", 0, N_("Add a note segment reserving SIZE bytes for an appended signature"), \
1}, \
@@ -182,8 +184,9 @@ void
grub_install_generate_image (const char *dir, const char *prefix,
FILE *out,
const char *outname, char *mods[],
- char *memdisk_path, char **pubkey_paths,
- size_t npubkeys,
+ char *memdisk_path,
+ char **pubkey_paths, size_t npubkeys,
+ char **x509key_paths, size_t nx509keys,
char *config_path,
const struct grub_install_image_target_desc *image_target,
int note, size_t appsig_size,

639
0299-appended-signatures-import-GNUTLS-s-ASN.1-descriptio.patch Normal file
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@ -0,0 +1,639 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Thu, 30 Jul 2020 01:35:10 +1000
Subject: [PATCH] appended signatures: import GNUTLS's ASN.1 description files
In order to parse PKCS#7 messages and X.509 certificates with libtasn1,
we need some information about how they are encoded.
We get these from GNUTLS, which has the benefit that they support the
features we need and are well tested.
The GNUTLS license is LGPLv2.1+, which is GPLv3 compatible, allowing
us to import it without issue.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/commands/appendedsig/gnutls_asn1_tab.c | 121 ++++++
grub-core/commands/appendedsig/pkix_asn1_tab.c | 484 +++++++++++++++++++++++
2 files changed, 605 insertions(+)
create mode 100644 grub-core/commands/appendedsig/gnutls_asn1_tab.c
create mode 100644 grub-core/commands/appendedsig/pkix_asn1_tab.c
diff --git a/grub-core/commands/appendedsig/gnutls_asn1_tab.c b/grub-core/commands/appendedsig/gnutls_asn1_tab.c
new file mode 100644
index 00000000000..ddd1314e63b
--- /dev/null
+++ b/grub-core/commands/appendedsig/gnutls_asn1_tab.c
@@ -0,0 +1,121 @@
+#include <grub/mm.h>
+#include <grub/libtasn1.h>
+
+const asn1_static_node gnutls_asn1_tab[] = {
+ { "GNUTLS", 536872976, NULL },
+ { NULL, 1073741836, NULL },
+ { "RSAPublicKey", 1610612741, NULL },
+ { "modulus", 1073741827, NULL },
+ { "publicExponent", 3, NULL },
+ { "RSAPrivateKey", 1610612741, NULL },
+ { "version", 1073741827, NULL },
+ { "modulus", 1073741827, NULL },
+ { "publicExponent", 1073741827, NULL },
+ { "privateExponent", 1073741827, NULL },
+ { "prime1", 1073741827, NULL },
+ { "prime2", 1073741827, NULL },
+ { "exponent1", 1073741827, NULL },
+ { "exponent2", 1073741827, NULL },
+ { "coefficient", 1073741827, NULL },
+ { "otherPrimeInfos", 16386, "OtherPrimeInfos"},
+ { "ProvableSeed", 1610612741, NULL },
+ { "algorithm", 1073741836, NULL },
+ { "seed", 7, NULL },
+ { "OtherPrimeInfos", 1612709899, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "OtherPrimeInfo"},
+ { "OtherPrimeInfo", 1610612741, NULL },
+ { "prime", 1073741827, NULL },
+ { "exponent", 1073741827, NULL },
+ { "coefficient", 3, NULL },
+ { "AlgorithmIdentifier", 1610612741, NULL },
+ { "algorithm", 1073741836, NULL },
+ { "parameters", 541081613, NULL },
+ { "algorithm", 1, NULL },
+ { "DigestInfo", 1610612741, NULL },
+ { "digestAlgorithm", 1073741826, "DigestAlgorithmIdentifier"},
+ { "digest", 7, NULL },
+ { "DigestAlgorithmIdentifier", 1073741826, "AlgorithmIdentifier"},
+ { "DSAPublicKey", 1073741827, NULL },
+ { "DSAParameters", 1610612741, NULL },
+ { "p", 1073741827, NULL },
+ { "q", 1073741827, NULL },
+ { "g", 3, NULL },
+ { "DSASignatureValue", 1610612741, NULL },
+ { "r", 1073741827, NULL },
+ { "s", 3, NULL },
+ { "DSAPrivateKey", 1610612741, NULL },
+ { "version", 1073741827, NULL },
+ { "p", 1073741827, NULL },
+ { "q", 1073741827, NULL },
+ { "g", 1073741827, NULL },
+ { "Y", 1073741827, NULL },
+ { "priv", 3, NULL },
+ { "DHParameter", 1610612741, NULL },
+ { "prime", 1073741827, NULL },
+ { "base", 1073741827, NULL },
+ { "privateValueLength", 16387, NULL },
+ { "ECParameters", 1610612754, NULL },
+ { "namedCurve", 12, NULL },
+ { "ECPrivateKey", 1610612741, NULL },
+ { "Version", 1073741827, NULL },
+ { "privateKey", 1073741831, NULL },
+ { "parameters", 1610637314, "ECParameters"},
+ { NULL, 2056, "0"},
+ { "publicKey", 536895494, NULL },
+ { NULL, 2056, "1"},
+ { "PrincipalName", 1610612741, NULL },
+ { "name-type", 1610620931, NULL },
+ { NULL, 2056, "0"},
+ { "name-string", 536879115, NULL },
+ { NULL, 1073743880, "1"},
+ { NULL, 27, NULL },
+ { "KRB5PrincipalName", 1610612741, NULL },
+ { "realm", 1610620955, NULL },
+ { NULL, 2056, "0"},
+ { "principalName", 536879106, "PrincipalName"},
+ { NULL, 2056, "1"},
+ { "RSAPSSParameters", 1610612741, NULL },
+ { "hashAlgorithm", 1610637314, "AlgorithmIdentifier"},
+ { NULL, 2056, "0"},
+ { "maskGenAlgorithm", 1610637314, "AlgorithmIdentifier"},
+ { NULL, 2056, "1"},
+ { "saltLength", 1610653699, NULL },
+ { NULL, 1073741833, "20"},
+ { NULL, 2056, "2"},
+ { "trailerField", 536911875, NULL },
+ { NULL, 1073741833, "1"},
+ { NULL, 2056, "3"},
+ { "GOSTParameters", 1610612741, NULL },
+ { "publicKeyParamSet", 1073741836, NULL },
+ { "digestParamSet", 16396, NULL },
+ { "GOSTParametersOld", 1610612741, NULL },
+ { "publicKeyParamSet", 1073741836, NULL },
+ { "digestParamSet", 1073741836, NULL },
+ { "encryptionParamSet", 16396, NULL },
+ { "GOSTPrivateKey", 1073741831, NULL },
+ { "GOSTPrivateKeyOld", 1073741827, NULL },
+ { "IssuerSignTool", 1610612741, NULL },
+ { "signTool", 1073741858, NULL },
+ { "cATool", 1073741858, NULL },
+ { "signToolCert", 1073741858, NULL },
+ { "cAToolCert", 34, NULL },
+ { "Gost28147-89-EncryptedKey", 1610612741, NULL },
+ { "encryptedKey", 1073741831, NULL },
+ { "maskKey", 1610637319, NULL },
+ { NULL, 4104, "0"},
+ { "macKey", 7, NULL },
+ { "SubjectPublicKeyInfo", 1610612741, NULL },
+ { "algorithm", 1073741826, "AlgorithmIdentifier"},
+ { "subjectPublicKey", 6, NULL },
+ { "GostR3410-TransportParameters", 1610612741, NULL },
+ { "encryptionParamSet", 1073741836, NULL },
+ { "ephemeralPublicKey", 1610637314, "SubjectPublicKeyInfo"},
+ { NULL, 4104, "0"},
+ { "ukm", 7, NULL },
+ { "GostR3410-KeyTransport", 536870917, NULL },
+ { "sessionEncryptedKey", 1073741826, "Gost28147-89-EncryptedKey"},
+ { "transportParameters", 536895490, "GostR3410-TransportParameters"},
+ { NULL, 4104, "0"},
+ { NULL, 0, NULL }
+};
diff --git a/grub-core/commands/appendedsig/pkix_asn1_tab.c b/grub-core/commands/appendedsig/pkix_asn1_tab.c
new file mode 100644
index 00000000000..adef69d95ce
--- /dev/null
+++ b/grub-core/commands/appendedsig/pkix_asn1_tab.c
@@ -0,0 +1,484 @@
+#include <grub/mm.h>
+#include <grub/libtasn1.h>
+
+const asn1_static_node pkix_asn1_tab[] = {
+ { "PKIX1", 536875024, NULL },
+ { NULL, 1073741836, NULL },
+ { "PrivateKeyUsagePeriod", 1610612741, NULL },
+ { "notBefore", 1610637349, NULL },
+ { NULL, 4104, "0"},
+ { "notAfter", 536895525, NULL },
+ { NULL, 4104, "1"},
+ { "AuthorityKeyIdentifier", 1610612741, NULL },
+ { "keyIdentifier", 1610637319, NULL },
+ { NULL, 4104, "0"},
+ { "authorityCertIssuer", 1610637314, "GeneralNames"},
+ { NULL, 4104, "1"},
+ { "authorityCertSerialNumber", 536895490, "CertificateSerialNumber"},
+ { NULL, 4104, "2"},
+ { "SubjectKeyIdentifier", 1073741831, NULL },
+ { "KeyUsage", 1073741830, NULL },
+ { "DirectoryString", 1610612754, NULL },
+ { "teletexString", 1612709918, NULL },
+ { "MAX", 524298, "1"},
+ { "printableString", 1612709919, NULL },
+ { "MAX", 524298, "1"},
+ { "universalString", 1612709920, NULL },
+ { "MAX", 524298, "1"},
+ { "utf8String", 1612709922, NULL },
+ { "MAX", 524298, "1"},
+ { "bmpString", 1612709921, NULL },
+ { "MAX", 524298, "1"},
+ { "ia5String", 538968093, NULL },
+ { "MAX", 524298, "1"},
+ { "SubjectAltName", 1073741826, "GeneralNames"},
+ { "GeneralNames", 1612709899, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "GeneralName"},
+ { "GeneralName", 1610612754, NULL },
+ { "otherName", 1610620930, "AnotherName"},
+ { NULL, 4104, "0"},
+ { "rfc822Name", 1610620957, NULL },
+ { NULL, 4104, "1"},
+ { "dNSName", 1610620957, NULL },
+ { NULL, 4104, "2"},
+ { "x400Address", 1610620941, NULL },
+ { NULL, 4104, "3"},
+ { "directoryName", 1610620939, NULL },
+ { NULL, 1073743880, "4"},
+ { NULL, 2, "RelativeDistinguishedName"},
+ { "ediPartyName", 1610620941, NULL },
+ { NULL, 4104, "5"},
+ { "uniformResourceIdentifier", 1610620957, NULL },
+ { NULL, 4104, "6"},
+ { "iPAddress", 1610620935, NULL },
+ { NULL, 4104, "7"},
+ { "registeredID", 536879116, NULL },
+ { NULL, 4104, "8"},
+ { "AnotherName", 1610612741, NULL },
+ { "type-id", 1073741836, NULL },
+ { "value", 541073421, NULL },
+ { NULL, 1073743880, "0"},
+ { "type-id", 1, NULL },
+ { "IssuerAltName", 1073741826, "GeneralNames"},
+ { "BasicConstraints", 1610612741, NULL },
+ { "cA", 1610645508, NULL },
+ { NULL, 131081, NULL },
+ { "pathLenConstraint", 537411587, NULL },
+ { "0", 10, "MAX"},
+ { "CRLDistributionPoints", 1612709899, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "DistributionPoint"},
+ { "DistributionPoint", 1610612741, NULL },
+ { "distributionPoint", 1610637314, "DistributionPointName"},
+ { NULL, 2056, "0"},
+ { "reasons", 1610637314, "ReasonFlags"},
+ { NULL, 4104, "1"},
+ { "cRLIssuer", 536895490, "GeneralNames"},
+ { NULL, 4104, "2"},
+ { "DistributionPointName", 1610612754, NULL },
+ { "fullName", 1610620930, "GeneralNames"},
+ { NULL, 4104, "0"},
+ { "nameRelativeToCRLIssuer", 536879106, "RelativeDistinguishedName"},
+ { NULL, 4104, "1"},
+ { "ReasonFlags", 1073741830, NULL },
+ { "ExtKeyUsageSyntax", 1612709899, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 12, NULL },
+ { "AuthorityInfoAccessSyntax", 1612709899, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "AccessDescription"},
+ { "AccessDescription", 1610612741, NULL },
+ { "accessMethod", 1073741836, NULL },
+ { "accessLocation", 2, "GeneralName"},
+ { "Attribute", 1610612741, NULL },
+ { "type", 1073741836, NULL },
+ { "values", 536870927, NULL },
+ { NULL, 13, NULL },
+ { "AttributeTypeAndValue", 1610612741, NULL },
+ { "type", 1073741836, NULL },
+ { "value", 13, NULL },
+ { "Name", 1610612754, NULL },
+ { "rdnSequence", 536870923, NULL },
+ { NULL, 2, "RelativeDistinguishedName"},
+ { "DistinguishedName", 1610612747, NULL },
+ { NULL, 2, "RelativeDistinguishedName"},
+ { "RelativeDistinguishedName", 1612709903, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "AttributeTypeAndValue"},
+ { "Certificate", 1610612741, NULL },
+ { "tbsCertificate", 1073741826, "TBSCertificate"},
+ { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "signature", 6, NULL },
+ { "TBSCertificate", 1610612741, NULL },
+ { "version", 1610653699, NULL },
+ { NULL, 1073741833, "0"},
+ { NULL, 2056, "0"},
+ { "serialNumber", 1073741826, "CertificateSerialNumber"},
+ { "signature", 1073741826, "AlgorithmIdentifier"},
+ { "issuer", 1073741826, "Name"},
+ { "validity", 1073741826, "Validity"},
+ { "subject", 1073741826, "Name"},
+ { "subjectPublicKeyInfo", 1073741826, "SubjectPublicKeyInfo"},
+ { "issuerUniqueID", 1610637314, "UniqueIdentifier"},
+ { NULL, 4104, "1"},
+ { "subjectUniqueID", 1610637314, "UniqueIdentifier"},
+ { NULL, 4104, "2"},
+ { "extensions", 536895490, "Extensions"},
+ { NULL, 2056, "3"},
+ { "CertificateSerialNumber", 1073741827, NULL },
+ { "Validity", 1610612741, NULL },
+ { "notBefore", 1073741826, "Time"},
+ { "notAfter", 2, "Time"},
+ { "Time", 1610612754, NULL },
+ { "utcTime", 1073741860, NULL },
+ { "generalTime", 37, NULL },
+ { "UniqueIdentifier", 1073741830, NULL },
+ { "SubjectPublicKeyInfo", 1610612741, NULL },
+ { "algorithm", 1073741826, "AlgorithmIdentifier"},
+ { "subjectPublicKey", 6, NULL },
+ { "Extensions", 1612709899, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "Extension"},
+ { "Extension", 1610612741, NULL },
+ { "extnID", 1073741836, NULL },
+ { "critical", 1610645508, NULL },
+ { NULL, 131081, NULL },
+ { "extnValue", 7, NULL },
+ { "CertificateList", 1610612741, NULL },
+ { "tbsCertList", 1073741826, "TBSCertList"},
+ { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "signature", 6, NULL },
+ { "TBSCertList", 1610612741, NULL },
+ { "version", 1073758211, NULL },
+ { "signature", 1073741826, "AlgorithmIdentifier"},
+ { "issuer", 1073741826, "Name"},
+ { "thisUpdate", 1073741826, "Time"},
+ { "nextUpdate", 1073758210, "Time"},
+ { "revokedCertificates", 1610629131, NULL },
+ { NULL, 536870917, NULL },
+ { "userCertificate", 1073741826, "CertificateSerialNumber"},
+ { "revocationDate", 1073741826, "Time"},
+ { "crlEntryExtensions", 16386, "Extensions"},
+ { "crlExtensions", 536895490, "Extensions"},
+ { NULL, 2056, "0"},
+ { "AlgorithmIdentifier", 1610612741, NULL },
+ { "algorithm", 1073741836, NULL },
+ { "parameters", 541081613, NULL },
+ { "algorithm", 1, NULL },
+ { "Dss-Sig-Value", 1610612741, NULL },
+ { "r", 1073741827, NULL },
+ { "s", 3, NULL },
+ { "Dss-Parms", 1610612741, NULL },
+ { "p", 1073741827, NULL },
+ { "q", 1073741827, NULL },
+ { "g", 3, NULL },
+ { "pkcs-7-ContentInfo", 1610612741, NULL },
+ { "contentType", 1073741836, NULL },
+ { "content", 541073421, NULL },
+ { NULL, 1073743880, "0"},
+ { "contentType", 1, NULL },
+ { "pkcs-7-DigestInfo", 1610612741, NULL },
+ { "digestAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "digest", 7, NULL },
+ { "pkcs-7-SignedData", 1610612741, NULL },
+ { "version", 1073741827, NULL },
+ { "digestAlgorithms", 1073741826, "pkcs-7-DigestAlgorithmIdentifiers"},
+ { "encapContentInfo", 1073741826, "pkcs-7-EncapsulatedContentInfo"},
+ { "certificates", 1610637314, "pkcs-7-CertificateSet"},
+ { NULL, 4104, "0"},
+ { "crls", 1610637314, "pkcs-7-CertificateRevocationLists"},
+ { NULL, 4104, "1"},
+ { "signerInfos", 2, "pkcs-7-SignerInfos"},
+ { "pkcs-7-DigestAlgorithmIdentifiers", 1610612751, NULL },
+ { NULL, 2, "AlgorithmIdentifier"},
+ { "pkcs-7-EncapsulatedContentInfo", 1610612741, NULL },
+ { "eContentType", 1073741836, NULL },
+ { "eContent", 536895501, NULL },
+ { NULL, 2056, "0"},
+ { "pkcs-7-CertificateRevocationLists", 1610612751, NULL },
+ { NULL, 13, NULL },
+ { "pkcs-7-CertificateChoices", 1610612754, NULL },
+ { "certificate", 13, NULL },
+ { "pkcs-7-CertificateSet", 1610612751, NULL },
+ { NULL, 2, "pkcs-7-CertificateChoices"},
+ { "IssuerAndSerialNumber", 1610612741, NULL },
+ { "issuer", 1073741826, "Name"},
+ { "serialNumber", 2, "CertificateSerialNumber"},
+ { "pkcs-7-SignerInfo", 1610612741, NULL },
+ { "version", 1073741827, NULL },
+ { "sid", 1073741826, "SignerIdentifier"},
+ { "digestAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "signedAttrs", 1610637314, "SignedAttributes"},
+ { NULL, 4104, "0"},
+ { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "signature", 1073741831, NULL },
+ { "unsignedAttrs", 536895490, "SignedAttributes"},
+ { NULL, 4104, "1"},
+ { "SignedAttributes", 1612709903, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "Attribute"},
+ { "SignerIdentifier", 1610612754, NULL },
+ { "issuerAndSerialNumber", 1073741826, "IssuerAndSerialNumber"},
+ { "subjectKeyIdentifier", 536879111, NULL },
+ { NULL, 4104, "0"},
+ { "pkcs-7-SignerInfos", 1610612751, NULL },
