clevis/0005-luks-define-max-entropy-bits-for-pwmake.patch
Sergio Arroutbi b7dbfb6f3e Backport upstream fixes
6e48a1c: luks-edit: remove unnecessary 2>/dev/null
3f879a3: Avoid invalid message for clevis command
e0e92f8: Fix typo in error messages
47b01ab: Improve boot performance by removing key check
f5786d3: Notify error url on server connect fail
f621575: luks: fix typo when adding a pending device
0589c14: luks: ignore empty & comment lines in crypttab
3bb852b: luks: define max entropy bits for pwmake

Signed-off-by: Sergio Arroutbi <sarroutb@redhat.com>
2022-12-16 14:45:23 +01:00

43 lines
1.7 KiB
Diff

--- clevis-18.ori/src/clevis.1.adoc 2021-04-15 13:00:19.965065700 +0200
+++ clevis-18/src/clevis.1.adoc 2022-12-16 11:25:48.407264932 +0100
@@ -101,7 +101,7 @@
This command performs four steps:
-1. Creates a new key with the same entropy as the LUKS master key.
+1. Creates a new key with the same entropy as the LUKS master key -- maximum entropy bits is 256.
2. Encrypts the new key with Clevis.
3. Stores the Clevis JWE in the LUKS header.
4. Enables the new key for use with LUKS.
--- clevis-18.ori/src/luks/clevis-luks-common-functions.in 2022-12-16 11:23:23.982459214 +0100
+++ clevis-18/src/luks/clevis-luks-common-functions.in 2022-12-16 14:39:32.694114153 +0100
@@ -852,6 +852,7 @@
[ -z "${DEV}" ] && return 1
local dump filter bits
+ local MAX_ENTROPY_BITS=256 # Maximum allowed by pwmake.
dump=$(cryptsetup luksDump "${DEV}")
if cryptsetup isLuks --type luks1 "${DEV}"; then
filter="$(echo "${dump}" | sed -rn 's|MK bits:[ \t]*([0-9]+)|\1|p')"
@@ -863,6 +864,9 @@
fi
bits="$(echo -n "${filter}" | sort -n | tail -n 1)"
+ if [ "${bits}" -gt "${MAX_ENTROPY_BITS}" ]; then
+ bits="${MAX_ENTROPY_BITS}"
+ fi
pwmake "${bits}"
}
--- clevis-18.ori/src/luks/clevis-luks-bind.1.adoc 2022-12-16 11:23:23.982459214 +0100
+++ clevis-18/src/luks/clevis-luks-bind.1.adoc 2022-12-16 14:41:33.502788100 +0100
@@ -20,7 +20,7 @@
This command performs four steps:
-1. Creates a new key with the same entropy as the LUKS master key.
+1. Creates a new key with the same entropy as the LUKS master key -- maximum entropy bits is 256.
2. Encrypts the new key with Clevis.
3. Stores the Clevis JWE in the LUKS header.
4. Enables the new key for use with LUKS.