Use arc4random_buf() instead of RAND_bytes() or RAND_pseudo_bytes().

arc4random provides high quality pseudo-random numbers, hence there is no
need to differentiate between "strong" and "pseudo". Furthermore, the
arc4random_buf() function is guaranteed to succeed, which avoids the need
to check for and handle failure, simplifying the code.

It is worth noting that a number of the replaced RAND_bytes() and
RAND_pseudo_bytes() calls were missing return value checks and these
functions can fail for a number of reasons (at least in OpenSSL -
thankfully they were converted to wrappers around arc4random_buf() some
time ago in LibreSSL).

ok beck@ deraadt@ miod@

1 files changed, 1 insertions, 2 deletions

diff --git a/src/lib/libssl/t1_clnt.c b/src/lib/libssl/t1_clnt.c
index 3781063eb6..cb5f26a07c 100644
--- a/src/lib/libssl/t1_clnt.c
+++ b/src/lib/libssl/t1_clnt.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: t1_clnt.c,v 1.14 2014/08/10 14:42:56 jsing Exp $ */
+/* $OpenBSD: t1_clnt.c,v 1.15 2014/10/18 16:13:16 jsing Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -59,7 +59,6 @@
 #include <stdio.h>
 #include "ssl_locl.h"
 #include <openssl/buffer.h>
-#include <openssl/rand.h>
 #include <openssl/objects.h>
 #include <openssl/evp.h>