+ { NULL, 2, "pkcs-7-SignerInfo"},
+ { "pkcs-10-CertificationRequestInfo", 1610612741, NULL },
+ { "version", 1073741827, NULL },
+ { "subject", 1073741826, "Name"},
+ { "subjectPKInfo", 1073741826, "SubjectPublicKeyInfo"},
+ { "attributes", 536879106, "Attributes"},
+ { NULL, 4104, "0"},
+ { "Attributes", 1610612751, NULL },
+ { NULL, 2, "Attribute"},
+ { "pkcs-10-CertificationRequest", 1610612741, NULL },
+ { "certificationRequestInfo", 1073741826, "pkcs-10-CertificationRequestInfo"},
+ { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "signature", 6, NULL },
+ { "pkcs-9-at-challengePassword", 1879048204, NULL },
+ { "iso", 1073741825, "1"},
+ { "member-body", 1073741825, "2"},
+ { "us", 1073741825, "840"},
+ { "rsadsi", 1073741825, "113549"},
+ { "pkcs", 1073741825, "1"},
+ { NULL, 1073741825, "9"},
+ { NULL, 1, "7"},
+ { "pkcs-9-challengePassword", 1610612754, NULL },
+ { "printableString", 1073741855, NULL },
+ { "utf8String", 34, NULL },
+ { "pkcs-9-localKeyId", 1073741831, NULL },
+ { "pkcs-8-PrivateKeyInfo", 1610612741, NULL },
+ { "version", 1073741827, NULL },
+ { "privateKeyAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "privateKey", 1073741831, NULL },
+ { "attributes", 536895490, "Attributes"},
+ { NULL, 4104, "0"},
+ { "pkcs-8-EncryptedPrivateKeyInfo", 1610612741, NULL },
+ { "encryptionAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "encryptedData", 2, "pkcs-8-EncryptedData"},
+ { "pkcs-8-EncryptedData", 1073741831, NULL },
+ { "pkcs-5-des-CBC-params", 1612709895, NULL },
+ { NULL, 1048586, "8"},
+ { "pkcs-5-des-EDE3-CBC-params", 1612709895, NULL },
+ { NULL, 1048586, "8"},
+ { "pkcs-5-aes128-CBC-params", 1612709895, NULL },
+ { NULL, 1048586, "16"},
+ { "pkcs-5-aes192-CBC-params", 1612709895, NULL },
+ { NULL, 1048586, "16"},
+ { "pkcs-5-aes256-CBC-params", 1612709895, NULL },
+ { NULL, 1048586, "16"},
+ { "Gost28147-89-Parameters", 1610612741, NULL },
+ { "iv", 1073741831, NULL },
+ { "encryptionParamSet", 12, NULL },
+ { "pkcs-5-PBE-params", 1610612741, NULL },
+ { "salt", 1073741831, NULL },
+ { "iterationCount", 3, NULL },
+ { "pkcs-5-PBES2-params", 1610612741, NULL },
+ { "keyDerivationFunc", 1073741826, "AlgorithmIdentifier"},
+ { "encryptionScheme", 2, "AlgorithmIdentifier"},
+ { "pkcs-5-PBKDF2-params", 1610612741, NULL },
+ { "salt", 1610612754, NULL },
+ { "specified", 1073741831, NULL },
+ { "otherSource", 2, "AlgorithmIdentifier"},
+ { "iterationCount", 1611137027, NULL },
+ { "1", 10, "MAX"},
+ { "keyLength", 1611153411, NULL },
+ { "1", 10, "MAX"},
+ { "prf", 16386, "AlgorithmIdentifier"},
+ { "pkcs-12-PFX", 1610612741, NULL },
+ { "version", 1610874883, NULL },
+ { "v3", 1, "3"},
+ { "authSafe", 1073741826, "pkcs-7-ContentInfo"},
+ { "macData", 16386, "pkcs-12-MacData"},
+ { "pkcs-12-PbeParams", 1610612741, NULL },
+ { "salt", 1073741831, NULL },
+ { "iterations", 3, NULL },
+ { "pkcs-12-MacData", 1610612741, NULL },
+ { "mac", 1073741826, "pkcs-7-DigestInfo"},
+ { "macSalt", 1073741831, NULL },
+ { "iterations", 536903683, NULL },
+ { NULL, 9, "1"},
+ { "pkcs-12-AuthenticatedSafe", 1610612747, NULL },
+ { NULL, 2, "pkcs-7-ContentInfo"},
+ { "pkcs-12-SafeContents", 1610612747, NULL },
+ { NULL, 2, "pkcs-12-SafeBag"},
+ { "pkcs-12-SafeBag", 1610612741, NULL },
+ { "bagId", 1073741836, NULL },
+ { "bagValue", 1614815245, NULL },
+ { NULL, 1073743880, "0"},
+ { "badId", 1, NULL },
+ { "bagAttributes", 536887311, NULL },
+ { NULL, 2, "Attribute"},
+ { "pkcs-12-CertBag", 1610612741, NULL },
+ { "certId", 1073741836, NULL },
+ { "certValue", 541073421, NULL },
+ { NULL, 1073743880, "0"},
+ { "certId", 1, NULL },
+ { "pkcs-12-CRLBag", 1610612741, NULL },
+ { "crlId", 1073741836, NULL },
+ { "crlValue", 541073421, NULL },
+ { NULL, 1073743880, "0"},
+ { "crlId", 1, NULL },
+ { "pkcs-12-SecretBag", 1610612741, NULL },
+ { "secretTypeId", 1073741836, NULL },
+ { "secretValue", 541073421, NULL },
+ { NULL, 1073743880, "0"},
+ { "secretTypeId", 1, NULL },
+ { "pkcs-7-Data", 1073741831, NULL },
+ { "pkcs-7-EncryptedData", 1610612741, NULL },
+ { "version", 1073741827, NULL },
+ { "encryptedContentInfo", 1073741826, "pkcs-7-EncryptedContentInfo"},
+ { "unprotectedAttrs", 536895490, "pkcs-7-UnprotectedAttributes"},
+ { NULL, 4104, "1"},
+ { "pkcs-7-EncryptedContentInfo", 1610612741, NULL },
+ { "contentType", 1073741836, NULL },
+ { "contentEncryptionAlgorithm", 1073741826, "pkcs-7-ContentEncryptionAlgorithmIdentifier"},
+ { "encryptedContent", 536895495, NULL },
+ { NULL, 4104, "0"},
+ { "pkcs-7-ContentEncryptionAlgorithmIdentifier", 1073741826, "AlgorithmIdentifier"},
+ { "pkcs-7-UnprotectedAttributes", 1612709903, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "Attribute"},
+ { "ProxyCertInfo", 1610612741, NULL },
+ { "pCPathLenConstraint", 1611153411, NULL },
+ { "0", 10, "MAX"},
+ { "proxyPolicy", 2, "ProxyPolicy"},
+ { "ProxyPolicy", 1610612741, NULL },
+ { "policyLanguage", 1073741836, NULL },
+ { "policy", 16391, NULL },
+ { "certificatePolicies", 1612709899, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "PolicyInformation"},
+ { "PolicyInformation", 1610612741, NULL },
+ { "policyIdentifier", 1073741836, NULL },
+ { "policyQualifiers", 538984459, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "PolicyQualifierInfo"},
+ { "PolicyQualifierInfo", 1610612741, NULL },
+ { "policyQualifierId", 1073741836, NULL },
+ { "qualifier", 541065229, NULL },
+ { "policyQualifierId", 1, NULL },
+ { "CPSuri", 1073741853, NULL },
+ { "UserNotice", 1610612741, NULL },
+ { "noticeRef", 1073758210, "NoticeReference"},
+ { "explicitText", 16386, "DisplayText"},
+ { "NoticeReference", 1610612741, NULL },
+ { "organization", 1073741826, "DisplayText"},
+ { "noticeNumbers", 536870923, NULL },
+ { NULL, 3, NULL },
+ { "DisplayText", 1610612754, NULL },
+ { "ia5String", 1612709917, NULL },
+ { "200", 524298, "1"},
+ { "visibleString", 1612709923, NULL },
+ { "200", 524298, "1"},
+ { "bmpString", 1612709921, NULL },
+ { "200", 524298, "1"},
+ { "utf8String", 538968098, NULL },
+ { "200", 524298, "1"},
+ { "OCSPRequest", 1610612741, NULL },
+ { "tbsRequest", 1073741826, "TBSRequest"},
+ { "optionalSignature", 536895490, "Signature"},
+ { NULL, 2056, "0"},
+ { "TBSRequest", 1610612741, NULL },
+ { "version", 1610653699, NULL },
+ { NULL, 1073741833, "0"},
+ { NULL, 2056, "0"},
+ { "requestorName", 1610637314, "GeneralName"},
+ { NULL, 2056, "1"},
+ { "requestList", 1610612747, NULL },
+ { NULL, 2, "Request"},
+ { "requestExtensions", 536895490, "Extensions"},
+ { NULL, 2056, "2"},
+ { "Signature", 1610612741, NULL },
+ { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "signature", 1073741830, NULL },
+ { "certs", 536895499, NULL },
+ { NULL, 1073743880, "0"},
+ { NULL, 2, "Certificate"},
+ { "Request", 1610612741, NULL },
+ { "reqCert", 1073741826, "CertID"},
+ { "singleRequestExtensions", 536895490, "Extensions"},
+ { NULL, 2056, "0"},
+ { "CertID", 1610612741, NULL },
+ { "hashAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "issuerNameHash", 1073741831, NULL },
+ { "issuerKeyHash", 1073741831, NULL },
+ { "serialNumber", 2, "CertificateSerialNumber"},
+ { "OCSPResponse", 1610612741, NULL },
+ { "responseStatus", 1073741826, "OCSPResponseStatus"},
+ { "responseBytes", 536895490, "ResponseBytes"},
+ { NULL, 2056, "0"},
+ { "OCSPResponseStatus", 1610874901, NULL },
+ { "successful", 1073741825, "0"},
+ { "malformedRequest", 1073741825, "1"},
+ { "internalError", 1073741825, "2"},
+ { "tryLater", 1073741825, "3"},
+ { "sigRequired", 1073741825, "5"},
+ { "unauthorized", 1, "6"},
+ { "ResponseBytes", 1610612741, NULL },
+ { "responseType", 1073741836, NULL },
+ { "response", 7, NULL },
+ { "BasicOCSPResponse", 1610612741, NULL },
+ { "tbsResponseData", 1073741826, "ResponseData"},
+ { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
+ { "signature", 1073741830, NULL },
+ { "certs", 536895499, NULL },
+ { NULL, 1073743880, "0"},
+ { NULL, 2, "Certificate"},
+ { "ResponseData", 1610612741, NULL },
+ { "version", 1610653699, NULL },
+ { NULL, 1073741833, "0"},
+ { NULL, 2056, "0"},
+ { "responderID", 1073741826, "ResponderID"},
+ { "producedAt", 1073741861, NULL },
+ { "responses", 1610612747, NULL },
+ { NULL, 2, "SingleResponse"},
+ { "responseExtensions", 536895490, "Extensions"},
+ { NULL, 2056, "1"},
+ { "ResponderID", 1610612754, NULL },
+ { "byName", 1610620939, NULL },
+ { NULL, 1073743880, "1"},
+ { NULL, 2, "RelativeDistinguishedName"},
+ { "byKey", 536879111, NULL },
+ { NULL, 2056, "2"},
+ { "SingleResponse", 1610612741, NULL },
+ { "certID", 1073741826, "CertID"},
+ { "certStatus", 1073741826, "CertStatus"},
+ { "thisUpdate", 1073741861, NULL },
+ { "nextUpdate", 1610637349, NULL },
+ { NULL, 2056, "0"},
+ { "singleExtensions", 536895490, "Extensions"},
+ { NULL, 2056, "1"},
+ { "CertStatus", 1610612754, NULL },
+ { "good", 1610620948, NULL },
+ { NULL, 4104, "0"},
+ { "revoked", 1610620930, "RevokedInfo"},
+ { NULL, 4104, "1"},
+ { "unknown", 536879106, "UnknownInfo"},
+ { NULL, 4104, "2"},
+ { "RevokedInfo", 1610612741, NULL },
+ { "revocationTime", 1073741861, NULL },
+ { "revocationReason", 537157653, NULL },
+ { NULL, 1073743880, "0"},
+ { "unspecified", 1, "0"},
+ { "UnknownInfo", 1073741844, NULL },
+ { "NameConstraints", 1610612741, NULL },
+ { "permittedSubtrees", 1610637314, "GeneralSubtrees"},
+ { NULL, 4104, "0"},
+ { "excludedSubtrees", 536895490, "GeneralSubtrees"},
+ { NULL, 4104, "1"},
+ { "GeneralSubtrees", 1612709899, NULL },
+ { "MAX", 1074266122, "1"},
+ { NULL, 2, "GeneralSubtree"},
+ { "GeneralSubtree", 1610612741, NULL },
+ { "base", 1073741826, "GeneralName"},
+ { "minimum", 1610653699, NULL },
+ { NULL, 1073741833, "0"},
+ { NULL, 4104, "0"},
+ { "maximum", 536895491, NULL },
+ { NULL, 4104, "1"},
+ { "TlsFeatures", 536870923, NULL },
+ { NULL, 3, NULL },
+ { NULL, 0, NULL }
+};

1542
0300-appended-signatures-parse-PKCS-7-signedData-and-X.50.patch Normal file
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File diff suppressed because it is too large Load Diff

719
0301-appended-signatures-support-verifying-appended-signa.patch Normal file
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@ -0,0 +1,719 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Thu, 30 Jul 2020 01:35:43 +1000
Subject: [PATCH] appended signatures: support verifying appended signatures
Building on the parsers and the ability to embed x509 certificates, as
well as the existing gcrypt functionality, add a module for verifying
appended signatures.
This includes:
- a verifier that requires that kernels and grub modules have appended
signatures. It shares lots of logic with shim-lock verifier about what
files need to be verified and what modules are unsafe to have loaded.
- commands to manage the list of trusted certificates for verification.
Similar to the PGP verifier, if a certificate is embedded in the core
image, verification will be enforced unless disabled on the the grub
command line or by load_env.
Thus, as with the PGP verifier, it is not a complete secure-boot solution:
other mechanisms must be used to ensure that a user cannot drop to the
grub shell and disable verification.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/Makefile.core.def | 12 +
grub-core/commands/appendedsig/appendedsig.c | 644 +++++++++++++++++++++++++++
include/grub/file.h | 2 +
3 files changed, 658 insertions(+)
create mode 100644 grub-core/commands/appendedsig/appendedsig.c
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 78071360529..30bd9a4a587 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -977,6 +977,18 @@ module = {
cppflags = '-I$(srcdir)/lib/posix_wrap';
};
+module = {
+ name = appendedsig;
+ common = commands/appendedsig/appendedsig.c;
+ common = commands/appendedsig/x509.c;
+ common = commands/appendedsig/pkcs7.c;
+ common = commands/appendedsig/asn1util.c;
+ common = commands/appendedsig/gnutls_asn1_tab.c;
+ common = commands/appendedsig/pkix_asn1_tab.c;
+ cflags = '$(CFLAGS_POSIX)';
+ cppflags = '-I$(srcdir)/lib/posix_wrap';
+};
+
module = {
name = verifiers;
common = commands/verifiers.c;
diff --git a/grub-core/commands/appendedsig/appendedsig.c b/grub-core/commands/appendedsig/appendedsig.c
new file mode 100644
index 00000000000..1fbc942254a
--- /dev/null
+++ b/grub-core/commands/appendedsig/appendedsig.c
@@ -0,0 +1,644 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2020 IBM Corporation.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/file.h>
+#include <grub/command.h>
+#include <grub/crypto.h>
+#include <grub/pkcs1_v15.h>
+#include <grub/i18n.h>
+#include <grub/gcrypt/gcrypt.h>
+#include <grub/kernel.h>
+#include <grub/extcmd.h>
+#include <grub/verify.h>
+#include <grub/libtasn1.h>
+#include <grub/env.h>
+
+#include "appendedsig.h"
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+const char magic[] = "~Module signature appended~\n";
+
+/*
+ * This structure is extracted from scripts/sign-file.c in the linux kernel
+ * source. It was licensed as LGPLv2.1+, which is GPLv3+ compatible.
+ */
+struct module_signature
+{
+ grub_uint8_t algo; /* Public-key crypto algorithm [0] */
+ grub_uint8_t hash; /* Digest algorithm [0] */
+ grub_uint8_t id_type; /* Key identifier type [PKEY_ID_PKCS7] */
+ grub_uint8_t signer_len; /* Length of signer's name [0] */
+ grub_uint8_t key_id_len; /* Length of key identifier [0] */
+ grub_uint8_t __pad[3];
+ grub_uint32_t sig_len; /* Length of signature data */
+} GRUB_PACKED;
+
+
+/* This represents an entire, parsed, appended signature */
+struct grub_appended_signature
+{
+ grub_size_t signature_len; /* Length of PKCS#7 data +
+ * metadata + magic */
+
+ struct module_signature sig_metadata; /* Module signature metadata */
+ struct pkcs7_signedData pkcs7; /* Parsed PKCS#7 data */
+};
+
+/* Trusted certificates for verifying appended signatures */
+struct x509_certificate *grub_trusted_key;
+
+/*
+ * Force gcry_rsa to be a module dependency.
+ *
+ * If we use grub_crypto_pk_rsa, then then the gcry_rsa module won't be built
+ * in if you add 'appendedsig' to grub-install --modules. You would need to
+ * add 'gcry_rsa' too. That's confusing and seems suboptimal, especially when
+ * we only support RSA.
+ *
+ * Dynamic loading also causes some concerns. We can't load gcry_rsa from the
+ * the filesystem after we install the verifier - we won't be able to verify
+ * it without having it already present. We also shouldn't load it before we
+ * install the verifier, because that would mean it wouldn't be verified - an
+ * attacker could insert any code they wanted into the module.
+ *
+ * So instead, reference the internal symbol from gcry_rsa. That creates a
+ * direct dependency on gcry_rsa, so it will be built in when this module
+ * is built in. Being built in (assuming the core image is itself signed!)
+ * also resolves our concerns about loading from the filesystem.
