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improve reseeding and seed source (documentation)

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This commit is contained in:
Jan F 2011-03-28 16:40:17 +02:00
parent 91d3b39c03
commit 0553df85b0
3 changed files with 133 additions and 133 deletions
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134
openssh-5.8p1-entropy.patch
View File

@ -1,6 +1,6 @@
diff -up openssh-5.8p1/entropy.c.entropy openssh-5.8p1/entropy.c
--- openssh-5.8p1/entropy.c.entropy 2011-01-13 11:05:29.000000000 +0100
+++ openssh-5.8p1/entropy.c 2011-03-22 18:26:41.013648606 +0100
+++ openssh-5.8p1/entropy.c 2011-03-28 16:22:37.422648742 +0200
@@ -144,6 +144,9 @@ seed_rng(void)
memset(buf, '\0', sizeof(buf));
@ -13,7 +13,7 @@ diff -up openssh-5.8p1/entropy.c.entropy openssh-5.8p1/entropy.c
}
diff -up openssh-5.8p1/openbsd-compat/Makefile.in.entropy openssh-5.8p1/openbsd-compat/Makefile.in
--- openssh-5.8p1/openbsd-compat/Makefile.in.entropy 2010-10-07 13:19:24.000000000 +0200
+++ openssh-5.8p1/openbsd-compat/Makefile.in 2011-03-22 18:28:31.835648739 +0100
+++ openssh-5.8p1/openbsd-compat/Makefile.in 2011-03-28 16:22:37.484648793 +0200
@@ -20,7 +20,7 @@ OPENBSD=base64.o basename.o bindresvport
COMPAT=bsd-arc4random.o bsd-asprintf.o bsd-closefrom.o bsd-cray.o bsd-cygwin_util.o bsd-getpeereid.o bsd-misc.o bsd-nextstep.o bsd-openpty.o bsd-poll.o bsd-snprintf.o bsd-statvfs.o bsd-waitpid.o fake-rfc2553.o openssl-compat.o xmmap.o xcrypt.o
@ -24,8 +24,8 @@ diff -up openssh-5.8p1/openbsd-compat/Makefile.in.entropy openssh-5.8p1/openbsd-
.c.o:
$(CC) $(CFLAGS) $(CPPFLAGS) -c $<
diff -up openssh-5.8p1/openbsd-compat/port-linux-prng.c.entropy openssh-5.8p1/openbsd-compat/port-linux-prng.c
--- openssh-5.8p1/openbsd-compat/port-linux-prng.c.entropy 2011-03-22 18:27:57.422648991 +0100
+++ openssh-5.8p1/openbsd-compat/port-linux-prng.c 2011-03-22 18:27:57.401648964 +0100
--- openssh-5.8p1/openbsd-compat/port-linux-prng.c.entropy 2011-03-28 16:22:37.508648739 +0200
+++ openssh-5.8p1/openbsd-compat/port-linux-prng.c 2011-03-28 16:22:37.520650578 +0200
@@ -0,0 +1,56 @@
+/* $Id: port-linux.c,v 1.11.4.2 2011/02/04 00:43:08 djm Exp $ */
+
@ -83,3 +83,129 @@ diff -up openssh-5.8p1/openbsd-compat/port-linux-prng.c.entropy openssh-5.8p1/op
+ fatal ("EOF reading %s", random);
+ }
+}
diff -up openssh-5.8p1/ssh.1.entropy openssh-5.8p1/ssh.1
--- openssh-5.8p1/ssh.1.entropy 2010-11-20 05:21:03.000000000 +0100
+++ openssh-5.8p1/ssh.1 2011-03-28 16:22:37.621648461 +0200
@@ -1250,6 +1250,15 @@ For more information, see the
.Cm PermitUserEnvironment
option in
.Xr sshd_config 5 .
+.It Ev SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.Sh FILES
.Bl -tag -width Ds -compact
.It Pa ~/.rhosts
diff -up openssh-5.8p1/ssh-add.1.entropy openssh-5.8p1/ssh-add.1
--- openssh-5.8p1/ssh-add.1.entropy 2010-11-05 00:20:14.000000000 +0100
+++ openssh-5.8p1/ssh-add.1 2011-03-28 16:22:37.674648474 +0200
@@ -157,6 +157,15 @@ to make this work.)
Identifies the path of a
.Ux Ns -domain
socket used to communicate with the agent.
+.It Ev SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.El
.Sh FILES
.Bl -tag -width Ds
diff -up openssh-5.8p1/ssh-agent.1.entropy openssh-5.8p1/ssh-agent.1
--- openssh-5.8p1/ssh-agent.1.entropy 2010-12-01 01:50:35.000000000 +0100
+++ openssh-5.8p1/ssh-agent.1 2011-03-28 16:22:37.729648529 +0200
@@ -198,6 +198,18 @@ sockets used to contain the connection t
These sockets should only be readable by the owner.
The sockets should get automatically removed when the agent exits.
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-add 1 ,
diff -up openssh-5.8p1/sshd.8.entropy openssh-5.8p1/sshd.8
--- openssh-5.8p1/sshd.8.entropy 2010-11-05 00:20:14.000000000 +0100
+++ openssh-5.8p1/sshd.8 2011-03-28 16:22:37.789648521 +0200
@@ -937,6 +937,18 @@ concurrently for different ports, this c
started last).
The content of this file is not sensitive; it can be world-readable.
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.Sh SEE ALSO
.Xr scp 1 ,
.Xr sftp 1 ,
diff -up openssh-5.8p1/ssh-keygen.1.entropy openssh-5.8p1/ssh-keygen.1
--- openssh-5.8p1/ssh-keygen.1.entropy 2010-11-05 00:20:14.000000000 +0100
+++ openssh-5.8p1/ssh-keygen.1 2011-03-28 16:22:37.845648487 +0200
@@ -655,6 +655,18 @@ Contains Diffie-Hellman groups used for
The file format is described in
.Xr moduli 5 .
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-add 1 ,
diff -up openssh-5.8p1/ssh-keysign.8.entropy openssh-5.8p1/ssh-keysign.8
--- openssh-5.8p1/ssh-keysign.8.entropy 2010-08-31 14:41:14.000000000 +0200
+++ openssh-5.8p1/ssh-keysign.8 2011-03-28 16:22:37.900648475 +0200
@@ -78,6 +78,18 @@ must be set-uid root if host-based authe
If these files exist they are assumed to contain public certificate
information corresponding with the private keys above.
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-keygen 1 ,

