diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2014-07-22 18:09:21 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2014-07-22 18:09:21 +0000 |
| commit | ee5a90dfd02234d2cbb3038d818c4aaecd2c337d (patch) | |
| tree | e51434cd3b87c2a20dbd339131be40fed17a320d /lib/libcrypto/des | |
| parent | f928d1de2411dafe69c50d139c18c7653cabc751 (diff) | |
In DES_random_key(), force the generated key to the odd parity before checking
it is not one of the weak and semi-weak keys.
Even though the probability of generating a weak key with incorrect parity is
abysmally small, there is no reason to be correct (although, if you're in a
need for fresh DES keys nowadays, you should seriously consider switching to
a stronger symmetric cipher algorithm).
ok beck@
Diffstat (limited to 'lib/libcrypto/des')
| -rw-r--r-- | lib/libcrypto/des/rand_key.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/lib/libcrypto/des/rand_key.c b/lib/libcrypto/des/rand_key.c index 2dba949bad9..727d36f488e 100644 --- a/lib/libcrypto/des/rand_key.c +++ b/lib/libcrypto/des/rand_key.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rand_key.c,v 1.6 2014/06/12 15:49:28 deraadt Exp $ */ +/* $OpenBSD: rand_key.c,v 1.7 2014/07/22 18:09:20 miod Exp $ */ /* ==================================================================== * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. * @@ -56,13 +56,13 @@ #include <openssl/des.h> #include <openssl/rand.h> -int DES_random_key(DES_cblock *ret) - { - do - { +int +DES_random_key(DES_cblock *ret) +{ + do { if (RAND_bytes((unsigned char *)ret, sizeof(DES_cblock)) != 1) return (0); - } while (DES_is_weak_key(ret)); - DES_set_odd_parity(ret); + DES_set_odd_parity(ret); + } while (DES_is_weak_key(ret)); return (1); - } +} |