+ */
+extern gcry_pk_spec_t _gcry_pubkey_spec_rsa;
+
+static int check_sigs = 0;
+
+static char *
+grub_env_write_sec (struct grub_env_var *var __attribute__((unused)),
+ const char *val)
+{
+ check_sigs = (*val == '1') || (*val == 'e');
+ return grub_strdup (check_sigs ? "enforce" : "no");
+}
+
+static grub_err_t
+read_cert_from_file (grub_file_t f, struct x509_certificate *certificate)
+{
+ grub_err_t err;
+ grub_uint8_t *buf = NULL;
+ grub_ssize_t read_size;
+ grub_off_t total_read_size = 0;
+ grub_off_t file_size = grub_file_size (f);
+
+
+ if (file_size == GRUB_FILE_SIZE_UNKNOWN)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ N_("Cannot parse a certificate file of unknown size"));
+
+ buf = grub_zalloc (file_size);
+ if (!buf)
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+ N_("Could not allocate buffer for certificate file contents"));
+
+ while (total_read_size < file_size)
+ {
+ read_size =
+ grub_file_read (f, &buf[total_read_size],
+ file_size - total_read_size);
+ if (read_size < 0)
+ {
+ err = grub_error (GRUB_ERR_READ_ERROR,
+ N_("Error reading certificate file"));
+ goto cleanup_buf;
+ }
+ total_read_size += read_size;
+ }
+
+ err = certificate_import (buf, total_read_size, certificate);
+ if (err != GRUB_ERR_NONE)
+ goto cleanup_buf;
+
+ return GRUB_ERR_NONE;
+
+cleanup_buf:
+ grub_free (buf);
+ return err;
+}
+
+static grub_err_t
+extract_appended_signature (grub_uint8_t * buf, grub_size_t bufsize,
+ struct grub_appended_signature *sig)
+{
+ grub_err_t err;
+ grub_size_t pkcs7_size;
+ grub_size_t remaining_len;
+ grub_uint8_t *appsigdata = buf + bufsize - grub_strlen (magic);
+
+ if (bufsize < grub_strlen (magic))
+ return grub_error (GRUB_ERR_BAD_SIGNATURE,
+ N_("File too short for signature magic"));
+
+ if (grub_memcmp (appsigdata, (grub_uint8_t *) magic, grub_strlen (magic)))
+ return grub_error (GRUB_ERR_BAD_SIGNATURE,
+ N_("Missing or invalid signature magic"));
+
+ remaining_len = bufsize - grub_strlen (magic);
+
+ if (remaining_len < sizeof (struct module_signature))
+ return grub_error (GRUB_ERR_BAD_SIGNATURE,
+ N_("File too short for signature metadata"));
+
+ appsigdata -= sizeof (struct module_signature);
+
+ /* extract the metadata */
+ grub_memcpy (&(sig->sig_metadata), appsigdata,
+ sizeof (struct module_signature));
+
+ remaining_len -= sizeof (struct module_signature);
+
+ if (sig->sig_metadata.id_type != 2)
+ return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("Wrong signature type"));
+
+#ifdef GRUB_TARGET_WORDS_BIGENDIAN
+ pkcs7_size = sig->sig_metadata.sig_len;
+#else
+ pkcs7_size = __builtin_bswap32 (sig->sig_metadata.sig_len);
+#endif
+
+ if (pkcs7_size > remaining_len)
+ return grub_error (GRUB_ERR_BAD_SIGNATURE,
+ N_("File too short for PKCS#7 message"));
+
+ grub_dprintf ("appendedsig", "sig len %" PRIuGRUB_SIZE "\n", pkcs7_size);
+
+ sig->signature_len =
+ grub_strlen (magic) + sizeof (struct module_signature) + pkcs7_size;
+
+ /* rewind pointer and parse pkcs7 data */
+ appsigdata -= pkcs7_size;
+
+ err = parse_pkcs7_signedData (appsigdata, pkcs7_size, &sig->pkcs7);
+ if (err != GRUB_ERR_NONE)
+ return err;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_verify_appended_signature (grub_uint8_t * buf, grub_size_t bufsize)
+{
+ grub_err_t err = GRUB_ERR_NONE;
+ grub_size_t datasize;
+ void *context;
+ unsigned char *hash;
+ gcry_mpi_t hashmpi;
+ gcry_err_code_t rc;
+ struct x509_certificate *pk;
+ struct grub_appended_signature sig;
+
+ if (!grub_trusted_key)
+ return grub_error (GRUB_ERR_BAD_SIGNATURE,
+ N_("No trusted keys to verify against"));
+
+ err = extract_appended_signature (buf, bufsize, &sig);
+ if (err != GRUB_ERR_NONE)
+ return err;
+
+ datasize = bufsize - sig.signature_len;
+
+ context = grub_zalloc (sig.pkcs7.hash->contextsize);
+ if (!context)
+ return grub_errno;
+
+ sig.pkcs7.hash->init (context);
+ sig.pkcs7.hash->write (context, buf, datasize);
+ sig.pkcs7.hash->final (context);
+ hash = sig.pkcs7.hash->read (context);
+ grub_dprintf ("appendedsig",
+ "data size %" PRIxGRUB_SIZE ", hash %02x%02x%02x%02x...\n",
+ datasize, hash[0], hash[1], hash[2], hash[3]);
+
+ err = GRUB_ERR_BAD_SIGNATURE;
+ for (pk = grub_trusted_key; pk; pk = pk->next)
+ {
+ rc = grub_crypto_rsa_pad (&hashmpi, hash, sig.pkcs7.hash, pk->mpis[0]);
+ if (rc)
+ {
+ err = grub_error (GRUB_ERR_BAD_SIGNATURE,
+ N_("Error padding hash for RSA verification: %d"),
+ rc);
+ goto cleanup;
+ }
+
+ rc = _gcry_pubkey_spec_rsa.verify (0, hashmpi, &sig.pkcs7.sig_mpi,
+ pk->mpis, NULL, NULL);
+ gcry_mpi_release (hashmpi);
+
+ if (rc == 0)
+ {
+ grub_dprintf ("appendedsig", "verify with key '%s' succeeded\n",
+ pk->subject);
+ err = GRUB_ERR_NONE;
+ break;
+ }
+
+ grub_dprintf ("appendedsig", "verify with key '%s' failed with %d\n",
+ pk->subject, rc);
+ }
+
+ /* If we didn't verify, provide a neat message */
+ if (err != GRUB_ERR_NONE)
+ err = grub_error (GRUB_ERR_BAD_SIGNATURE,
+ N_("Failed to verify signature against a trusted key"));
+
+cleanup:
+ grub_free (context);
+ pkcs7_signedData_release (&sig.pkcs7);
+
+ return err;
+}
+
+static grub_err_t
+grub_cmd_verify_signature (grub_command_t cmd __attribute__((unused)),
+ int argc, char **args)
+{
+ grub_file_t f;
+ grub_err_t err = GRUB_ERR_NONE;
+ grub_uint8_t *data;
+ grub_ssize_t read_size;
+ grub_off_t file_size, total_read_size = 0;
+
+ if (argc < 1)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+ grub_dprintf ("appendedsig", "verifying %s\n", args[0]);
+
+ f = grub_file_open (args[0], GRUB_FILE_TYPE_VERIFY_SIGNATURE);
+ if (!f)
+ {
+ err = grub_errno;
+ goto cleanup;
+ }
+
+ file_size = grub_file_size (f);
+ if (file_size == GRUB_FILE_SIZE_UNKNOWN)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ N_("Cannot verify the signature of a file of unknown size"));
+
+ data = grub_malloc (file_size);
+ if (!data)
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+ N_("Could not allocate data buffer size "
+ PRIuGRUB_UINT64_T " for verification"), file_size);
+
+ while (total_read_size < file_size)
+ {
+ read_size =
+ grub_file_read (f, &data[total_read_size],
+ file_size - total_read_size);
+ if (read_size < 0)
+ {
+ err = grub_error (GRUB_ERR_READ_ERROR,
+ N_("Error reading file to verify"));
+ goto cleanup_data;
+ }
+ total_read_size += read_size;
+ }
+
+ err = grub_verify_appended_signature (data, file_size);
+
+cleanup_data:
+ grub_free (data);
+cleanup:
+ if (f)
+ grub_file_close (f);
+ return err;
+}
+
+static grub_err_t
+grub_cmd_distrust (grub_command_t cmd __attribute__((unused)),
+ int argc, char **args)
+{
+ unsigned long cert_num, i;
+ struct x509_certificate *cert, *prev;
+
+ if (argc != 1)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("One argument expected"));
+
+ grub_errno = GRUB_ERR_NONE;
+ cert_num = grub_strtoul (args[0], NULL, 10);
+ if (grub_errno != GRUB_ERR_NONE)
+ return grub_errno;
+
+ if (cert_num < 1)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ N_("Certificate number too small - numbers start at 1"));
+
+ if (cert_num == 1)
+ {
+ cert = grub_trusted_key;
+ grub_trusted_key = cert->next;
+
+ certificate_release (cert);
+ grub_free (cert);
+ return GRUB_ERR_NONE;
+ }
+ i = 2;
+ prev = grub_trusted_key;
+ cert = grub_trusted_key->next;
+ while (cert)
+ {
+ if (i == cert_num)
+ {
+ prev->next = cert->next;
+ certificate_release (cert);
+ grub_free (cert);
+ return GRUB_ERR_NONE;
+ }
+ i++;
+ prev = cert;
+ cert = cert->next;
+ }
+
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ N_("No certificate number %d found - only %d certificates in the store"),
+ cert_num, i - 1);
+}
+
+static grub_err_t
+grub_cmd_trust (grub_command_t cmd __attribute__((unused)),
+ int argc, char **args)
+{
+ grub_file_t certf;
+ struct x509_certificate *cert = NULL;
+ grub_err_t err;
+
+ if (argc != 1)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+ certf = grub_file_open (args[0],
+ GRUB_FILE_TYPE_CERTIFICATE_TRUST
+ | GRUB_FILE_TYPE_NO_DECOMPRESS);
+ if (!certf)
+ return grub_errno;
+
+
+ cert = grub_zalloc (sizeof (struct x509_certificate));
+ if (!cert)
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+ N_("Could not allocate memory for certificate"));
+
+ err = read_cert_from_file (certf, cert);
+ grub_file_close (certf);
+ if (err != GRUB_ERR_NONE)
+ {
+ grub_free (cert);
+ return err;
+ }
+ grub_dprintf ("appendedsig", "Loaded certificate with CN: %s\n",
+ cert->subject);
+
+ cert->next = grub_trusted_key;
+ grub_trusted_key = cert;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_list (grub_command_t cmd __attribute__((unused)),
+ int argc __attribute__((unused)),
+ char **args __attribute__((unused)))
+{
+ struct x509_certificate *cert;
+ int cert_num = 1;
+ grub_size_t i;
+
+ for (cert = grub_trusted_key; cert; cert = cert->next)
+ {
+ grub_printf (N_("Certificate %d:\n"), cert_num);
+
+ grub_printf (N_("\tSerial: "));
+ for (i = 0; i < cert->serial_len - 1; i++)
+ {
+ grub_printf ("%02x:", cert->serial[i]);
+ }
+ grub_printf ("%02x\n", cert->serial[cert->serial_len - 1]);
+
+ grub_printf ("\tCN: %s\n\n", cert->subject);
+ cert_num++;
+
+ }
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+appendedsig_init (grub_file_t io, enum grub_file_type type,
+ void **context __attribute__((unused)),
+ enum grub_verify_flags *flags)
+{
+ const char *dangerous_mod;
+
+ if (!check_sigs)
+ {
+ *flags = GRUB_VERIFY_FLAGS_SKIP_VERIFICATION;
+ return GRUB_ERR_NONE;
+ }
+
+ switch (type & GRUB_FILE_TYPE_MASK)
+ {
+ case GRUB_FILE_TYPE_GRUB_MODULE:
+ if (grub_is_dangerous_module (io))
+ return grub_error (GRUB_ERR_ACCESS_DENIED,
+ N_("module cannot be loaded in appended signature mode: %s"),
+ io->name);
+
+ *flags = GRUB_VERIFY_FLAGS_SINGLE_CHUNK;
+ return GRUB_ERR_NONE;
+
+ case GRUB_FILE_TYPE_ACPI_TABLE:
+ case GRUB_FILE_TYPE_DEVICE_TREE_IMAGE:
+ *flags = GRUB_VERIFY_FLAGS_DEFER_AUTH;
+ return GRUB_ERR_NONE;
+
+ case GRUB_FILE_TYPE_CERTIFICATE_TRUST:
+ /*
+ * This is a certificate to add to trusted keychain.
+ *
+ * This needs to be verified or blocked. Ideally we'd write an x509
+ * verifier, but we lack the hubris required to take this on. Instead,
+ * require that it have an appended signature.
+ */
+
+ /* Fall through */
+
+ case GRUB_FILE_TYPE_LINUX_KERNEL:
+ case GRUB_FILE_TYPE_MULTIBOOT_KERNEL:
+ case GRUB_FILE_TYPE_BSD_KERNEL:
+ case GRUB_FILE_TYPE_XNU_KERNEL:
+ case GRUB_FILE_TYPE_PLAN9_KERNEL:
+
+ dangerous_mod = grub_dangerous_module_loaded ();
+ if (dangerous_mod)
+ return grub_error (GRUB_ERR_ACCESS_DENIED,
+ N_("cannot proceed due to dangerous module in memory: %s"),
+ dangerous_mod);
+
+ *flags = GRUB_VERIFY_FLAGS_SINGLE_CHUNK;
+ return GRUB_ERR_NONE;
+
+ default:
+ /*
+ * powerpc only supports the linux loader. If you support more,
+ * (especially chain loaded binaries) make sure they're checked!
+ */
+ *flags = GRUB_VERIFY_FLAGS_SKIP_VERIFICATION;
+ return GRUB_ERR_NONE;
+ }
+}
+
+static grub_err_t
+appendedsig_write (void *ctxt __attribute__((unused)),
+ void *buf, grub_size_t size)
+{
+ return grub_verify_appended_signature (buf, size);
+}
+
+struct grub_file_verifier grub_appendedsig_verifier = {
+ .name = "appendedsig",
+ .init = appendedsig_init,
+ .write = appendedsig_write,
+};
+
+static grub_ssize_t
+pseudo_read (struct grub_file *file, char *buf, grub_size_t len)
+{
+ grub_memcpy (buf, (grub_uint8_t *) file->data + file->offset, len);
+ return len;
+}
+
+/* Filesystem descriptor. */
+static struct grub_fs pseudo_fs = {
+ .name = "pseudo",
+ .fs_read = pseudo_read
+};
+
+static grub_command_t cmd_verify, cmd_list, cmd_distrust, cmd_trust;
+
+GRUB_MOD_INIT (appendedsig)
+{
+ int rc;
+ struct grub_module_header *header;
+ const char *val;
+
+ val = grub_env_get ("check_appended_signatures");
+ grub_dprintf ("appendedsig", "check_appended_signatures='%s'\n", val);
+
+ if (val && (val[0] == '1' || val[0] == 'e'))
+ check_sigs = 1;
+ else
+ check_sigs = 0;
+
+ grub_trusted_key = NULL;
+
+ grub_register_variable_hook ("check_appended_signatures", 0,
+ grub_env_write_sec);
+ grub_env_export ("check_appended_signatures");
+
+ rc = asn1_init ();
+ if (rc)
+ grub_fatal ("Error initing ASN.1 data structures: %d: %s\n", rc,
+ asn1_strerror (rc));
+
+ FOR_MODULES (header)
+ {
+ struct grub_file pseudo_file;
+ struct x509_certificate *pk = NULL;
+ grub_err_t err;
+
+ /* Not an ELF module, skip. */
+ if (header->type != OBJ_TYPE_X509_PUBKEY)
+ continue;
+
+ grub_memset (&pseudo_file, 0, sizeof (pseudo_file));
+ pseudo_file.fs = &pseudo_fs;
+ pseudo_file.size = header->size - sizeof (struct grub_module_header);
+ pseudo_file.data = (char *) header + sizeof (struct grub_module_header);
+
+ grub_dprintf ("appendedsig",
+ "Found an x509 key, size=%" PRIuGRUB_UINT64_T "\n",
+ pseudo_file.size);
+
+ pk = grub_zalloc (sizeof (struct x509_certificate));
+ if (!pk)
+ {
+ grub_fatal ("Out of memory loading initial certificates");
+ }
+
+ err = read_cert_from_file (&pseudo_file, pk);
+ if (err != GRUB_ERR_NONE)
+ grub_fatal ("Error loading initial key: %s", grub_errmsg);
+
+ grub_dprintf ("appendedsig", "loaded certificate CN='%s'\n", pk->subject);
+
+ pk->next = grub_trusted_key;
+ grub_trusted_key = pk;
+ }
+
+ if (!val || val[0] == '\0')
+ {
+ grub_env_set ("check_appended_signatures",
+ grub_trusted_key ? "enforce" : "no");
+ }
+
+ cmd_trust =
+ grub_register_command ("trust_certificate", grub_cmd_trust,
+ N_("X509_CERTIFICATE"),
+ N_("Add X509_CERTIFICATE to trusted certificates."));
+ cmd_list =
+ grub_register_command ("list_certificates", grub_cmd_list, 0,
+ N_("Show the list of trusted x509 certificates."));
+ cmd_verify =
+ grub_register_command ("verify_appended", grub_cmd_verify_signature,
+ N_("FILE"),
+ N_("Verify FILE against the trusted x509 certificates."));
+ cmd_distrust =
+ grub_register_command ("distrust_certificate", grub_cmd_distrust,
+ N_("CERT_NUMBER"),
+ N_("Remove CERT_NUMBER (as listed by list_certificates) from trusted certificates."));
+
+ grub_verifier_register (&grub_appendedsig_verifier);
+ grub_dl_set_persistent (mod);
+}
+
+GRUB_MOD_FINI (appendedsig)
+{
+ /*
+ * grub_dl_set_persistent should prevent this from actually running, but
+ * it does still run under emu.
+ */
+
+ grub_verifier_unregister (&grub_appendedsig_verifier);
+ grub_unregister_command (cmd_verify);
+ grub_unregister_command (cmd_list);
+ grub_unregister_command (cmd_trust);
+ grub_unregister_command (cmd_distrust);
+}
diff --git a/include/grub/file.h b/include/grub/file.h
index 31567483ccf..96827a4f896 100644
--- a/include/grub/file.h
+++ b/include/grub/file.h
@@ -80,6 +80,8 @@ enum grub_file_type
GRUB_FILE_TYPE_PUBLIC_KEY,
/* File holding public key to add to trused keys. */
GRUB_FILE_TYPE_PUBLIC_KEY_TRUST,
+ /* File holding x509 certificiate to add to trusted keys. */
+ GRUB_FILE_TYPE_CERTIFICATE_TRUST,
/* File of which we intend to print a blocklist to the user. */
GRUB_FILE_TYPE_PRINT_BLOCKLIST,
/* File we intend to use for test loading or testing speed. */

897
0302-appended-signatures-verification-tests.patch Normal file
View File

@ -0,0 +1,897 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Thu, 30 Jul 2020 01:31:02 +1000
Subject: [PATCH] appended signatures: verification tests
These tests are run through all_functional_test and test a range
of commands and behaviours.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/Makefile.core.def | 6 +
grub-core/tests/appended_signature_test.c | 281 +++++++++++++++
grub-core/tests/lib/functional_test.c | 1 +
grub-core/tests/appended_signatures.h | 557 ++++++++++++++++++++++++++++++
4 files changed, 845 insertions(+)
create mode 100644 grub-core/tests/appended_signature_test.c
create mode 100644 grub-core/tests/appended_signatures.h
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 30bd9a4a587..640de1b299b 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -2138,6 +2138,12 @@ module = {
common = tests/setjmp_test.c;
};
+module = {
+ name = appended_signature_test;
+ common = tests/appended_signature_test.c;
+ common = tests/appended_signatures.h;
+};
+
module = {
name = signature_test;
common = tests/signature_test.c;
diff --git a/grub-core/tests/appended_signature_test.c b/grub-core/tests/appended_signature_test.c
new file mode 100644
index 00000000000..88a485200d8
--- /dev/null
+++ b/grub-core/tests/appended_signature_test.c
@@ -0,0 +1,281 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2020 IBM Corporation.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/time.h>
+#include <grub/misc.h>
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/env.h>
+#include <grub/test.h>
+#include <grub/mm.h>
+#include <grub/procfs.h>
+#include <grub/file.h>
+
+#include "appended_signatures.h"
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define DEFINE_TEST_CASE(case_name) \
+static char * \
+get_ ## case_name (grub_size_t *sz) \
+{ \
+ char *ret; \
+ *sz = case_name ## _len; \
+ ret = grub_malloc (*sz); \
+ if (ret) \
+ grub_memcpy (ret, case_name, *sz); \
+ return ret; \
+} \
+\
+static struct grub_procfs_entry case_name ## _entry = \
+{ \
+ .name = #case_name, \
+ .get_contents = get_ ## case_name \
+}
+
+#define DO_TEST(case_name, is_valid) \
+{ \
+ grub_procfs_register (#case_name, &case_name ## _entry); \
+ do_verify ("(proc)/" #case_name, is_valid); \
+ grub_procfs_unregister (&case_name ## _entry); \
+}
+
+
+DEFINE_TEST_CASE (hi_signed);
+DEFINE_TEST_CASE (hi_signed_sha256);
+DEFINE_TEST_CASE (hj_signed);
+DEFINE_TEST_CASE (short_msg);
+DEFINE_TEST_CASE (unsigned_msg);
+DEFINE_TEST_CASE (hi_signed_2nd);
+
+static char *
+get_certificate_der (grub_size_t * sz)
+{
+ char *ret;
+ *sz = certificate_der_len;
+ ret = grub_malloc (*sz);
+ if (ret)
+ grub_memcpy (ret, certificate_der, *sz);
+ return ret;
+}
+
+static struct grub_procfs_entry certificate_der_entry = {
+ .name = "certificate.der",
+ .get_contents = get_certificate_der
+};
+
+static char *
+get_certificate2_der (grub_size_t * sz)
+{
+ char *ret;
+ *sz = certificate2_der_len;
+ ret = grub_malloc (*sz);
+ if (ret)
+ grub_memcpy (ret, certificate2_der, *sz);
+ return ret;
+}
+
+static struct grub_procfs_entry certificate2_der_entry = {
+ .name = "certificate2.der",
+ .get_contents = get_certificate2_der
+};
+
+static char *
+get_certificate_printable_der (grub_size_t * sz)
+{
+ char *ret;
+ *sz = certificate_printable_der_len;
+ ret = grub_malloc (*sz);
+ if (ret)
+ grub_memcpy (ret, certificate_printable_der, *sz);
+ return ret;
+}
+
+static struct grub_procfs_entry certificate_printable_der_entry = {
+ .name = "certificate_printable.der",
+ .get_contents = get_certificate_printable_der
+};
+
+
+static void
+do_verify (const char *f, int is_valid)
+{
+ grub_command_t cmd;
+ char *args[] = { (char *) f, NULL };
+ grub_err_t err;
+
+ cmd = grub_command_find ("verify_appended");
+ if (!cmd)
+ {
+ grub_test_assert (0, "can't find command `%s'", "verify_appended");
+ return;
+ }
+ err = (cmd->func) (cmd, 1, args);
+ if (is_valid)
+ {
+ grub_test_assert (err == GRUB_ERR_NONE,
+ "verification of %s failed: %d: %s", f, grub_errno,
+ grub_errmsg);
+ }
+ else
+ {
+ grub_test_assert (err == GRUB_ERR_BAD_SIGNATURE,
+ "verification of %s unexpectedly succeeded", f);
+ }
+ grub_errno = GRUB_ERR_NONE;
+
+}
+
+static void
+appended_signature_test (void)
+{
+ grub_command_t cmd_trust, cmd_distrust;
+ char *trust_args[] = { (char *) "(proc)/certificate.der", NULL };
+ char *trust_args2[] = { (char *) "(proc)/certificate2.der", NULL };
+ char *trust_args_printable[] = { (char *) "(proc)/certificate_printable.der",
+ NULL };
+ char *distrust_args[] = { (char *) "1", NULL };
+ char *distrust2_args[] = { (char *) "2", NULL };
+ grub_err_t err;
+
+ grub_procfs_register ("certificate.der", &certificate_der_entry);
+ grub_procfs_register ("certificate2.der", &certificate2_der_entry);
+ grub_procfs_register ("certificate_printable.der",
+ &certificate_printable_der_entry);
+
+ cmd_trust = grub_command_find ("trust_certificate");
+ if (!cmd_trust)
+ {
+ grub_test_assert (0, "can't find command `%s'", "trust_certificate");
+ return;
+ }
+ err = (cmd_trust->func) (cmd_trust, 1, trust_args);
+
+ grub_test_assert (err == GRUB_ERR_NONE,
+ "loading certificate failed: %d: %s", grub_errno,
+ grub_errmsg);
+
+ /* If we have no certificate the remainder of the tests are meaningless */
+ if (err != GRUB_ERR_NONE)
+ return;
+
+ /*
+ * Reload the command: this works around some 'interesting' behaviour in the
+ * dynamic command dispatcher. The first time you call cmd->func you get a
+ * dispatcher that loads the module, finds the real cmd, calls it, and then
+ * releases some internal storage. This means it's not safe to call a second
+ * time and we need to reload it.