126
openssh-5.8p1-entropy2.patch
View File

@ -1,126 +0,0 @@
diff -up openssh-5.8p1/ssh.1.entropy2 openssh-5.8p1/ssh.1
--- openssh-5.8p1/ssh.1.entropy2 2010-11-20 05:21:03.000000000 +0100
+++ openssh-5.8p1/ssh.1 2011-03-27 21:42:48.945797624 +0200
@@ -1250,6 +1250,15 @@ For more information, see the
.Cm PermitUserEnvironment
option in
.Xr sshd_config 5 .
+.It Ev SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.Sh FILES
.Bl -tag -width Ds -compact
.It Pa ~/.rhosts
diff -up openssh-5.8p1/ssh-add.1.entropy2 openssh-5.8p1/ssh-add.1
--- openssh-5.8p1/ssh-add.1.entropy2 2010-11-05 00:20:14.000000000 +0100
+++ openssh-5.8p1/ssh-add.1 2011-03-27 21:42:49.001659247 +0200
@@ -157,6 +157,15 @@ to make this work.)
Identifies the path of a
.Ux Ns -domain
socket used to communicate with the agent.
+.It Ev SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.El
.Sh FILES
.Bl -tag -width Ds
diff -up openssh-5.8p1/ssh-agent.1.entropy2 openssh-5.8p1/ssh-agent.1
--- openssh-5.8p1/ssh-agent.1.entropy2 2010-12-01 01:50:35.000000000 +0100
+++ openssh-5.8p1/ssh-agent.1 2011-03-27 21:42:49.056648910 +0200
@@ -198,6 +198,18 @@ sockets used to contain the connection t
These sockets should only be readable by the owner.
The sockets should get automatically removed when the agent exits.
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-add 1 ,
diff -up openssh-5.8p1/sshd.8.entropy2 openssh-5.8p1/sshd.8
--- openssh-5.8p1/sshd.8.entropy2 2010-11-05 00:20:14.000000000 +0100
+++ openssh-5.8p1/sshd.8 2011-03-27 21:42:49.121648754 +0200
@@ -937,6 +937,18 @@ concurrently for different ports, this c
started last).
The content of this file is not sensitive; it can be world-readable.
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.Sh SEE ALSO
.Xr scp 1 ,
.Xr sftp 1 ,
diff -up openssh-5.8p1/ssh-keygen.1.entropy2 openssh-5.8p1/ssh-keygen.1
--- openssh-5.8p1/ssh-keygen.1.entropy2 2010-11-05 00:20:14.000000000 +0100
+++ openssh-5.8p1/ssh-keygen.1 2011-03-27 21:42:49.178648710 +0200
@@ -655,6 +655,18 @@ Contains Diffie-Hellman groups used for
The file format is described in
.Xr moduli 5 .
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-add 1 ,
diff -up openssh-5.8p1/ssh-keysign.8.entropy2 openssh-5.8p1/ssh-keysign.8
--- openssh-5.8p1/ssh-keysign.8.entropy2 2010-08-31 14:41:14.000000000 +0200
+++ openssh-5.8p1/ssh-keysign.8 2011-03-27 21:43:47.960677527 +0200
@@ -78,6 +78,18 @@ must be set-uid root if host-based authe
If these files exist they are assumed to contain public certificate
information corresponding with the private keys above.
.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds -compact
+.Pp
+.It Pa SSH_USE_STRONG_RNG
+The reseeding of the OpenSSL random generator is usually done from
+.Cm /dev/urandom .
+If the
+.Cm SSH_USE_STRONG_RNG
+is set to
+.Cm 1 ,
+the OpenSSL random generator is reseeded from
+.Cm /dev/random .
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-keygen 1 ,

6
openssh.spec
View File

@ -71,7 +71,7 @@
# Do not forget to bump pam_ssh_agent_auth release if you rewind the main package release to 1
%define openssh_ver 5.8p1
%define openssh_rel 21
%define openssh_rel 22
%define pam_ssh_agent_ver 0.9.2
%define pam_ssh_agent_rel 30
@ -668,8 +668,8 @@ fi
%endif
%changelog
* Mon Mar 28 2011 Jan F. Chadima <jchadima@redhat.com> - 5.8p1-21 + 0.9.2-30
- improve reseeding and seed source (cocumentation)
* Mon Mar 28 2011 Jan F. Chadima <jchadima@redhat.com> - 5.8p1-22 + 0.9.2-30
- improve reseeding and seed source (documentation)
* Tue Mar 22 2011 Jan F. Chadima <jchadima@redhat.com> - 5.8p1-20 + 0.9.2-30
- use /dev/random or /dev/urandom for seeding prng