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| author |   deraadt <deraadt@openbsd.org> | 2017-05-02 03:59:44 +0000 |
|---|---|---|
| committer | deraadt <deraadt@openbsd.org> | 2017-05-02 03:59:44 +0000 |
| commit | 7de8a6843ca16b4f1c9d2a7eab4c71e8af96a4e6 (patch) | |
| tree | 3ea360fbba39840d58df496af1ccadf16612454f /lib/libcrypto/ecdsa/ecs_vrf.c | |
| parent | Matching vmd(8) part of previous diff (first part of vmctl send/receive). (diff) | |
| download | wireguard-openbsd-7de8a6843ca16b4f1c9d2a7eab4c71e8af96a4e6.tar.xz wireguard-openbsd-7de8a6843ca16b4f1c9d2a7eab4c71e8af96a4e6.zip | |
use freezero() instead of memset/explicit_bzero + free. Substantially
reduces conditional logic (-218, +82).
MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH cache alignment calculation bn/bn_exp.c
wasn'tt quite right. Two other tricky bits with ASN1_STRING_FLAG_NDEF and
BN_FLG_STATIC_DATA where the condition cannot be collapsed completely.
Passes regress. ok beck
Diffstat (limited to 'lib/libcrypto/ecdsa/ecs_vrf.c')
| -rw-r--r-- | lib/libcrypto/ecdsa/ecs_vrf.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/lib/libcrypto/ecdsa/ecs_vrf.c b/lib/libcrypto/ecdsa/ecs_vrf.c index a4b627ace65..270af94c0da 100644 --- a/lib/libcrypto/ecdsa/ecs_vrf.c +++ b/lib/libcrypto/ecdsa/ecs_vrf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ecs_vrf.c,v 1.5 2015/02/08 13:35:07 jsing Exp $ */ +/* $OpenBSD: ecs_vrf.c,v 1.6 2017/05/02 03:59:44 deraadt Exp $ */ /* * Written by Nils Larsch for the OpenSSL project */ @@ -107,10 +107,7 @@ ECDSA_verify(int type, const unsigned char *dgst, int dgst_len, ret = ECDSA_do_verify(dgst, dgst_len, s, eckey); err: - if (derlen > 0) { - explicit_bzero(der, derlen); - free(der); - } + freezero(der, derlen); ECDSA_SIG_free(s); return (ret); } |