+ */
+ cmd_trust = grub_command_find ("trust_certificate");
+
+ DO_TEST (hi_signed, 1);
+ DO_TEST (hi_signed_sha256, 1);
+ DO_TEST (hj_signed, 0);
+ DO_TEST (short_msg, 0);
+ DO_TEST (unsigned_msg, 0);
+
+ /*
+ * in enforcing mode, we shouldn't be able to load a certificate that isn't
+ * signed by an existing trusted key.
+ *
+ * However, procfs files automatically skip the verification test, so we can't
+ * easily test this.
+ */
+
+ /*
+ * verify that testing with 2 trusted certs works
+ */
+ DO_TEST (hi_signed_2nd, 0);
+
+ err = (cmd_trust->func) (cmd_trust, 1, trust_args2);
+
+ grub_test_assert (err == GRUB_ERR_NONE,
+ "loading certificate 2 failed: %d: %s", grub_errno,
+ grub_errmsg);
+
+ if (err != GRUB_ERR_NONE)
+ return;
+
+ DO_TEST (hi_signed_2nd, 1);
+ DO_TEST (hi_signed, 1);
+
+ /*
+ * Check certificate removal. They're added to the _top_ of the list and
+ * removed by position in the list. Current the list looks like [#2, #1].
+ *
+ * First test removing the second certificate in the list, which is
+ * certificate #1, giving us just [#2].
+ */
+ cmd_distrust = grub_command_find ("distrust_certificate");
+ if (!cmd_distrust)
+ {
+ grub_test_assert (0, "can't find command `%s'", "distrust_certificate");
+ return;
+ }
+
+ err = (cmd_distrust->func) (cmd_distrust, 1, distrust2_args);
+ grub_test_assert (err == GRUB_ERR_NONE,
+ "distrusting certificate 1 failed: %d: %s", grub_errno,
+ grub_errmsg);
+ DO_TEST (hi_signed_2nd, 1);
+ DO_TEST (hi_signed, 0);
+
+ /*
+ * Now reload certificate #1. This will make the list look like [#1, #2]
+ */
+ err = (cmd_trust->func) (cmd_trust, 1, trust_args);
+
+ grub_test_assert (err == GRUB_ERR_NONE,
+ "reloading certificate 1 failed: %d: %s", grub_errno,
+ grub_errmsg);
+ DO_TEST (hi_signed, 1);
+
+ /* Remove the first certificate in the list, giving us just [#2] */
+ err = (cmd_distrust->func) (cmd_distrust, 1, distrust_args);
+ grub_test_assert (err == GRUB_ERR_NONE,
+ "distrusting certificate 1 (first time) failed: %d: %s",
+ grub_errno, grub_errmsg);
+ DO_TEST (hi_signed_2nd, 1);
+ DO_TEST (hi_signed, 0);
+
+ /*
+ * Remove the first certificate again, giving an empty list.
+ *
+ * verify_appended should fail if there are no certificates to verify against.
+ */
+ err = (cmd_distrust->func) (cmd_distrust, 1, distrust_args);
+ grub_test_assert (err == GRUB_ERR_NONE,
+ "distrusting certificate 1 (second time) failed: %d: %s",
+ grub_errno, grub_errmsg);
+ DO_TEST (hi_signed_2nd, 0);
+
+ /*
+ * Lastly, check a certificate that uses printableString rather than
+ * utf8String loads properly.
+ */
+ err = (cmd_trust->func) (cmd_trust, 1, trust_args_printable);
+ grub_test_assert (err == GRUB_ERR_NONE,
+ "distrusting printable certificate failed: %d: %s",
+ grub_errno, grub_errmsg);
+
+ grub_procfs_unregister (&certificate_der_entry);
+ grub_procfs_unregister (&certificate2_der_entry);
+ grub_procfs_unregister (&certificate_printable_der_entry);
+}
+
+GRUB_FUNCTIONAL_TEST (appended_signature_test, appended_signature_test);
diff --git a/grub-core/tests/lib/functional_test.c b/grub-core/tests/lib/functional_test.c
index 96781fb39b5..403fa5c789a 100644
--- a/grub-core/tests/lib/functional_test.c
+++ b/grub-core/tests/lib/functional_test.c
@@ -73,6 +73,7 @@ grub_functional_all_tests (grub_extcmd_context_t ctxt __attribute__ ((unused)),
grub_dl_load ("xnu_uuid_test");
grub_dl_load ("pbkdf2_test");
grub_dl_load ("signature_test");
+ grub_dl_load ("appended_signature_test");
grub_dl_load ("sleep_test");
grub_dl_load ("bswap_test");
grub_dl_load ("ctz_test");
diff --git a/grub-core/tests/appended_signatures.h b/grub-core/tests/appended_signatures.h
new file mode 100644
index 00000000000..aa3dc6278e3
--- /dev/null
+++ b/grub-core/tests/appended_signatures.h
@@ -0,0 +1,557 @@
+unsigned char certificate_der[] = {
+ 0x30, 0x82, 0x03, 0x88, 0x30, 0x82, 0x02, 0x70, 0xa0, 0x03, 0x02, 0x01,
+ 0x02, 0x02, 0x14, 0x25, 0x2e, 0xb8, 0xfd, 0x12, 0x62, 0x2e, 0xcd, 0x5d,
+ 0xa7, 0x53, 0xd2, 0x0b, 0xc2, 0x61, 0x7c, 0x14, 0xe0, 0x0f, 0x5c, 0x30,
+ 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b,
+ 0x05, 0x00, 0x30, 0x49, 0x31, 0x28, 0x30, 0x26, 0x06, 0x03, 0x55, 0x04,
+ 0x03, 0x0c, 0x1f, 0x47, 0x72, 0x75, 0x62, 0x20, 0x41, 0x70, 0x70, 0x65,
+ 0x6e, 0x64, 0x65, 0x64, 0x20, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75,
+ 0x72, 0x65, 0x20, 0x54, 0x65, 0x73, 0x74, 0x20, 0x43, 0x41, 0x31, 0x1d,
+ 0x30, 0x1b, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09,
+ 0x01, 0x16, 0x0e, 0x64, 0x6a, 0x61, 0x40, 0x61, 0x78, 0x74, 0x65, 0x6e,
+ 0x73, 0x2e, 0x6e, 0x65, 0x74, 0x30, 0x20, 0x17, 0x0d, 0x32, 0x30, 0x30,
+ 0x37, 0x30, 0x39, 0x30, 0x36, 0x32, 0x32, 0x30, 0x37, 0x5a, 0x18, 0x0f,
+ 0x32, 0x31, 0x32, 0x30, 0x30, 0x36, 0x31, 0x35, 0x30, 0x36, 0x32, 0x32,
+ 0x30, 0x37, 0x5a, 0x30, 0x52, 0x31, 0x31, 0x30, 0x2f, 0x06, 0x03, 0x55,
+ 0x04, 0x03, 0x0c, 0x28, 0x47, 0x72, 0x75, 0x62, 0x20, 0x41, 0x70, 0x70,
+ 0x65, 0x6e, 0x64, 0x65, 0x64, 0x20, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74,
+ 0x75, 0x72, 0x65, 0x20, 0x54, 0x65, 0x73, 0x74, 0x20, 0x53, 0x69, 0x67,
+ 0x6e, 0x69, 0x6e, 0x67, 0x20, 0x4b, 0x65, 0x79, 0x31, 0x1d, 0x30, 0x1b,
+ 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09, 0x01, 0x16,
+ 0x0e, 0x64, 0x6a, 0x61, 0x40, 0x61, 0x78, 0x74, 0x65, 0x6e, 0x73, 0x2e,
+ 0x6e, 0x65, 0x74, 0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a,
+ 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82,
+ 0x01, 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00,
+ 0xcd, 0xe8, 0x1c, 0x08, 0x68, 0x2e, 0xcb, 0xfe, 0x8c, 0x4b, 0x3b, 0x61,
+ 0xe7, 0x8e, 0x80, 0x58, 0x85, 0x85, 0xea, 0xc8, 0x3b, 0x42, 0xba, 0x72,
+ 0x84, 0x65, 0x20, 0xbc, 0x48, 0xa2, 0x25, 0x49, 0x6e, 0x1c, 0xb9, 0x7d,
+ 0xeb, 0xc1, 0x0c, 0xa8, 0xb7, 0xcc, 0x13, 0x78, 0xba, 0x11, 0xa4, 0x98,
+ 0xd7, 0xd0, 0x7c, 0xdd, 0xf5, 0x5a, 0xb7, 0xcd, 0x31, 0x0e, 0xcd, 0x9e,
+ 0xa7, 0x19, 0xf0, 0xbd, 0x0f, 0xa6, 0xfe, 0x8a, 0x11, 0x97, 0xed, 0x8b,
+ 0xe5, 0x16, 0xa6, 0x21, 0x13, 0x36, 0xad, 0x05, 0x49, 0xec, 0x29, 0x12,
+ 0x38, 0xa7, 0x4b, 0x0f, 0xa1, 0xfb, 0x72, 0xc0, 0xc0, 0x09, 0x67, 0x78,
+ 0xa8, 0xb6, 0xd6, 0x1a, 0x39, 0xc0, 0xa8, 0xbf, 0x5f, 0x14, 0x89, 0x5c,
+ 0xbc, 0x41, 0x0c, 0x0c, 0x5d, 0x42, 0x2e, 0x1c, 0xdf, 0x1f, 0x1d, 0xc9,
+ 0x43, 0x94, 0x5b, 0x6e, 0x8f, 0x15, 0x8c, 0x8f, 0x94, 0x73, 0x4f, 0x97,
+ 0x54, 0xf1, 0x86, 0x8a, 0xbc, 0xe4, 0xe4, 0x93, 0xc1, 0x5e, 0xc2, 0x3e,
+ 0x31, 0x5e, 0xd4, 0x85, 0x57, 0x14, 0xd0, 0x11, 0x07, 0x65, 0xf4, 0x7c,
+ 0x8f, 0x07, 0x57, 0xe1, 0x22, 0xd4, 0x78, 0x47, 0x65, 0x4e, 0xa9, 0xb3,
+ 0xaa, 0xce, 0xc7, 0x36, 0xfe, 0xda, 0x66, 0x02, 0xb6, 0x8d, 0x18, 0x2f,
+ 0x3b, 0x41, 0x8d, 0x02, 0x08, 0x72, 0x4b, 0x69, 0xbd, 0x1e, 0x58, 0xfc,
+ 0x1b, 0x64, 0x04, 0x52, 0x35, 0x35, 0xe2, 0x3d, 0x3e, 0xde, 0xd6, 0x64,
+ 0xf4, 0xec, 0x57, 0x7e, 0x65, 0x59, 0x00, 0xa6, 0xd3, 0x4b, 0x09, 0x93,
+ 0x2a, 0x95, 0x0f, 0x30, 0xb6, 0xa1, 0x8c, 0xe7, 0x8b, 0x49, 0xa4, 0x1d,
+ 0x25, 0x2d, 0x65, 0x48, 0x8a, 0x0f, 0xcf, 0x2a, 0xa2, 0xe1, 0xef, 0x72,
+ 0x92, 0xc3, 0xf5, 0x21, 0x37, 0x83, 0x9b, 0x6d, 0x0b, 0x1b, 0xb3, 0xa2,
+ 0x32, 0x38, 0x11, 0xb1, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x5d, 0x30,
+ 0x5b, 0x30, 0x0c, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04,
+ 0x02, 0x30, 0x00, 0x30, 0x0b, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x04, 0x04,
+ 0x03, 0x02, 0x07, 0x80, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04,
+ 0x16, 0x04, 0x14, 0xe5, 0x2a, 0x4f, 0xf2, 0x84, 0x91, 0x57, 0x91, 0xaf,
+ 0x12, 0xd2, 0xf1, 0xa1, 0x87, 0x73, 0x0f, 0x90, 0x25, 0xa0, 0x7a, 0x30,
+ 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14,
+ 0x56, 0xd1, 0xfd, 0xe2, 0x1e, 0x7e, 0x1c, 0x63, 0x4f, 0x47, 0xdb, 0xe4,
+ 0xc4, 0x51, 0x04, 0x03, 0x9a, 0x48, 0x35, 0x6e, 0x30, 0x0d, 0x06, 0x09,
+ 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03,
+ 0x82, 0x01, 0x01, 0x00, 0x65, 0x82, 0xd5, 0x88, 0x30, 0xe2, 0x2c, 0x47,
+ 0xf3, 0x31, 0x39, 0xa1, 0x75, 0x9a, 0xb0, 0x8a, 0x6c, 0x4b, 0xac, 0xdf,
+ 0x09, 0x7b, 0x90, 0xb6, 0x9e, 0x76, 0x62, 0x94, 0xc1, 0x3a, 0x99, 0x49,
+ 0x68, 0x29, 0x47, 0x42, 0xc3, 0x06, 0xcb, 0x88, 0x75, 0xe6, 0x79, 0x13,
+ 0x8c, 0x4b, 0x49, 0x6a, 0xb5, 0x56, 0x95, 0xc0, 0x42, 0x21, 0x9b, 0xd4,
+ 0x61, 0xd0, 0x02, 0x41, 0xdd, 0x20, 0x61, 0xe5, 0x91, 0xdf, 0x75, 0x00,
+ 0x25, 0x0e, 0x99, 0x65, 0x5c, 0x54, 0x49, 0x32, 0xa3, 0xe2, 0xcd, 0xa1,
+ 0x5f, 0x40, 0xf3, 0xc5, 0x81, 0xd9, 0x3c, 0xa3, 0x63, 0x5a, 0x38, 0x79,
+ 0xab, 0x77, 0x98, 0xde, 0x8f, 0x4e, 0x9e, 0x26, 0xbc, 0x4e, 0x80, 0x9e,
+ 0x8f, 0xbe, 0xf1, 0x00, 0xb3, 0x78, 0xb9, 0x4b, 0x1d, 0xc7, 0xa4, 0x83,
+ 0x59, 0x56, 0x11, 0xd1, 0x11, 0x1e, 0x50, 0x39, 0xd5, 0x78, 0x14, 0xf3,
+ 0xb9, 0x1d, 0xda, 0xe4, 0xc4, 0x63, 0x74, 0x26, 0xab, 0xa3, 0xfd, 0x9d,
+ 0x58, 0xa2, 0xee, 0x7b, 0x28, 0x34, 0xa3, 0xbe, 0x85, 0x7e, 0xaa, 0x97,
+ 0xb7, 0x5b, 0x9d, 0xa9, 0x4d, 0x96, 0xdb, 0x6b, 0x21, 0xe1, 0x96, 0x5d,
+ 0xc7, 0xad, 0x23, 0x03, 0x9a, 0x16, 0xdb, 0xa4, 0x1f, 0x63, 0xef, 0xaf,
+ 0x1e, 0x4f, 0xf8, 0x27, 0xdc, 0x4b, 0xfc, 0x2b, 0x68, 0x2e, 0xa0, 0xd3,
+ 0xae, 0xf2, 0xce, 0xf5, 0xfc, 0x97, 0x92, 0xd2, 0x29, 0x0f, 0x4f, 0x4b,
+ 0x29, 0xeb, 0x06, 0xcb, 0xf8, 0x21, 0x6e, 0xbc, 0x8b, 0x5c, 0xc5, 0xc9,
+ 0xf7, 0xe2, 0x7c, 0x47, 0xcd, 0x43, 0x98, 0xc4, 0xa3, 0x9a, 0xd7, 0x3e,
+ 0xdc, 0x01, 0x13, 0x28, 0x96, 0xc4, 0x60, 0x83, 0xe2, 0x79, 0xa1, 0x46,
+ 0xef, 0xf5, 0xa4, 0x7b, 0x00, 0xe3, 0x3d, 0x7d, 0xbc, 0xa8, 0x98, 0x49,
+ 0xa8, 0xcf, 0x3b, 0x41, 0xb6, 0x09, 0x97, 0x07
+};
+unsigned int certificate_der_len = 908;
+
+unsigned char hi_signed[] = {
+ 0x68, 0x69, 0x0a, 0x30, 0x82, 0x01, 0xc0, 0x06, 0x09, 0x2a, 0x86, 0x48,
+ 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x01, 0xb1, 0x30, 0x82,
+ 0x01, 0xad, 0x02, 0x01, 0x01, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60,
+ 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x30, 0x0b, 0x06, 0x09,
+ 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0x31, 0x82, 0x01,
+ 0x8a, 0x30, 0x82, 0x01, 0x86, 0x02, 0x01, 0x01, 0x30, 0x61, 0x30, 0x49,
+ 0x31, 0x28, 0x30, 0x26, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x1f, 0x47,
+ 0x72, 0x75, 0x62, 0x20, 0x41, 0x70, 0x70, 0x65, 0x6e, 0x64, 0x65, 0x64,
+ 0x20, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x20, 0x54,
+ 0x65, 0x73, 0x74, 0x20, 0x43, 0x41, 0x31, 0x1d, 0x30, 0x1b, 0x06, 0x09,
+ 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09, 0x01, 0x16, 0x0e, 0x64,
+ 0x6a, 0x61, 0x40, 0x61, 0x78, 0x74, 0x65, 0x6e, 0x73, 0x2e, 0x6e, 0x65,
+ 0x74, 0x02, 0x14, 0x25, 0x2e, 0xb8, 0xfd, 0x12, 0x62, 0x2e, 0xcd, 0x5d,
+ 0xa7, 0x53, 0xd2, 0x0b, 0xc2, 0x61, 0x7c, 0x14, 0xe0, 0x0f, 0x5c, 0x30,
+ 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03,
+ 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+ 0x01, 0x05, 0x00, 0x04, 0x82, 0x01, 0x00, 0xc7, 0x69, 0x35, 0x21, 0x66,
+ 0x4d, 0x50, 0xd4, 0x73, 0xde, 0xbd, 0x3a, 0xf6, 0x45, 0xe3, 0xe4, 0xd0,
+ 0xb6, 0xa1, 0xe7, 0xc0, 0xa2, 0xc9, 0xf4, 0xf0, 0x05, 0x8c, 0xa4, 0x16,
+ 0x9e, 0x81, 0x0d, 0x21, 0x68, 0xf3, 0xfe, 0x03, 0x96, 0x77, 0x31, 0x69,
+ 0x01, 0xd8, 0x26, 0xd9, 0x48, 0x95, 0xcf, 0xd1, 0x17, 0xb1, 0x0b, 0x6b,
+ 0x2c, 0xf1, 0xb0, 0xab, 0x65, 0x65, 0x56, 0xf8, 0x0c, 0xa7, 0xf7, 0xbb,
+ 0xf6, 0x5a, 0x55, 0x98, 0x14, 0x07, 0x8d, 0x2a, 0xbc, 0x16, 0x48, 0x94,
+ 0xab, 0x2f, 0x85, 0x97, 0x90, 0x51, 0x78, 0xa0, 0xda, 0x60, 0xb5, 0x41,
+ 0x4b, 0xe8, 0x78, 0xc5, 0xa6, 0x04, 0x9d, 0x54, 0x2a, 0x85, 0xfd, 0x86,
+ 0x0b, 0x6d, 0xc2, 0xd2, 0xad, 0x07, 0xff, 0x16, 0x42, 0x82, 0xe3, 0x5c,
+ 0xaa, 0x22, 0x59, 0x78, 0x92, 0xea, 0x94, 0xc3, 0x41, 0xb7, 0xa1, 0x86,
+ 0x44, 0xea, 0xd1, 0xdb, 0xe5, 0xac, 0x30, 0x32, 0xfb, 0x7d, 0x3f, 0xf7,
+ 0x8b, 0x11, 0x7f, 0x80, 0x3b, 0xe5, 0xc7, 0x82, 0x0f, 0x92, 0x07, 0x14,
+ 0x66, 0x01, 0x6e, 0x85, 0xab, 0x3a, 0x14, 0xcf, 0x76, 0xd1, 0x7e, 0x14,
+ 0x85, 0xca, 0x01, 0x73, 0x72, 0x38, 0xdc, 0xde, 0x30, 0x5c, 0xfb, 0xc0,
+ 0x3d, 0x93, 0xef, 0x9c, 0xbc, 0xf8, 0xcc, 0xd2, 0xbf, 0x47, 0xec, 0xf8,
+ 0x88, 0x9b, 0xe1, 0x43, 0xbe, 0xa7, 0x47, 0x96, 0xb6, 0x5d, 0x46, 0x0e,
+ 0x7a, 0x78, 0x38, 0x19, 0xbc, 0xb5, 0xbc, 0x9b, 0x3c, 0x39, 0x92, 0x70,
+ 0x0d, 0x9d, 0x8a, 0x35, 0xaf, 0xb4, 0x9e, 0xf4, 0xef, 0xc1, 0xb8, 0x25,
+ 0xd0, 0x14, 0x91, 0xd6, 0xc2, 0xb6, 0xc7, 0x3c, 0x72, 0x91, 0x0f, 0xad,
+ 0xde, 0xb2, 0x36, 0xf8, 0x4e, 0x59, 0xd4, 0xa4, 0x21, 0x9f, 0x03, 0x95,
+ 0x48, 0x01, 0xb4, 0x05, 0xc3, 0x39, 0x60, 0x51, 0x08, 0xd0, 0xbe, 0x00,
+ 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xc4, 0x7e,
+ 0x4d, 0x6f, 0x64, 0x75, 0x6c, 0x65, 0x20, 0x73, 0x69, 0x67, 0x6e, 0x61,
+ 0x74, 0x75, 0x72, 0x65, 0x20, 0x61, 0x70, 0x70, 0x65, 0x6e, 0x64, 0x65,
+ 0x64, 0x7e, 0x0a
+};
+unsigned int hi_signed_len = 495;
+
+unsigned char hj_signed[] = {
+ 0x68, 0x6a, 0x0a, 0x30, 0x82, 0x01, 0xc0, 0x06, 0x09, 0x2a, 0x86, 0x48,
+ 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x01, 0xb1, 0x30, 0x82,
+ 0x01, 0xad, 0x02, 0x01, 0x01, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60,
+ 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x30, 0x0b, 0x06, 0x09,
+ 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0x31, 0x82, 0x01,
+ 0x8a, 0x30, 0x82, 0x01, 0x86, 0x02, 0x01, 0x01, 0x30, 0x61, 0x30, 0x49,
+ 0x31, 0x28, 0x30, 0x26, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x1f, 0x47,
+ 0x72, 0x75, 0x62, 0x20, 0x41, 0x70, 0x70, 0x65, 0x6e, 0x64, 0x65, 0x64,
+ 0x20, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x20, 0x54,
+ 0x65, 0x73, 0x74, 0x20, 0x43, 0x41, 0x31, 0x1d, 0x30, 0x1b, 0x06, 0x09,
+ 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09, 0x01, 0x16, 0x0e, 0x64,
+ 0x6a, 0x61, 0x40, 0x61, 0x78, 0x74, 0x65, 0x6e, 0x73, 0x2e, 0x6e, 0x65,
+ 0x74, 0x02, 0x14, 0x25, 0x2e, 0xb8, 0xfd, 0x12, 0x62, 0x2e, 0xcd, 0x5d,
+ 0xa7, 0x53, 0xd2, 0x0b, 0xc2, 0x61, 0x7c, 0x14, 0xe0, 0x0f, 0x5c, 0x30,
+ 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03,
+ 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+ 0x01, 0x05, 0x00, 0x04, 0x82, 0x01, 0x00, 0xc7, 0x69, 0x35, 0x21, 0x66,
+ 0x4d, 0x50, 0xd4, 0x73, 0xde, 0xbd, 0x3a, 0xf6, 0x45, 0xe3, 0xe4, 0xd0,
+ 0xb6, 0xa1, 0xe7, 0xc0, 0xa2, 0xc9, 0xf4, 0xf0, 0x05, 0x8c, 0xa4, 0x16,
+ 0x9e, 0x81, 0x0d, 0x21, 0x68, 0xf3, 0xfe, 0x03, 0x96, 0x77, 0x31, 0x69,
+ 0x01, 0xd8, 0x26, 0xd9, 0x48, 0x95, 0xcf, 0xd1, 0x17, 0xb1, 0x0b, 0x6b,
+ 0x2c, 0xf1, 0xb0, 0xab, 0x65, 0x65, 0x56, 0xf8, 0x0c, 0xa7, 0xf7, 0xbb,
+ 0xf6, 0x5a, 0x55, 0x98, 0x14, 0x07, 0x8d, 0x2a, 0xbc, 0x16, 0x48, 0x94,
+ 0xab, 0x2f, 0x85, 0x97, 0x90, 0x51, 0x78, 0xa0, 0xda, 0x60, 0xb5, 0x41,
+ 0x4b, 0xe8, 0x78, 0xc5, 0xa6, 0x04, 0x9d, 0x54, 0x2a, 0x85, 0xfd, 0x86,
+ 0x0b, 0x6d, 0xc2, 0xd2, 0xad, 0x07, 0xff, 0x16, 0x42, 0x82, 0xe3, 0x5c,
+ 0xaa, 0x22, 0x59, 0x78, 0x92, 0xea, 0x94, 0xc3, 0x41, 0xb7, 0xa1, 0x86,
+ 0x44, 0xea, 0xd1, 0xdb, 0xe5, 0xac, 0x30, 0x32, 0xfb, 0x7d, 0x3f, 0xf7,
+ 0x8b, 0x11, 0x7f, 0x80, 0x3b, 0xe5, 0xc7, 0x82, 0x0f, 0x92, 0x07, 0x14,
+ 0x66, 0x01, 0x6e, 0x85, 0xab, 0x3a, 0x14, 0xcf, 0x76, 0xd1, 0x7e, 0x14,
+ 0x85, 0xca, 0x01, 0x73, 0x72, 0x38, 0xdc, 0xde, 0x30, 0x5c, 0xfb, 0xc0,
+ 0x3d, 0x93, 0xef, 0x9c, 0xbc, 0xf8, 0xcc, 0xd2, 0xbf, 0x47, 0xec, 0xf8,
+ 0x88, 0x9b, 0xe1, 0x43, 0xbe, 0xa7, 0x47, 0x96, 0xb6, 0x5d, 0x46, 0x0e,
+ 0x7a, 0x78, 0x38, 0x19, 0xbc, 0xb5, 0xbc, 0x9b, 0x3c, 0x39, 0x92, 0x70,
+ 0x0d, 0x9d, 0x8a, 0x35, 0xaf, 0xb4, 0x9e, 0xf4, 0xef, 0xc1, 0xb8, 0x25,
+ 0xd0, 0x14, 0x91, 0xd6, 0xc2, 0xb6, 0xc7, 0x3c, 0x72, 0x91, 0x0f, 0xad,
+ 0xde, 0xb2, 0x36, 0xf8, 0x4e, 0x59, 0xd4, 0xa4, 0x21, 0x9f, 0x03, 0x95,
+ 0x48, 0x01, 0xb4, 0x05, 0xc3, 0x39, 0x60, 0x51, 0x08, 0xd0, 0xbe, 0x00,
+ 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xc4, 0x7e,
+ 0x4d, 0x6f, 0x64, 0x75, 0x6c, 0x65, 0x20, 0x73, 0x69, 0x67, 0x6e, 0x61,
+ 0x74, 0x75, 0x72, 0x65, 0x20, 0x61, 0x70, 0x70, 0x65, 0x6e, 0x64, 0x65,
+ 0x64, 0x7e, 0x0a
+};
+unsigned int hj_signed_len = 495;
+
+unsigned char hi_signed_sha256[] = {
+ 0x68, 0x69, 0x0a, 0x30, 0x82, 0x01, 0xc0, 0x06, 0x09, 0x2a, 0x86, 0x48,
+ 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x01, 0xb1, 0x30, 0x82,
+ 0x01, 0xad, 0x02, 0x01, 0x01, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60,
+ 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x30, 0x0b, 0x06, 0x09,
+ 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0x31, 0x82, 0x01,
+ 0x8a, 0x30, 0x82, 0x01, 0x86, 0x02, 0x01, 0x01, 0x30, 0x61, 0x30, 0x49,
+ 0x31, 0x28, 0x30, 0x26, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x1f, 0x47,
+ 0x72, 0x75, 0x62, 0x20, 0x41, 0x70, 0x70, 0x65, 0x6e, 0x64, 0x65, 0x64,
+ 0x20, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x20, 0x54,
+ 0x65, 0x73, 0x74, 0x20, 0x43, 0x41, 0x31, 0x1d, 0x30, 0x1b, 0x06, 0x09,
+ 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09, 0x01, 0x16, 0x0e, 0x64,
+ 0x6a, 0x61, 0x40, 0x61, 0x78, 0x74, 0x65, 0x6e, 0x73, 0x2e, 0x6e, 0x65,
+ 0x74, 0x02, 0x14, 0x25, 0x2e, 0xb8, 0xfd, 0x12, 0x62, 0x2e, 0xcd, 0x5d,
+ 0xa7, 0x53, 0xd2, 0x0b, 0xc2, 0x61, 0x7c, 0x14, 0xe0, 0x0f, 0x5c, 0x30,
+ 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01,
+ 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+ 0x01, 0x05, 0x00, 0x04, 0x82, 0x01, 0x00, 0x7b, 0x5e, 0x82, 0x1d, 0x21,
+ 0xb6, 0x40, 0xd3, 0x33, 0x79, 0xa7, 0x52, 0x2b, 0xfc, 0x46, 0x51, 0x26,
+ 0xfe, 0x0f, 0x81, 0x90, 0x81, 0xab, 0x57, 0x5e, 0xf6, 0x45, 0x41, 0xa3,
+ 0x7b, 0x48, 0xdd, 0xd6, 0x59, 0x60, 0x51, 0x31, 0x14, 0x14, 0x7b, 0xb4,
+ 0x55, 0x7b, 0x4d, 0xfe, 0x09, 0x7a, 0x5d, 0xae, 0xc4, 0x58, 0x50, 0x80,
+ 0x75, 0xf2, 0x23, 0x20, 0x62, 0xe3, 0x7c, 0x26, 0x1d, 0x2a, 0x4d, 0x9f,
+ 0x89, 0xf0, 0x4f, 0x95, 0x8a, 0x80, 0x6e, 0x1a, 0xea, 0x87, 0xdb, 0x1f,
+ 0xf3, 0xda, 0x04, 0x91, 0x37, 0xea, 0x0a, 0xfb, 0x6c, 0xc9, 0x3d, 0x73,
+ 0xf9, 0x58, 0x7c, 0x15, 0x6b, 0xa2, 0x52, 0x5a, 0x97, 0xff, 0xd6, 0xb0,
+ 0xf1, 0xbf, 0xa5, 0x04, 0x6d, 0x91, 0xc1, 0x54, 0x05, 0xdc, 0x7f, 0x5d,
+ 0x19, 0xaf, 0x55, 0xec, 0x51, 0xfb, 0x66, 0x0a, 0xa4, 0x4e, 0x96, 0x47,
+ 0x43, 0x54, 0x7c, 0x64, 0xa8, 0xaa, 0xb4, 0x90, 0x02, 0xf3, 0xa7, 0x0b,
+ 0xb7, 0xbf, 0x06, 0xdb, 0x5e, 0x9c, 0x32, 0x6d, 0x45, 0x14, 0x1c, 0xaf,
+ 0x46, 0x30, 0x08, 0x55, 0x49, 0x78, 0xfa, 0x57, 0xda, 0x3d, 0xf5, 0xa0,
+ 0xef, 0x11, 0x0a, 0x81, 0x0d, 0x82, 0xcd, 0xaf, 0xdb, 0xda, 0x0e, 0x1a,
+ 0x44, 0xd1, 0xee, 0xc4, 0xb8, 0xde, 0x97, 0xb4, 0xda, 0xb4, 0x8b, 0x4f,
+ 0x58, 0x24, 0x59, 0xc0, 0xe0, 0x08, 0x97, 0x14, 0x68, 0xbe, 0x31, 0x09,
+ 0x5e, 0x67, 0x45, 0xf0, 0xcb, 0x81, 0x4f, 0x17, 0x44, 0x61, 0xe0, 0xe2,
+ 0xf0, 0xfc, 0x1e, 0xb9, 0x73, 0xaf, 0x42, 0xff, 0x33, 0xde, 0x61, 0x6b,
+ 0x7f, 0xc2, 0x69, 0x0d, 0x66, 0x54, 0xae, 0xf6, 0xde, 0x20, 0x47, 0x44,
+ 0x9b, 0x73, 0xd1, 0x07, 0x6e, 0x77, 0x37, 0x0a, 0xbb, 0x7f, 0xa0, 0x93,
+ 0x2d, 0x8d, 0x44, 0xba, 0xe2, 0xdd, 0x34, 0x32, 0xd7, 0x56, 0x71, 0x00,
+ 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xc4, 0x7e,
+ 0x4d, 0x6f, 0x64, 0x75, 0x6c, 0x65, 0x20, 0x73, 0x69, 0x67, 0x6e, 0x61,
+ 0x74, 0x75, 0x72, 0x65, 0x20, 0x61, 0x70, 0x70, 0x65, 0x6e, 0x64, 0x65,
+ 0x64, 0x7e, 0x0a
+};
+unsigned int hi_signed_sha256_len = 495;
+
+unsigned char short_msg[] = {
+ 0x68, 0x69, 0x0a
+};
+unsigned int short_msg_len = 3;
+
+unsigned char unsigned_msg[] = {
+ 0x53, 0x65, 0x64, 0x20, 0x75, 0x74, 0x20, 0x70, 0x65, 0x72, 0x73, 0x70,
+ 0x69, 0x63, 0x69, 0x61, 0x74, 0x69, 0x73, 0x20, 0x75, 0x6e, 0x64, 0x65,
+ 0x20, 0x6f, 0x6d, 0x6e, 0x69, 0x73, 0x20, 0x69, 0x73, 0x74, 0x65, 0x20,
+ 0x6e, 0x61, 0x74, 0x75, 0x73, 0x20, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x20,
+ 0x73, 0x69, 0x74, 0x20, 0x76, 0x6f, 0x6c, 0x75, 0x70, 0x74, 0x61, 0x74,
+ 0x65, 0x6d, 0x20, 0x61, 0x63, 0x63, 0x75, 0x73, 0x61, 0x6e, 0x74, 0x69,
+ 0x75, 0x6d, 0x20, 0x64, 0x6f, 0x6c, 0x6f, 0x72, 0x65, 0x6d, 0x71, 0x75,
+ 0x65, 0x20, 0x6c, 0x61, 0x75, 0x64, 0x61, 0x6e, 0x74, 0x69, 0x75, 0x6d,
+ 0x2c, 0x20, 0x74, 0x6f, 0x74, 0x61, 0x6d, 0x20, 0x72, 0x65, 0x6d, 0x20,
+ 0x61, 0x70, 0x65, 0x72, 0x69, 0x61, 0x6d, 0x2c, 0x20, 0x65, 0x61, 0x71,
+ 0x75, 0x65, 0x20, 0x69, 0x70, 0x73, 0x61, 0x20, 0x71, 0x75, 0x61, 0x65,
+ 0x20, 0x61, 0x62, 0x20, 0x69, 0x6c, 0x6c, 0x6f, 0x20, 0x69, 0x6e, 0x76,
+ 0x65, 0x6e, 0x74, 0x6f, 0x72, 0x65, 0x20, 0x76, 0x65, 0x72, 0x69, 0x74,
+ 0x61, 0x74, 0x69, 0x73, 0x20, 0x65, 0x74, 0x20, 0x71, 0x75, 0x61, 0x73,
+ 0x69, 0x20, 0x61, 0x72, 0x63, 0x68, 0x69, 0x74, 0x65, 0x63, 0x74, 0x6f,
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+ 0x6d, 0x20, 0x66, 0x75, 0x67, 0x69, 0x61, 0x74, 0x20, 0x71, 0x75, 0x6f,
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+ 0x3f, 0x0a
+};
+unsigned int unsigned_msg_len = 866;
+
+unsigned char certificate2_der[] = {
+ 0x30, 0x82, 0x05, 0x52, 0x30, 0x82, 0x03, 0x3a, 0xa0, 0x03, 0x02, 0x01,
+ 0x02, 0x02, 0x14, 0x5b, 0x5e, 0x59, 0xf2, 0x5f, 0x75, 0x4c, 0x8e, 0xc5,
+ 0x3a, 0x91, 0x07, 0xe9, 0xe7, 0x6d, 0x3c, 0xd0, 0x7f, 0x91, 0xff, 0x30,
+ 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b,
+ 0x05, 0x00, 0x30, 0x3a, 0x31, 0x38, 0x30, 0x36, 0x06, 0x03, 0x55, 0x04,
+ 0x03, 0x0c, 0x2f, 0x47, 0x72, 0x75, 0x62, 0x20, 0x32, 0x6e, 0x64, 0x20,
+ 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x20,
+ 0x54, 0x65, 0x73, 0x74, 0x20, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69,
+ 0x63, 0x61, 0x74, 0x65, 0x20, 0x41, 0x75, 0x74, 0x68, 0x6f, 0x72, 0x69,
+ 0x74, 0x79, 0x30, 0x20, 0x17, 0x0d, 0x32, 0x30, 0x30, 0x37, 0x32, 0x38,
+ 0x31, 0x33, 0x32, 0x34, 0x32, 0x39, 0x5a, 0x18, 0x0f, 0x32, 0x31, 0x32,
+ 0x30, 0x30, 0x37, 0x30, 0x34, 0x31, 0x33, 0x32, 0x34, 0x32, 0x39, 0x5a,
+ 0x30, 0x2b, 0x31, 0x29, 0x30, 0x27, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c,
+ 0x20, 0x47, 0x72, 0x75, 0x62, 0x20, 0x32, 0x6e, 0x64, 0x20, 0x43, 0x65,
+ 0x72, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x20, 0x53, 0x69,
+ 0x67, 0x6e, 0x69, 0x6e, 0x67, 0x20, 0x4b, 0x65, 0x79, 0x30, 0x82, 0x02,
+ 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
+ 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x02, 0x0f, 0x00, 0x30, 0x82, 0x02,
+ 0x0a, 0x02, 0x82, 0x02, 0x01, 0x00, 0xb0, 0x2f, 0x50, 0x01, 0x9c, 0x0e,
+ 0xd6, 0x8c, 0x07, 0xca, 0xc1, 0xcf, 0xbc, 0x03, 0xdd, 0xd3, 0xfa, 0xe3,
+ 0x4f, 0x71, 0xc1, 0x30, 0xaa, 0x09, 0x96, 0xe4, 0xd0, 0x6c, 0x42, 0x93,
+ 0xdb, 0x35, 0xf6, 0x7e, 0x1b, 0x67, 0xc0, 0xc2, 0x2d, 0x5b, 0xec, 0xca,
+ 0x35, 0x06, 0x32, 0x6c, 0x7b, 0x2c, 0xd3, 0x71, 0x2b, 0xe9, 0x7a, 0x19,
+ 0xd1, 0xf2, 0xa0, 0x7f, 0xd7, 0x4d, 0x6e, 0x28, 0xbb, 0xae, 0x49, 0x4a,
+ 0xbc, 0xea, 0x47, 0x67, 0xb8, 0x36, 0xa6, 0xf5, 0x0d, 0x0e, 0x20, 0x14,
+ 0x0c, 0x66, 0x67, 0x28, 0xb5, 0x97, 0x8b, 0x1f, 0x5e, 0x32, 0x06, 0x29,
+ 0x9c, 0x99, 0x92, 0x0f, 0x73, 0xac, 0xfd, 0xd2, 0x1d, 0xf2, 0xa8, 0x55,
+ 0x9d, 0x1b, 0xd8, 0x3d, 0xb0, 0x76, 0x9a, 0xb6, 0x6c, 0x9f, 0x62, 0x37,
+ 0x2f, 0xc0, 0xef, 0x44, 0xb3, 0x0d, 0x4a, 0x3e, 0x4f, 0x7d, 0xbd, 0xdb,
+ 0xd8, 0x75, 0x5f, 0x68, 0xe3, 0xf0, 0xec, 0x82, 0x66, 0x7c, 0x31, 0x70,
+ 0xa9, 0xa1, 0x6f, 0x38, 0x9f, 0xdf, 0xf5, 0xf0, 0x7d, 0x23, 0x9d, 0x34,
+ 0xa5, 0x85, 0xd3, 0xdf, 0x68, 0x41, 0xfc, 0x4f, 0x89, 0x45, 0x3c, 0x24,
+ 0x81, 0xa6, 0xf2, 0x3c, 0x02, 0x26, 0x09, 0x48, 0xdd, 0xfe, 0x4b, 0xb6,
+ 0x66, 0xbf, 0x8f, 0xe5, 0x5f, 0xf0, 0x5d, 0x8a, 0x61, 0x2e, 0x5f, 0x9f,
+ 0x80, 0xd9, 0xd5, 0xe6, 0x41, 0xd8, 0x10, 0x5e, 0x7a, 0xc6, 0xdb, 0x89,
+ 0xc7, 0xca, 0x6c, 0x5b, 0xb1, 0x4e, 0x7d, 0x0c, 0x03, 0xfd, 0x50, 0xca,
+ 0xbf, 0xbb, 0xe2, 0x69, 0x4b, 0x4e, 0xc2, 0x3d, 0x75, 0xfa, 0xd1, 0xcc,
+ 0xd6, 0xf9, 0x39, 0xb9, 0xdc, 0x53, 0xad, 0x62, 0xfb, 0x1b, 0x94, 0x26,
+ 0x7f, 0x21, 0x54, 0x5c, 0xb7, 0xdc, 0xe7, 0x96, 0x8c, 0xce, 0x75, 0xe0,
+ 0x17, 0x01, 0x3a, 0x3c, 0x77, 0x6e, 0xa4, 0x8b, 0x7a, 0x83, 0x28, 0x7a,
+ 0xf7, 0xb0, 0x5f, 0xfc, 0x7f, 0x2d, 0x2e, 0xec, 0xf5, 0xeb, 0x9c, 0x63,
+ 0x74, 0xd0, 0xe5, 0xdc, 0x19, 0xe4, 0x71, 0xc5, 0x4a, 0x8a, 0x54, 0xa4,
+ 0xe0, 0x7d, 0x4e, 0xbf, 0x53, 0x30, 0xaf, 0xd0, 0xeb, 0x96, 0xc3, 0xbb,
+ 0x65, 0xf7, 0x67, 0xf5, 0xae, 0xd3, 0x96, 0xf2, 0x63, 0xc8, 0x69, 0xf7,
+ 0x47, 0xcb, 0x27, 0x79, 0xe1, 0xff, 0x2f, 0x68, 0xdf, 0x1e, 0xb3, 0xb8,
+ 0x0c, 0xc5, 0x58, 0x73, 0xcc, 0xfe, 0x8c, 0xda, 0x4e, 0x3b, 0x01, 0x04,
+ 0xcd, 0xcb, 0xb8, 0x3e, 0x06, 0xfd, 0x4c, 0x0a, 0x9f, 0x5e, 0x76, 0x8c,
+ 0x0c, 0x83, 0x75, 0x09, 0x08, 0xb2, 0xdb, 0xf4, 0x49, 0x4e, 0xa0, 0xf2,
+ 0x0c, 0x7b, 0x87, 0x38, 0x9e, 0x22, 0x67, 0xbd, 0xd1, 0x97, 0x57, 0x24,
+ 0xf1, 0x46, 0x07, 0xf9, 0xd2, 0x1b, 0xec, 0x25, 0x5e, 0x67, 0xd9, 0x66,
+ 0x23, 0x1b, 0xd3, 0xe4, 0xaa, 0xec, 0x88, 0xf0, 0x7e, 0x15, 0x83, 0x51,
+ 0x31, 0x67, 0x51, 0x76, 0x5f, 0x55, 0xd7, 0x36, 0xdf, 0x4a, 0x84, 0x0b,
+ 0x6f, 0x5c, 0xbb, 0x5b, 0x8f, 0x37, 0x23, 0x7f, 0xf8, 0x17, 0x84, 0xa2,
+ 0x70, 0x20, 0x07, 0x0c, 0x90, 0x3a, 0x04, 0xfd, 0xf0, 0x08, 0x4a, 0xb1,
+ 0x16, 0x0f, 0xe6, 0xf6, 0x40, 0x51, 0x83, 0xd2, 0x87, 0x40, 0x9c, 0x1c,
+ 0x9f, 0x13, 0x38, 0x17, 0xd3, 0x34, 0x58, 0xad, 0x05, 0x71, 0xa0, 0x73,
+ 0xca, 0x40, 0xa6, 0xa4, 0x81, 0x02, 0xee, 0xa8, 0x72, 0x41, 0xa1, 0x41,
+ 0x18, 0x64, 0x8a, 0x86, 0x8a, 0x5d, 0xe6, 0x4f, 0x0a, 0xc5, 0x95, 0x98,
+ 0xf9, 0x78, 0xfe, 0x19, 0x0d, 0xc9, 0xb3, 0x89, 0xc1, 0x2b, 0x09, 0xbe,
+ 0xf1, 0xd2, 0x04, 0x5d, 0xcc, 0x28, 0xf5, 0x4b, 0xd2, 0x20, 0x4f, 0xc5,
+ 0x41, 0x9d, 0x8c, 0x85, 0xd8, 0xb0, 0x68, 0x5e, 0xc1, 0x0c, 0xb7, 0x24,
+ 0x4d, 0x67, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x5d, 0x30, 0x5b, 0x30,
+ 0x0c, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x02, 0x30,
+ 0x00, 0x30, 0x0b, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x04, 0x04, 0x03, 0x02,
+ 0x07, 0x80, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04,
+ 0x14, 0xac, 0xf5, 0x47, 0x17, 0xd9, 0x7d, 0xc1, 0xb1, 0xc4, 0x41, 0xe1,
+ 0x41, 0x60, 0xcb, 0x37, 0x11, 0x60, 0x28, 0x78, 0x5f, 0x30, 0x1f, 0x06,
+ 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0x21, 0x94,
+ 0xfb, 0xf9, 0xb2, 0x43, 0xe9, 0x33, 0xd7, 0x50, 0x7d, 0xc7, 0x37, 0xdb,
+ 0xd5, 0x82, 0x5a, 0x4e, 0xbe, 0x1b, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86,
+ 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x82, 0x02,
+ 0x01, 0x00, 0x96, 0x70, 0x65, 0x26, 0x42, 0xf8, 0xdc, 0x69, 0xde, 0xcf,
+ 0x41, 0x3a, 0x2e, 0x7f, 0x5b, 0xf1, 0xf9, 0x3b, 0x9b, 0xd2, 0x4e, 0x64,
+ 0x48, 0x81, 0xe4, 0x5d, 0x1e, 0x22, 0xce, 0x68, 0x63, 0x62, 0xe5, 0x1b,
+ 0x9b, 0xf2, 0xc7, 0x12, 0xda, 0x1e, 0x9b, 0x90, 0x84, 0x79, 0x48, 0x12,
+ 0xe6, 0x21, 0x6f, 0x2f, 0x7e, 0x18, 0x77, 0xdb, 0x8c, 0xc4, 0xd1, 0x0d,
+ 0x91, 0xbf, 0x39, 0x22, 0x0f, 0x64, 0xcf, 0x25, 0x2e, 0x8c, 0x1f, 0x91,
+ 0x81, 0xb5, 0xe9, 0x6c, 0x02, 0x3a, 0xf8, 0x07, 0xa2, 0x6f, 0x46, 0x5d,
+ 0x7b, 0xfd, 0x43, 0xff, 0x41, 0x0f, 0xe2, 0x57, 0x1c, 0xbd, 0x48, 0x60,
+ 0x53, 0x11, 0x48, 0x87, 0x88, 0x9d, 0x13, 0x82, 0x40, 0x68, 0x44, 0x2c,
+ 0xc6, 0xc8, 0x95, 0x27, 0x4f, 0xb6, 0xb9, 0x4a, 0x22, 0x0a, 0xfd, 0xe4,
+ 0x46, 0x8f, 0x35, 0x12, 0x98, 0x5a, 0x34, 0x6f, 0x2b, 0x57, 0x62, 0xa1,
+ 0x4d, 0x8d, 0x79, 0x37, 0xe4, 0x6b, 0x8a, 0x32, 0x5b, 0xcb, 0xef, 0x79,
+ 0x11, 0xed, 0xa7, 0xf8, 0x7a, 0x1c, 0xbd, 0x86, 0xdc, 0x0e, 0x2e, 0xfd,
+ 0xd3, 0x51, 0xbb, 0x73, 0xad, 0x00, 0xa0, 0x1b, 0xf9, 0x1d, 0xd1, 0x4a,
+ 0xe4, 0xd4, 0x02, 0x63, 0x2b, 0x39, 0x5f, 0x18, 0x08, 0x2f, 0x42, 0xb7,
+ 0x23, 0x4b, 0x48, 0x46, 0x1f, 0x63, 0x87, 0xae, 0x6d, 0xd5, 0xdb, 0x60,
+ 0xf8, 0x5f, 0xd3, 0x13, 0xec, 0xca, 0xdd, 0x60, 0x60, 0x79, 0x52, 0x70,
+ 0x47, 0xae, 0x1d, 0x38, 0x78, 0x71, 0xcf, 0xb3, 0x04, 0x03, 0xbe, 0xba,
+ 0x81, 0xba, 0x74, 0xb1, 0x30, 0x35, 0xdc, 0xea, 0x21, 0x4a, 0x9b, 0x70,
+ 0xfb, 0xd6, 0x60, 0x59, 0x78, 0x0c, 0x4d, 0x39, 0x19, 0x1d, 0xe5, 0x75,
+ 0xba, 0x07, 0xf4, 0x22, 0x37, 0x64, 0xb7, 0xf2, 0x9a, 0xc9, 0x11, 0x2d,
+ 0x8e, 0x58, 0xa6, 0xcf, 0x83, 0xf1, 0xcb, 0x6c, 0x7f, 0x02, 0xbd, 0xda,
+ 0x03, 0x92, 0xa9, 0x45, 0x24, 0x56, 0xc5, 0xbd, 0x41, 0xd1, 0x20, 0x86,
+ 0xc0, 0xb6, 0xb7, 0xe8, 0xa7, 0xb2, 0x46, 0xf7, 0x8e, 0xa9, 0x38, 0x0e,
+ 0x23, 0x77, 0x3c, 0x0d, 0x66, 0x83, 0x6a, 0x1a, 0x6b, 0x7f, 0x54, 0x11,
+ 0x58, 0x0d, 0x4a, 0xb5, 0x74, 0x60, 0xca, 0xed, 0xff, 0x91, 0x47, 0xd9,
+ 0x29, 0xe0, 0xaa, 0x8c, 0xa8, 0x8f, 0x10, 0x4c, 0x15, 0x7d, 0xce, 0x95,
+ 0xf9, 0x87, 0x1e, 0x18, 0x38, 0x18, 0xfc, 0xcc, 0xaf, 0x91, 0x17, 0x3f,
+ 0xfa, 0xf0, 0x8a, 0x09, 0x6f, 0xba, 0x4e, 0x53, 0xf7, 0xfa, 0x4f, 0x20,
+ 0xa3, 0xf4, 0x4a, 0x5a, 0xde, 0x17, 0x1c, 0x29, 0x6a, 0x6f, 0x03, 0x48,
+ 0xdf, 0xad, 0x4f, 0xe4, 0xbc, 0x71, 0xc4, 0x72, 0x32, 0x11, 0x84, 0xac,
+ 0x09, 0xd2, 0x18, 0x44, 0x35, 0xf1, 0xcd, 0xaf, 0xa8, 0x98, 0xe0, 0x8b,
+ 0xec, 0xa0, 0x83, 0x37, 0xc3, 0x35, 0x85, 0xd6, 0xd8, 0x1b, 0xe0, 0x75,
+ 0xdc, 0xfd, 0xde, 0xc9, 0xeb, 0xd5, 0x18, 0x0f, 0xd3, 0x4c, 0x2f, 0x71,
+ 0xdc, 0x48, 0xe3, 0x14, 0xeb, 0xda, 0x00, 0x24, 0x24, 0x9e, 0xa3, 0x8e,
+ 0x3e, 0x08, 0x6f, 0x22, 0x24, 0xd6, 0xc4, 0x85, 0x8f, 0x68, 0x00, 0x4a,
+ 0x82, 0x4c, 0x33, 0x6e, 0xa5, 0x35, 0x7b, 0xeb, 0x4b, 0xdc, 0xa0, 0xa6,
+ 0x65, 0x6f, 0x5a, 0x7a, 0xdf, 0x8a, 0x01, 0x52, 0xa1, 0x6c, 0xff, 0x59,
+ 0x22, 0x7f, 0xe1, 0x96, 0x1b, 0x19, 0xb8, 0xf9, 0x5d, 0x44, 0x9f, 0x91,
+ 0x03, 0x3c, 0x3d, 0xa1, 0x2a, 0xb6, 0x5a, 0x51, 0xa0, 0xce, 0x4a, 0x88,
+ 0x22, 0x72, 0x9c, 0xdc, 0xc0, 0x47, 0x76, 0x35, 0x84, 0x75, 0x9b, 0x87,
+ 0x5c, 0xd3, 0xcf, 0xe7, 0xdd, 0xa3, 0x57, 0x14, 0xdf, 0x00, 0xfd, 0x19,
+ 0x2a, 0x7d, 0x89, 0x27, 0x1c, 0x78, 0x97, 0x04, 0x58, 0x48
+};
+unsigned int certificate2_der_len = 1366;
+
+unsigned char hi_signed_2nd[] = {
+ 0x68, 0x69, 0x0a, 0x30, 0x82, 0x02, 0xb1, 0x06, 0x09, 0x2a, 0x86, 0x48,
+ 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x02, 0xa2, 0x30, 0x82,
+ 0x02, 0x9e, 0x02, 0x01, 0x01, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60,
+ 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x30, 0x0b, 0x06, 0x09,
+ 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0x31, 0x82, 0x02,
+ 0x7b, 0x30, 0x82, 0x02, 0x77, 0x02, 0x01, 0x01, 0x30, 0x52, 0x30, 0x3a,
+ 0x31, 0x38, 0x30, 0x36, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x2f, 0x47,
+ 0x72, 0x75, 0x62, 0x20, 0x32, 0x6e, 0x64, 0x20, 0x43, 0x65, 0x72, 0x74,
+ 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x20, 0x54, 0x65, 0x73, 0x74,
+ 0x20, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x65,
+ 0x20, 0x41, 0x75, 0x74, 0x68, 0x6f, 0x72, 0x69, 0x74, 0x79, 0x02, 0x14,
+ 0x5b, 0x5e, 0x59, 0xf2, 0x5f, 0x75, 0x4c, 0x8e, 0xc5, 0x3a, 0x91, 0x07,
+ 0xe9, 0xe7, 0x6d, 0x3c, 0xd0, 0x7f, 0x91, 0xff, 0x30, 0x0b, 0x06, 0x09,
+ 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x30, 0x0d, 0x06,
+ 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00,
+ 0x04, 0x82, 0x02, 0x00, 0x0e, 0xc2, 0x30, 0x38, 0x81, 0x23, 0x68, 0x90,
+ 0xae, 0x5f, 0xce, 0xf7, 0x27, 0xb1, 0x8c, 0x2e, 0x12, 0x10, 0xc6, 0x99,
+ 0xdc, 0x4d, 0x4b, 0x79, 0xda, 0xe4, 0x32, 0x10, 0x46, 0x1c, 0x16, 0x07,
+ 0x87, 0x66, 0x55, 0xff, 0x64, 0x1c, 0x61, 0x25, 0xd5, 0xb9, 0xe1, 0xfe,
+ 0xea, 0x5a, 0xcd, 0x56, 0xa5, 0xc3, 0xbe, 0xb1, 0x61, 0xc7, 0x6f, 0x5f,
+ 0x69, 0x20, 0x64, 0x50, 0x6f, 0x12, 0x78, 0xb6, 0x0c, 0x72, 0x44, 0x4f,
+ 0x60, 0x0f, 0x9f, 0xa2, 0x83, 0x3b, 0xc2, 0x83, 0xd5, 0x14, 0x1f, 0x6f,
+ 0x3e, 0xb2, 0x47, 0xb5, 0x58, 0xc5, 0xa7, 0xb4, 0x82, 0x53, 0x2e, 0x53,
+ 0x95, 0x4e, 0x3d, 0xe4, 0x62, 0xe8, 0xa1, 0xaf, 0xae, 0xbf, 0xa9, 0xd2,
+ 0x22, 0x07, 0xbe, 0x71, 0x37, 0x2c, 0x5a, 0xa7, 0x6c, 0xaf, 0x14, 0xc0,
+ 0x6c, 0x2f, 0xbf, 0x4f, 0x15, 0xc2, 0x0f, 0x8b, 0xdc, 0x68, 0x45, 0xdf,
+ 0xf3, 0xa5, 0x7f, 0x11, 0x6a, 0x54, 0xcd, 0x67, 0xb9, 0x2e, 0x7d, 0x05,
+ 0xe3, 0x1c, 0x1d, 0xcc, 0x77, 0x8e, 0x97, 0xb1, 0xa0, 0x11, 0x09, 0x3d,
+ 0x90, 0x54, 0xfc, 0x7e, 0xbb, 0xbb, 0x21, 0x23, 0x03, 0x44, 0xbf, 0x7d,
+ 0x2c, 0xc9, 0x15, 0x42, 0xe5, 0xa0, 0x3b, 0xa2, 0xd1, 0x5b, 0x73, 0x81,
+ 0xff, 0xfa, 0x90, 0xfc, 0x27, 0x7b, 0x2f, 0x86, 0x9c, 0x1d, 0x14, 0x36,
+ 0x94, 0xa2, 0x6e, 0xe8, 0x9d, 0xa0, 0x5f, 0xfc, 0x5a, 0x0d, 0xa4, 0xd5,
+ 0x2f, 0x8d, 0xd6, 0x00, 0xfa, 0x93, 0x5b, 0x09, 0x7f, 0x42, 0x78, 0xcc,
+ 0x8c, 0x49, 0xda, 0xd9, 0xf6, 0x43, 0xe7, 0xe1, 0x3c, 0xa2, 0xe2, 0x70,
+ 0xe2, 0x6a, 0x99, 0xc5, 0xd6, 0xa2, 0xe3, 0x0b, 0xd4, 0x09, 0xac, 0x94,
+ 0xaf, 0xb7, 0xf0, 0xb3, 0x0c, 0x1e, 0xf5, 0x16, 0x4f, 0x53, 0x9a, 0xe3,
+ 0xcc, 0xe2, 0x0c, 0x4a, 0xb9, 0xe6, 0x06, 0xbb, 0xf7, 0x41, 0x43, 0x20,
+ 0x04, 0xee, 0x99, 0x2f, 0xd8, 0x9f, 0xda, 0x3f, 0xfd, 0x49, 0xb8, 0xc2,
+ 0xbd, 0xd9, 0xc5, 0x72, 0xfd, 0xe3, 0xce, 0x1c, 0xbc, 0xe4, 0x39, 0xac,
+ 0x2a, 0x99, 0xe9, 0xb4, 0x3e, 0x74, 0x10, 0xeb, 0xd5, 0x14, 0xcc, 0xdb,
+ 0xf1, 0x04, 0x63, 0x36, 0xfb, 0x1f, 0x2b, 0xe2, 0x73, 0xd4, 0xd8, 0x49,
+ 0x31, 0xa8, 0x55, 0xcc, 0xa7, 0x76, 0x36, 0x6e, 0x18, 0xdc, 0xb9, 0xb0,
+ 0x29, 0x99, 0xcf, 0x49, 0xbf, 0xf9, 0xdb, 0x7f, 0x24, 0x42, 0x02, 0xcb,
+ 0xc1, 0xaa, 0xcb, 0xba, 0x18, 0x85, 0x86, 0xc7, 0xf4, 0x1c, 0x62, 0x76,
+ 0xbc, 0x73, 0xfb, 0xe4, 0x15, 0xb8, 0xdd, 0x5d, 0xa6, 0x68, 0x39, 0xa5,
+ 0x3d, 0x33, 0xaf, 0xd5, 0x92, 0x4d, 0x48, 0xdb, 0x22, 0xc0, 0xdc, 0x49,
+ 0x5f, 0x7b, 0xa8, 0xd2, 0x62, 0x2d, 0xa7, 0x39, 0x93, 0x48, 0xe7, 0x6b,
+ 0x23, 0xba, 0xd4, 0xe0, 0xc1, 0x29, 0x55, 0xc4, 0x34, 0xe3, 0xac, 0x25,
+ 0xa7, 0x15, 0xad, 0xab, 0xb3, 0xb7, 0x25, 0xca, 0x37, 0x88, 0x40, 0x2e,
+ 0x47, 0x6e, 0x92, 0x20, 0x09, 0x2e, 0x5a, 0xec, 0xf2, 0xfb, 0xb3, 0xa0,
+ 0x16, 0xb6, 0x93, 0xf2, 0xf5, 0x8b, 0xfe, 0xaf, 0x25, 0xee, 0x2e, 0x98,
+ 0x6c, 0x0a, 0xfe, 0xae, 0x0b, 0x57, 0xf5, 0x9f, 0x3c, 0x80, 0xe9, 0x8b,
+ 0xaf, 0x92, 0x8a, 0xad, 0xe7, 0xa0, 0xe4, 0xe6, 0x0a, 0xa0, 0xc7, 0x83,
+ 0xb5, 0x48, 0x58, 0x5f, 0x55, 0x9e, 0x9b, 0x27, 0xcd, 0x31, 0x1f, 0x3e,
+ 0x50, 0x5a, 0x91, 0xad, 0x21, 0x1b, 0x97, 0x5b, 0xe8, 0xfa, 0x29, 0x8a,
+ 0xa4, 0x17, 0xe8, 0xab, 0x87, 0x02, 0xd6, 0x18, 0x8c, 0x9f, 0x65, 0xb7,
+ 0x2a, 0xfa, 0xde, 0x5f, 0x77, 0x30, 0x6c, 0x04, 0x22, 0xe6, 0x58, 0x26,
+ 0x14, 0x0d, 0x9c, 0x41, 0x0a, 0x82, 0x77, 0xdb, 0x40, 0xa1, 0x58, 0xac,
+ 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xb5,
+ 0x7e, 0x4d, 0x6f, 0x64, 0x75, 0x6c, 0x65, 0x20, 0x73, 0x69, 0x67, 0x6e,
+ 0x61, 0x74, 0x75, 0x72, 0x65, 0x20, 0x61, 0x70, 0x70, 0x65, 0x6e, 0x64,
+ 0x65, 0x64, 0x7e, 0x0a
+};
+unsigned int hi_signed_2nd_len = 736;
+
+unsigned char certificate_printable_der[] = {
+ 0x30, 0x82, 0x03, 0x39, 0x30, 0x82, 0x02, 0x21, 0xa0, 0x03, 0x02, 0x01,
+ 0x02, 0x02, 0x09, 0x00, 0xde, 0xf6, 0x22, 0xc4, 0xf2, 0xf1, 0x86, 0x02,
+ 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+ 0x0b, 0x05, 0x00, 0x30, 0x2a, 0x31, 0x28, 0x30, 0x26, 0x06, 0x03, 0x55,
+ 0x04, 0x03, 0x13, 0x1f, 0x52, 0x65, 0x64, 0x20, 0x48, 0x61, 0x74, 0x20,
+ 0x53, 0x65, 0x63, 0x75, 0x72, 0x65, 0x20, 0x42, 0x6f, 0x6f, 0x74, 0x20,
+ 0x43, 0x41, 0x20, 0x32, 0x20, 0x28, 0x62, 0x65, 0x74, 0x61, 0x29, 0x30,
+ 0x1e, 0x17, 0x0d, 0x31, 0x34, 0x31, 0x30, 0x33, 0x31, 0x31, 0x34, 0x31,
+ 0x39, 0x32, 0x33, 0x5a, 0x17, 0x0d, 0x33, 0x37, 0x31, 0x30, 0x32, 0x35,
+ 0x31, 0x34, 0x31, 0x39, 0x32, 0x33, 0x5a, 0x30, 0x2f, 0x31, 0x2d, 0x30,
+ 0x2b, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x24, 0x52, 0x65, 0x64, 0x20,
+ 0x48, 0x61, 0x74, 0x20, 0x53, 0x65, 0x63, 0x75, 0x72, 0x65, 0x20, 0x42,
+ 0x6f, 0x6f, 0x74, 0x20, 0x53, 0x69, 0x67, 0x6e, 0x69, 0x6e, 0x67, 0x20,
+ 0x33, 0x20, 0x28, 0x62, 0x65, 0x74, 0x61, 0x29, 0x30, 0x82, 0x01, 0x22,
+ 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+ 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a,
+ 0x02, 0x82, 0x01, 0x01, 0x00, 0xbd, 0xda, 0xa1, 0xed, 0x8d, 0x8e, 0x15,
+ 0x5c, 0xf8, 0x01, 0x77, 0x48, 0x4a, 0x60, 0x96, 0xf9, 0x27, 0xfa, 0xe2,
+ 0xb1, 0x69, 0x0f, 0x51, 0x19, 0x52, 0x7e, 0xc4, 0x34, 0x8e, 0xe1, 0x9b,
+ 0x9c, 0xa4, 0xb1, 0x5c, 0xd6, 0x81, 0x98, 0x78, 0xfe, 0xa9, 0xe5, 0x0b,
+ 0x00, 0xba, 0x9c, 0x64, 0x7e, 0xc7, 0xcc, 0x72, 0xb1, 0x73, 0x4b, 0x11,
+ 0x07, 0x52, 0xf0, 0x20, 0x96, 0x8b, 0x99, 0x39, 0xde, 0xdb, 0xfa, 0x3d,
+ 0x45, 0xe2, 0x98, 0x7b, 0x0c, 0x41, 0xe4, 0x0c, 0xb5, 0x5d, 0x92, 0x74,
+ 0x39, 0x96, 0xe1, 0x97, 0x97, 0xa1, 0xad, 0x2e, 0xcc, 0xd0, 0x1b, 0x4d,
+ 0x9d, 0xbd, 0x3e, 0xa9, 0x36, 0x8e, 0xcc, 0xc7, 0x5f, 0x6a, 0x7d, 0x39,
+ 0x5e, 0x0b, 0x8d, 0xca, 0xe4, 0x83, 0xe9, 0x3b, 0x5c, 0x86, 0x47, 0xd4,
+ 0xba, 0x7d, 0x98, 0x26, 0xa1, 0xf4, 0xe8, 0x90, 0x6b, 0x0f, 0xf1, 0x6b,
+ 0x8c, 0xe3, 0xa2, 0x80, 0x3c, 0x96, 0xf1, 0x0a, 0xb6, 0x66, 0xc0, 0x4b,
+ 0x61, 0xf7, 0x74, 0xcd, 0xd3, 0x7b, 0x8e, 0x5e, 0x39, 0xda, 0x99, 0x20,
+ 0x33, 0x93, 0xd3, 0xf0, 0x7f, 0xad, 0x35, 0xe9, 0x88, 0x8d, 0x9c, 0xbf,
+ 0x65, 0xf1, 0x47, 0x02, 0xf9, 0x7c, 0xed, 0x27, 0x5f, 0x4a, 0x65, 0x3c,
+ 0xcf, 0x5f, 0x0e, 0x88, 0x95, 0x74, 0xde, 0xfb, 0x9e, 0x2e, 0x91, 0x9b,
+ 0x45, 0x37, 0xc8, 0x85, 0xff, 0xe3, 0x41, 0x70, 0xfe, 0xd5, 0xef, 0x0e,
+ 0x82, 0x22, 0x08, 0xb7, 0x3b, 0x44, 0x3e, 0xdc, 0x5b, 0x7f, 0xba, 0xbf,
+ 0xe6, 0x58, 0x9d, 0x02, 0x6e, 0x75, 0xbf, 0x50, 0xec, 0xcf, 0x3f, 0xa5,
+ 0x91, 0x0a, 0xe2, 0x59, 0x2c, 0xc3, 0xe7, 0x05, 0x03, 0xe8, 0xf2, 0x6f,
+ 0x2a, 0x04, 0x68, 0x9a, 0x31, 0x32, 0x8f, 0x04, 0x35, 0xcd, 0x1f, 0x34,
+ 0xcc, 0x4f, 0x79, 0x5a, 0x99, 0x8d, 0x9d, 0x5c, 0xf5, 0x02, 0x03, 0x01,
+ 0x00, 0x01, 0xa3, 0x5d, 0x30, 0x5b, 0x30, 0x0c, 0x06, 0x03, 0x55, 0x1d,
+ 0x13, 0x01, 0x01, 0xff, 0x04, 0x02, 0x30, 0x00, 0x30, 0x0b, 0x06, 0x03,
+ 0x55, 0x1d, 0x0f, 0x04, 0x04, 0x03, 0x02, 0x07, 0x80, 0x30, 0x1d, 0x06,
+ 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x65, 0xc5, 0xbe, 0xca,
+ 0xe6, 0x59, 0x6a, 0xfd, 0x6c, 0x71, 0xc4, 0xa7, 0x98, 0xc6, 0x25, 0x8d,
+ 0x7b, 0x67, 0x05, 0xd0, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04,
+ 0x18, 0x30, 0x16, 0x80, 0x14, 0x81, 0xf8, 0xee, 0x47, 0x5c, 0x3e, 0xed,
+ 0xfb, 0xce, 0xa5, 0x84, 0xbe, 0xd7, 0xae, 0xdb, 0xd3, 0x7d, 0x64, 0xb3,
+ 0x2a, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
+ 0x01, 0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x66, 0x1e, 0x3d,
+ 0x1d, 0x53, 0x33, 0xde, 0x4e, 0xc7, 0xc4, 0xf4, 0xdf, 0xda, 0x18, 0x19,
+ 0x8a, 0xa9, 0xff, 0xe2, 0x63, 0x2b, 0xbe, 0xf2, 0x61, 0x63, 0xe2, 0xf6,
+ 0xed, 0x47, 0x1a, 0x71, 0x02, 0xec, 0x2a, 0xef, 0x89, 0x77, 0xe3, 0xfd,
+ 0x86, 0x69, 0xf1, 0x3f, 0x0d, 0xf9, 0x6e, 0xf9, 0x3b, 0xad, 0x26, 0x47,
+ 0xb7, 0xf2, 0x0d, 0xad, 0x23, 0xa3, 0x67, 0x3b, 0xcb, 0x6d, 0x9e, 0x03,
+ 0x0f, 0xbc, 0x69, 0x73, 0x9f, 0xd4, 0xa5, 0x0f, 0x6f, 0xf8, 0xab, 0x4d,
+ 0x36, 0xd1, 0xe0, 0xe0, 0x5d, 0x20, 0x43, 0x90, 0xc4, 0x65, 0x61, 0x93,
+ 0xe2, 0x0f, 0x51, 0x59, 0x0a, 0xf7, 0x88, 0x70, 0x57, 0xb9, 0x04, 0xa9,
+ 0x32, 0x57, 0x9c, 0xb3, 0x57, 0x38, 0x8b, 0x8e, 0x46, 0xc8, 0x32, 0x6c,
+ 0xb4, 0xf3, 0x96, 0x7f, 0x4b, 0xf0, 0x88, 0xf9, 0x7f, 0xe2, 0x71, 0xe1,
+ 0x8b, 0xe2, 0x14, 0xf1, 0x4b, 0x25, 0x00, 0x48, 0x1c, 0x7e, 0xe5, 0x8d,
+ 0x65, 0x2d, 0xeb, 0x72, 0x4f, 0x92, 0x44, 0xf3, 0xe6, 0xe0, 0xd0, 0xdf,
+ 0x85, 0xa8, 0x13, 0x4a, 0xfb, 0x99, 0xca, 0x14, 0x2c, 0x97, 0x80, 0x93,
+ 0x27, 0xd3, 0x20, 0xf8, 0x6d, 0x29, 0x28, 0x2c, 0xb9, 0x77, 0xea, 0xb1,
+ 0x63, 0xbd, 0x7d, 0x53, 0xfd, 0x4a, 0x62, 0x64, 0x0b, 0x98, 0xa8, 0xae,
+ 0x11, 0xfc, 0x6e, 0x8d, 0x63, 0xd4, 0x15, 0x55, 0xc6, 0x4c, 0x74, 0xf5,
+ 0x5f, 0xa0, 0xb9, 0x2c, 0x2d, 0x9a, 0x7a, 0x87, 0x6e, 0xf0, 0x5e, 0x25,
+ 0xed, 0xfc, 0xd8, 0xc4, 0x34, 0x33, 0x32, 0xad, 0x01, 0xd4, 0x4b, 0x49,
+ 0x51, 0xc2, 0x07, 0x7f, 0x90, 0x6d, 0xea, 0xf5, 0x4c, 0x41, 0x71, 0x64,
+ 0xeb, 0x1f, 0x29, 0xa3, 0x1f, 0x64, 0xa2, 0x1e, 0x0e, 0x6f, 0xa1, 0x67,
+ 0x99, 0x8d, 0x98, 0x1c, 0xb8, 0x53, 0x9d, 0x30, 0x1d, 0xae, 0x32, 0x56,
+ 0xd2
+};
+unsigned int certificate_printable_der_len = 829;

333
0303-appended-signatures-documentation.patch Normal file
View File

@ -0,0 +1,333 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@redhat.com>
Date: Mon, 8 Feb 2021 19:30:54 +0100
Subject: [PATCH] appended signatures: documentation
This explains how appended signatures can be used to form part of
a secure boot chain, and documents the commands and variables
introduced.
(docs: s/grub/grub2/)
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
docs/grub.texi | 189 ++++++++++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 174 insertions(+), 15 deletions(-)
diff --git a/docs/grub.texi b/docs/grub.texi
index 7fc2a62a4f8..7fe365414e4 100644
--- a/docs/grub.texi
+++ b/docs/grub.texi
@@ -3160,6 +3160,7 @@ These variables have special meaning to GRUB.
@menu
* biosnum::
+* check_appended_signatures::
* check_signatures::
* chosen::
* cmdpath::
@@ -3219,11 +3220,18 @@ For an alternative approach which also changes BIOS drive mappings for the
chain-loaded system, @pxref{drivemap}.
+@node check_appended_signatures
+@subsection check_appended_signatures
+
+This variable controls whether GRUB enforces appended signature validation on
+certain loaded files. @xref{Using appended signatures}.
+
+
@node check_signatures
@subsection check_signatures
-This variable controls whether GRUB enforces digital signature
-validation on loaded files. @xref{Using digital signatures}.
+This variable controls whether GRUB enforces GPG-style digital signature
+validation on loaded files. @xref{Using GPG-style digital signatures}.
@node chosen
@subsection chosen
@@ -3937,6 +3945,7 @@ you forget a command, you can run the command @command{help}
* date:: Display or set current date and time
* devicetree:: Load a device tree blob
* distrust:: Remove a pubkey from trusted keys
+* distrust_certificate:: Remove a certificate from the list of trusted certificates
* drivemap:: Map a drive to another
* echo:: Display a line of text
* eval:: Evaluate agruments as GRUB commands
@@ -3953,6 +3962,7 @@ you forget a command, you can run the command @command{help}
* keystatus:: Check key modifier status
* linux:: Load a Linux kernel
* linux16:: Load a Linux kernel (16-bit mode)
+* list_certificates:: List trusted certificates
* list_env:: List variables in environment block
* list_trusted:: List trusted public keys
* load_env:: Load variables from environment block
@@ -3990,9 +4000,11 @@ you forget a command, you can run the command @command{help}
* test:: Check file types and compare values
* true:: Do nothing, successfully
* trust:: Add public key to list of trusted keys
+* trust_certificate:: Add an x509 certificate to the list of trusted certificates
* unset:: Unset an environment variable
* uppermem:: Set the upper memory size
@comment * vbeinfo:: List available video modes
+* verify_appended:: Verify appended digital signature
* verify_detached:: Verify detached digital signature
* videoinfo:: List available video modes
@comment * xen_*:: Xen boot commands for AArch64
@@ -4284,9 +4296,28 @@ These keys are used to validate signatures when environment variable
@code{check_signatures} is set to @code{enforce}
(@pxref{check_signatures}), and by some invocations of
@command{verify_detached} (@pxref{verify_detached}). @xref{Using
-digital signatures}, for more information.
+GPG-style digital signatures}, for more information.
@end deffn
+
+@node distrust_certificate
+@subsection distrust_certificate
+
+@deffn Command distrust_certificate cert_number
+Remove the x509 certificate numbered @var{cert_number} from GRUB's keyring of
+trusted x509 certificates for verifying appended signatures.
+
+@var{cert_number} is the certificate number as listed by
+@command{list_certificates} (@pxref{list_certificates}).
+
+These certificates are used to validate appended signatures when environment
+variable @code{check_appended_signatures} is set to @code{enforce}
+(@pxref{check_appended_signatures}), and by @command{verify_appended}
+(@pxref{verify_appended}). See @xref{Using appended signatures} for more
+information.
+@end deffn
+
+
@node drivemap
@subsection drivemap
@@ -4544,6 +4575,21 @@ This command is only available on x86 systems.
@end deffn
+@node list_certificates
+@subsection list_certificates
+
+@deffn Command list_certificates
+List all x509 certificates trusted by GRUB for validating appended signatures.
+The output is a numbered list of certificates, showing the certificate's serial
+number and Common Name.
+
+The certificate number can be used as an argument to
+@command{distrust_certificate} (@pxref{distrust_certificate}).
+
+See @xref{Using appended signatures} for more information.
+@end deffn
+
+
@node list_env
@subsection list_env
@@ -4563,7 +4609,7 @@ The output is in GPG's v4 key fingerprint format (i.e., the output of
@code{gpg --fingerprint}). The least significant four bytes (last
eight hexadecimal digits) can be used as an argument to
@command{distrust} (@pxref{distrust}).
-@xref{Using digital signatures}, for more information about uses for
+@xref{Using GPG-style digital signatures}, for more information about uses for
these keys.
@end deffn
@@ -4598,8 +4644,12 @@ When used with care, @option{--skip-sig} and the whitelist enable an
administrator to configure a system to boot only signed
configurations, but to allow the user to select from among multiple
configurations, and to enable ``one-shot'' boot attempts and
-``savedefault'' behavior. @xref{Using digital signatures}, for more
+``savedefault'' behavior. @xref{Using GPG-style digital signatures}, for more
information.
+
+Extra care should be taken when combining this command with appended signatures
+(@pxref{Using appended signatures}), as this file is not validated by an
+appended signature and could set @code{check_appended_signatures=no}.
@end deffn
@@ -4903,7 +4953,7 @@ read. It is possible to modify a digitally signed environment block
file from within GRUB using this command, such that its signature will
no longer be valid on subsequent boots. Care should be taken in such
advanced configurations to avoid rendering the system
-unbootable. @xref{Using digital signatures}, for more information.
+unbootable. @xref{Using GPG-style digital signatures}, for more information.
@end deffn
@@ -5228,11 +5278,31 @@ signatures when environment variable @code{check_signatures} is set to
must itself be properly signed. The @option{--skip-sig} option can be
used to disable signature-checking when reading @var{pubkey_file}
itself. It is expected that @option{--skip-sig} is useful for testing
-and manual booting. @xref{Using digital signatures}, for more
+and manual booting. @xref{Using GPG-style digital signatures}, for more
information.
@end deffn
+@node trust_certificate
+@subsection trust_certificate
+
+@deffn Command trust_certificate x509_certificate
+Read an DER-formatted x509 certificate from the file @var{x509_certificate}
+and add it to GRUB's internal list of trusted x509 certificates. These
+certificates are used to validate appended signatures when the environment
+variable @code{check_appended_signatures} is set to @code{enforce}.
+
+Note that if @code{check_appended_signatures} is set to @code{enforce}
+when @command{trust_certificate} is executed, then @var{x509_certificate}
+must itself bear an appended signature. (It is not sufficient that
+@var{x509_certificate} be signed by a trusted certificate according to the
+x509 rules: grub does not include support for validating signatures within x509
+certificates themselves.)
+
+See @xref{Using appended signatures} for more information.
+@end deffn
+
+
@node unset
@subsection unset
@@ -5257,6 +5327,18 @@ only on PC BIOS platforms.
@end deffn
@end ignore
+@node verify_appended
+@subsection verify_appended
+
+@deffn Command verify_appended file
+Verifies an appended signature on @var{file} against the trusted certificates
+known to GRUB (See @pxref{list_certificates}, @pxref{trust_certificate}, and
+@pxref{distrust_certificate}).
+
+Exit code @code{$?} is set to 0 if the signature validates
+successfully. If validation fails, it is set to a non-zero value.
+See @xref{Using appended signatures}, for more information.
+@end deffn
@node verify_detached
@subsection verify_detached
@@ -5275,7 +5357,7 @@ tried.
Exit code @code{$?} is set to 0 if the signature validates
successfully. If validation fails, it is set to a non-zero value.
-@xref{Using digital signatures}, for more information.
+@xref{Using GPG-style digital signatures}, for more information.
@end deffn
@node videoinfo
@@ -5636,11 +5718,12 @@ environment variables and commands are listed in the same order.
@chapter Security
@menu
-* Authentication and authorisation:: Users and access control
-* Using digital signatures:: Booting digitally signed code
-* Signing GRUB itself:: Ensuring the integrity of the GRUB core image
-* UEFI secure boot and shim:: Booting digitally signed PE files
-* Measured Boot:: Measuring boot components
+* Authentication and authorisation:: Users and access control
+* Using GPG-style digital signatures:: Booting digitally signed code
+* Using appended signatures:: An alternative approach to booting digitally signed code
+* Signing GRUB itself:: Ensuring the integrity of the GRUB core image
+* UEFI secure boot and shim:: Booting digitally signed PE files
+* Measured Boot:: Measuring boot components
@end menu
@node Authentication and authorisation
@@ -5713,8 +5796,8 @@ generating configuration files with authentication. You can use
adding @kbd{set superusers=} and @kbd{password} or @kbd{password_pbkdf2}
commands.
-@node Using digital signatures
-@section Using digital signatures in GRUB
+@node Using GPG-style digital signatures
+@section Using GPG-style digital signatures in GRUB
GRUB's @file{core.img} can optionally provide enforcement that all files
subsequently read from disk are covered by a valid digital signature.
@@ -5797,6 +5880,82 @@ or BIOS) configuration to cause the machine to boot from a different
(attacker-controlled) device. GRUB is at best only one link in a
secure boot chain.
+@node Using appended signatures
+@section Using appended signatures in GRUB
+
+GRUB supports verifying Linux-style 'appended signatures' for secure boot.
+Appended signatures are PKCS#7 messages containing a signature over the
+contents of a file, plus some metadata, appended to the end of a file. A file
+with an appended signature ends with the magic string:
+
+@example
+~Module signature appended~\n
+@end example
+
+where @code{\n} represents the carriage-return character, @code{0x0a}.
+
+To enable appended signature verification, load the appendedsig module and an
+x509 certificate for verification. Building the appendedsig module into the
+core grub image is recommended.
+
+Certificates can be managed at boot time using the @pxref{trust_certificate},
+@pxref{distrust_certificate} and @pxref{list_certificates} commands.
+Certificates can also be built in to the core image using the @code{--x509}
+parameter to @command{grub-install} or @command{grub-mkimage}.
+
+A file can be explictly verified using the @pxref{verify_appended} command.
+
+Only signatures made with the SHA-256 or SHA-512 hash algorithm are supported,
+and only RSA signatures are supported.
+
+A file can be signed with the @command{sign-file} utility supplied with the
+Linux kernel source. For example, if you have @code{signing.key} as the private
+key and @code{certificate.der} as the x509 certificate containing the public key:
+
+@example
+sign-file SHA256 signing.key certificate.der vmlinux vmlinux.signed
+@end example
+
+Enforcement of signature verification is controlled by the
+@code{check_appended_signatures} variable. Verification will only take place
+when files are loaded if the variable is set to @code{enforce}. If a
+certificate is built into the grub core image with the @code{--x509} parameter,
+the variable will be automatically set to @code{enforce} when the appendedsig
+module is loaded.
+
+Unlike GPG-style signatures, not all files loaded by GRUB are required to be
+signed. Once verification is turned on, the following file types must carry
+appended signatures:
+
+@enumerate
+@item Linux, Multiboot, BSD, XNU and Plan9 kernels
+@item Grub modules, except those built in to the core image
+@item Any new certificate files to be trusted
+@end enumerate
+
+ACPI tables and Device Tree images will not be checked for appended signatures
+but must be verified by another mechanism such as GPG-style signatures before
+they will be loaded.
+
+No attempt is made to validate any other file type. In particular,
+chain-loaded binaries are not verified - if your platform supports
+chain-loading and this cannot be disabled, consider an alternative secure
+boot mechanism.
+
+As with GPG-style appended signatures, signature checking does @strong{not}
+stop an attacker with console access from dropping manually to the GRUB
+console and executing:
+
+@example
+set check_appended_signatures=no
+@end example
+
+Refer to the section on password-protecting GRUB (@pxref{Authentication
+and authorisation}) for more information on preventing this.
+
+Additionally, special care must be taken around the @command{loadenv} command,
+which can be used to turn off @code{check_appended_signature}.
+
@node Signing GRUB itself
@section Signing GRUB itself

137
0304-ieee1275-link-appended-signature-enforcement-to-ibm-.patch Normal file
View File

@ -0,0 +1,137 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Mon, 28 Sep 2020 11:11:17 +1000
Subject: [PATCH] ieee1275: link appended-signature enforcement to
/ibm,secure-boot
If the 'ibm,secure-boot' property of the root node is 2 or greater,
require that the kernel pass appended-signature verification.
Do not consider the presence of a certificate to enforce verification.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/commands/appendedsig/appendedsig.c | 44 +++++++++++++++++++++-------
grub-core/kern/ieee1275/init.c | 26 ++++++++++++++++
2 files changed, 60 insertions(+), 10 deletions(-)
diff --git a/grub-core/commands/appendedsig/appendedsig.c b/grub-core/commands/appendedsig/appendedsig.c
index 1fbc942254a..6efe58ce8b2 100644
--- a/grub-core/commands/appendedsig/appendedsig.c
+++ b/grub-core/commands/appendedsig/appendedsig.c
@@ -95,10 +95,24 @@ static char *
grub_env_write_sec (struct grub_env_var *var __attribute__((unused)),
const char *val)
{
+ if (check_sigs == 2)
+ return grub_strdup ("forced");
check_sigs = (*val == '1') || (*val == 'e');
return grub_strdup (check_sigs ? "enforce" : "no");
}
+static const char *
+grub_env_read_sec (struct grub_env_var *var __attribute__ ((unused)),
+ const char *val __attribute__ ((unused)))
+{
+ if (check_sigs == 2)
+ return "forced";
+ else if (check_sigs == 1)
+ return "enforce";
+ else
+ return "no";
+}
+
static grub_err_t
read_cert_from_file (grub_file_t f, struct x509_certificate *certificate)
{
@@ -552,14 +566,20 @@ GRUB_MOD_INIT (appendedsig)
val = grub_env_get ("check_appended_signatures");
grub_dprintf ("appendedsig", "check_appended_signatures='%s'\n", val);
- if (val && (val[0] == '1' || val[0] == 'e'))
- check_sigs = 1;
- else
- check_sigs = 0;
+ if (val)
+ {
+ if (val[0] == '2' || val[0] == 'f')
+ check_sigs = 2;
+ else if (val[0] == '1' || val[0] == 'e')
+ check_sigs = 1;
+ else
+ check_sigs = 0;
+ }
grub_trusted_key = NULL;
- grub_register_variable_hook ("check_appended_signatures", 0,
+ grub_register_variable_hook ("check_appended_signatures",
+ grub_env_read_sec,
grub_env_write_sec);
grub_env_export ("check_appended_signatures");
@@ -603,11 +623,15 @@ GRUB_MOD_INIT (appendedsig)
grub_trusted_key = pk;
}
- if (!val || val[0] == '\0')
- {
- grub_env_set ("check_appended_signatures",
- grub_trusted_key ? "enforce" : "no");
- }
+ /*
+ * When controlled by ibm,secure-boot, we don't want the presence of
+ * a certificate to enforce secure boot.
+ * if (!val || val[0] == '\0')
+ * {
+ * grub_env_set ("check_appended_signatures",
+ * grub_trusted_key ? "enforce" : "no");
+ * }
+ */
cmd_trust =
grub_register_command ("trust_certificate", grub_cmd_trust,
diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index d84fba44d10..9ffc7919da8 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -269,6 +269,30 @@ grub_parse_cmdline (void)
}
}
+static void
+grub_get_ieee1275_secure_boot (void)
+{
+ grub_ieee1275_phandle_t root;
+ int rc;
+ grub_uint32_t is_sb;
+
+ grub_ieee1275_finddevice ("/", &root);
+
+ rc = grub_ieee1275_get_integer_property (root, "ibm,secure-boot", &is_sb,
+ sizeof (is_sb), 0);
+
+ /* ibm,secure-boot:
+ * 0 - disabled
+ * 1 - audit
+ * 2 - enforce
+ * 3 - enforce + OS-specific behaviour
+ *
+ * We only support enforce.
+ */
+ if (rc >= 0 && is_sb >= 2)
+ grub_env_set("check_appended_signatures", "forced");
+}
+
grub_addr_t grub_modbase;
void
@@ -294,6 +318,8 @@ grub_machine_init (void)
#else
grub_install_get_time_ms (grub_rtc_get_time_ms);
#endif
+
+ grub_get_ieee1275_secure_boot ();
}
void

15
grub.macros
View File

@ -24,6 +24,7 @@
-e 's/--param=ssp-buffer-size=4//g' \\\ -e 's/--param=ssp-buffer-size=4//g' \\\
-e 's/-mregparm=3/-mregparm=4/g' \\\ -e 's/-mregparm=3/-mregparm=4/g' \\\
-e 's/-fexceptions//g' \\\ -e 's/-fexceptions//g' \\\
-e 's/-fcf-protection//g' \\\
-e 's/-fasynchronous-unwind-tables//g' \\\ -e 's/-fasynchronous-unwind-tables//g' \\\
-e 's/^/ -fno-strict-aliasing /' \\\ -e 's/^/ -fno-strict-aliasing /' \\\
%{nil} %{nil}
@ -505,8 +506,7 @@ if [ -f $RPM_BUILD_ROOT%{_infodir}/grub-dev.info ]; then \
rm -f $RPM_BUILD_ROOT%{_infodir}/grub-dev.info \ rm -f $RPM_BUILD_ROOT%{_infodir}/grub-dev.info \
fi \ fi \
find $RPM_BUILD_ROOT -iname "*.module" -exec chmod a-x {} '\;' \ find $RPM_BUILD_ROOT -iname "*.module" -exec chmod a-x {} '\;' \
touch $RPM_BUILD_ROOT%{efi_esp_dir}/grub.cfg \ ln -s ../boot/%{name}/grub.cfg \\\
ln -sf ..%{efi_esp_dir}/grub.cfg \\\
$RPM_BUILD_ROOT%{_sysconfdir}/%{name}-efi.cfg \ $RPM_BUILD_ROOT%{_sysconfdir}/%{name}-efi.cfg \
install -m 700 %{2} $RPM_BUILD_ROOT%{efi_esp_dir}/%{2} \ install -m 700 %{2} $RPM_BUILD_ROOT%{efi_esp_dir}/%{2} \
install -m 700 %{3} $RPM_BUILD_ROOT%{efi_esp_dir}/%{3} \ install -m 700 %{3} $RPM_BUILD_ROOT%{efi_esp_dir}/%{3} \
@ -516,9 +516,7 @@ install -D -m 700 %{2} $RPM_BUILD_ROOT%{efi_esp_boot}/BOOTARM.EFI \
install -D -m 700 unicode.pf2 \\\ install -D -m 700 unicode.pf2 \\\
$RPM_BUILD_ROOT%{efi_esp_dir}/fonts/unicode.pf2 \ $RPM_BUILD_ROOT%{efi_esp_dir}/fonts/unicode.pf2 \
${RPM_BUILD_ROOT}/%{_bindir}/%{name}-editenv \\\ ${RPM_BUILD_ROOT}/%{_bindir}/%{name}-editenv \\\
${RPM_BUILD_ROOT}%{efi_esp_dir}/grubenv create \ ${RPM_BUILD_ROOT}/boot/%{name}/grubenv create \
ln -sf ../efi/EFI/%{efi_vendor}/grubenv \\\
$RPM_BUILD_ROOT/boot/grub2/grubenv \
%{expand:%%do_install_protected_file %{name}-%{package_arch}} \ %{expand:%%do_install_protected_file %{name}-%{package_arch}} \
cd .. \ cd .. \
%{nil} %{nil}
@ -532,8 +530,6 @@ fi \
if [ -f $RPM_BUILD_ROOT%{_infodir}/grub-dev.info ]; then \ if [ -f $RPM_BUILD_ROOT%{_infodir}/grub-dev.info ]; then \
rm -f $RPM_BUILD_ROOT%{_infodir}/grub-dev.info \ rm -f $RPM_BUILD_ROOT%{_infodir}/grub-dev.info \
fi \ fi \
ln -s ../boot/%{name}/grub.cfg \\\
${RPM_BUILD_ROOT}%{_sysconfdir}/grub2.cfg \
if [ -f $RPM_BUILD_ROOT/%{_libdir}/grub/%{1}/grub2.chrp ]; then \ if [ -f $RPM_BUILD_ROOT/%{_libdir}/grub/%{1}/grub2.chrp ]; then \
mv $RPM_BUILD_ROOT/%{_libdir}/grub/%{1}/grub2.chrp \\\ mv $RPM_BUILD_ROOT/%{_libdir}/grub/%{1}/grub2.chrp \\\
$RPM_BUILD_ROOT/%{_libdir}/grub/%{1}/grub.chrp \ $RPM_BUILD_ROOT/%{_libdir}/grub/%{1}/grub.chrp \
@ -582,6 +578,8 @@ touch ${RPM_BUILD_ROOT}%{_sysconfdir}/default/grub \
ln -sf ../default/grub \\\ ln -sf ../default/grub \\\
${RPM_BUILD_ROOT}%{_sysconfdir}/sysconfig/grub \ ${RPM_BUILD_ROOT}%{_sysconfdir}/sysconfig/grub \
touch ${RPM_BUILD_ROOT}/boot/%{name}/grub.cfg \ touch ${RPM_BUILD_ROOT}/boot/%{name}/grub.cfg \
ln -s ../boot/%{name}/grub.cfg \\\
${RPM_BUILD_ROOT}%{_sysconfdir}/grub2.cfg \
%{nil} %{nil}
%define define_legacy_variant_files() \ %define define_legacy_variant_files() \
@ -608,6 +606,7 @@ touch ${RPM_BUILD_ROOT}/boot/%{name}/grub.cfg \
%define define_efi_variant_files() \ %define define_efi_variant_files() \
%{expand:%%files %{1}} \ %{expand:%%files %{1}} \
%defattr(0700,root,root,-) \ %defattr(0700,root,root,-) \
%config(noreplace) %{_sysconfdir}/%{name}.cfg \
%config(noreplace) %{_sysconfdir}/%{name}-efi.cfg \ %config(noreplace) %{_sysconfdir}/%{name}-efi.cfg \
%attr(0700,root,root)%{efi_esp_dir}/%{2} \ %attr(0700,root,root)%{efi_esp_dir}/%{2} \
%ifarch %{arm} \ %ifarch %{arm} \
@ -615,9 +614,9 @@ touch ${RPM_BUILD_ROOT}/boot/%{name}/grub.cfg \
%endif \ %endif \
%dir %attr(0700,root,root)%{efi_esp_dir}/fonts \ %dir %attr(0700,root,root)%{efi_esp_dir}/fonts \
%dir %attr(0700,root,root)/boot/loader/entries \ %dir %attr(0700,root,root)/boot/loader/entries \
%ghost %config(noreplace) /boot/%{name}/grub.cfg \
%ghost %config(noreplace) %attr(0700,root,root)%{efi_esp_dir}/grub.cfg \ %ghost %config(noreplace) %attr(0700,root,root)%{efi_esp_dir}/grub.cfg \
%config(noreplace) %verify(not size mode md5 mtime) /boot/grub2/grubenv \ %config(noreplace) %verify(not size mode md5 mtime) /boot/grub2/grubenv \
%ghost %config(noreplace) %attr(0700,root,root)%{efi_esp_dir}/grubenv \
%attr(0644,root,root) %config(noreplace) /etc/dnf/protected.d/%{name}-%{1}.conf \ %attr(0644,root,root) %config(noreplace) /etc/dnf/protected.d/%{name}-%{1}.conf \
%{expand:%if 0%{?without_efi_modules} \ %{expand:%if 0%{?without_efi_modules} \
%exclude %{_libdir}/grub/%{6} \ %exclude %{_libdir}/grub/%{6} \

25
grub.patches
View File

@ -277,3 +277,28 @@ Patch0276: 0276-ieee1275-powerpc-implements-fibre-channel-discovery-.patch
Patch0277: 0277-ieee1275-powerpc-enables-device-mapper-discovery.patch Patch0277: 0277-ieee1275-powerpc-enables-device-mapper-discovery.patch
Patch0278: 0278-btrfs-Add-support-for-new-RAID1C34-profiles.patch Patch0278: 0278-btrfs-Add-support-for-new-RAID1C34-profiles.patch
Patch0279: 0279-at_keyboard-use-set-1-when-keyboard-is-in-Translate-.patch Patch0279: 0279-at_keyboard-use-set-1-when-keyboard-is-in-Translate-.patch
Patch0280: 0280-Add-at_keyboard_fallback_set-var-to-force-the-set-ma.patch
Patch0281: 0281-verifiers-Fix-calling-uninitialized-function-pointer.patch
Patch0282: 0282-ieee1275-claim-up-to-256MB-memory.patch
Patch0283: 0283-Add-suport-for-signing-grub-with-an-appended-signatu.patch
Patch0284: 0284-docs-grub-Document-signing-grub-under-UEFI.patch
Patch0285: 0285-docs-grub-Document-signing-grub-with-an-appended-sig.patch
Patch0286: 0286-docs-grub-grub-install-is-no-longer-a-shell-script.patch
Patch0287: 0287-docs-grub-pubkey-has-been-supported-for-some-time.patch
Patch0288: 0288-dl-provide-a-fake-grub_dl_set_persistent-for-the-emu.patch
Patch0289: 0289-verifiers-provide-unsafe-module-list.patch
Patch0290: 0290-pgp-factor-out-rsa_pad.patch
Patch0291: 0291-crypto-move-storage-for-grub_crypto_pk_-to-crypto.c.patch
Patch0292: 0292-posix_wrap-tweaks-in-preparation-for-libtasn1.patch
Patch0293: 0293-libtasn1-import-libtasn1-4.16.0.patch
Patch0294: 0294-libtasn1-disable-code-not-needed-in-grub.patch
Patch0295: 0295-libtasn1-changes-for-grub-compatibility.patch
Patch0296: 0296-libtasn1-compile-into-asn1-module.patch
Patch0297: 0297-test_asn1-test-module-for-libtasn1.patch
Patch0298: 0298-grub-install-support-embedding-x509-certificates.patch
Patch0299: 0299-appended-signatures-import-GNUTLS-s-ASN.1-descriptio.patch
Patch0300: 0300-appended-signatures-parse-PKCS-7-signedData-and-X.50.patch
Patch0301: 0301-appended-signatures-support-verifying-appended-signa.patch
Patch0302: 0302-appended-signatures-verification-tests.patch
Patch0303: 0303-appended-signatures-documentation.patch
Patch0304: 0304-ieee1275-link-appended-signature-enforcement-to-ibm-.patch

10
grub2.spec
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@ -14,7 +14,7 @@
Name: grub2 Name: grub2
Epoch: 1 Epoch: 1
Version: 2.04 Version: 2.04
Release: 34%{?dist} Release: 35%{?dist}
Summary: Bootloader with support for Linux, Multiboot and more Summary: Bootloader with support for Linux, Multiboot and more
License: GPLv3+ License: GPLv3+
URL: http://www.gnu.org/software/grub/ URL: http://www.gnu.org/software/grub/
@ -518,6 +518,14 @@ rm -r /boot/grub2.tmp/ || :
%endif %endif
%changelog %changelog
* Mon Feb 08 2021 Javier Martinez Canillas <javierm@redhat.com> - 2.04-35
- Remove -fcf-protection compiler flag to allow i386 builds (law)
Related: rhbz#1915452
- Unify GRUB configuration file location across all platforms
Related: rhbz#1918817
- Add 'at_keyboard_fallback_set' var to force the set manually (rmetrich)
- Add appended signatures support for ppc64le LPAR Secure Boot (daxtens)
* Tue Jan 12 2021 Javier Martinez Canillas <javierm@redhat.com> - 2.04-34 * Tue Jan 12 2021 Javier Martinez Canillas <javierm@redhat.com> - 2.04-34
- at_keyboard: use set 1 when keyboard is in Translate mode (rmetrich) - at_keyboard: use set 1 when keyboard is in Translate mode (rmetrich)