diff options
| author | Emilia Kasper <emilia@openssl.org> | 2015-05-27 17:12:13 +0200 |
|---|---|---|
| committer | Emilia Kasper <emilia@openssl.org> | 2015-06-08 14:55:50 +0200 |
| commit | 1e4a355dcabe2f75df5bb8b41b394d37037169d2 (patch) | |
| tree | aac26a71e92cf32f361342fbe2c3fe4edde4395d /crypto | |
| parent | 65d3941f4aa199d0fcd615b074876f8ff2886d11 (diff) | |
Use CRYPTO_memcmp when comparing authenticators
Pointed out by Victor Vasiliev (vasilvv@mit.edu) via Adam Langley
(Google).
Reviewed-by: Rich Salz <rsalz@openssl.org>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/evp/e_aes.c | 5 | ||||
| -rw-r--r-- | crypto/evp/e_rc4_hmac_md5.c | 3 | ||||
| -rw-r--r-- | crypto/modes/gcm128.c | 2 | ||||
| -rw-r--r-- | crypto/pkcs12/p12_mutl.c | 3 |
4 files changed, 8 insertions, 5 deletions
diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c index 0b7838e455..895e8ee4a7 100644 --- a/crypto/evp/e_aes.c +++ b/crypto/evp/e_aes.c @@ -50,6 +50,7 @@ #include <openssl/opensslconf.h> #ifndef OPENSSL_NO_AES +#include <openssl/crypto.h> # include <openssl/evp.h> # include <openssl/err.h> # include <string.h> @@ -1555,7 +1556,7 @@ static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, /* Retrieve tag */ CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN); /* If tag mismatch wipe buffer */ - if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) { + if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) { OPENSSL_cleanse(out, len); goto err; } @@ -1990,7 +1991,7 @@ static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, !CRYPTO_ccm128_decrypt(ccm, in, out, len)) { unsigned char tag[16]; if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) { - if (!memcmp(tag, ctx->buf, cctx->M)) + if (!CRYPTO_memcmp(tag, ctx->buf, cctx->M)) rv = len; } } diff --git a/crypto/evp/e_rc4_hmac_md5.c b/crypto/evp/e_rc4_hmac_md5.c index 1ba690da11..e3fe91835c 100644 --- a/crypto/evp/e_rc4_hmac_md5.c +++ b/crypto/evp/e_rc4_hmac_md5.c @@ -54,6 +54,7 @@ #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_MD5) +# include <openssl/crypto.h> # include <openssl/evp.h> # include <openssl/objects.h> # include <openssl/rc4.h> @@ -209,7 +210,7 @@ static int rc4_hmac_md5_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, MD5_Update(&key->md, mac, MD5_DIGEST_LENGTH); MD5_Final(mac, &key->md); - if (memcmp(out + plen, mac, MD5_DIGEST_LENGTH)) + if (CRYPTO_memcmp(out + plen, mac, MD5_DIGEST_LENGTH)) return 0; } else { MD5_Update(&key->md, out + md5_off, len - md5_off); diff --git a/crypto/modes/gcm128.c b/crypto/modes/gcm128.c index b39cd0671e..02e8f2e748 100644 --- a/crypto/modes/gcm128.c +++ b/crypto/modes/gcm128.c @@ -1685,7 +1685,7 @@ int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx, const unsigned char *tag, ctx->Xi.u[1] ^= ctx->EK0.u[1]; if (tag && len <= sizeof(ctx->Xi)) - return memcmp(ctx->Xi.c, tag, len); + return CRYPTO_memcmp(ctx->Xi.c, tag, len); else return -1; } diff --git a/crypto/pkcs12/p12_mutl.c b/crypto/pkcs12/p12_mutl.c index 4025e3fc41..9382b39d12 100644 --- a/crypto/pkcs12/p12_mutl.c +++ b/crypto/pkcs12/p12_mutl.c @@ -59,6 +59,7 @@ # include <stdio.h> # include "internal/cryptlib.h" +#include <openssl/crypto.h> # include <openssl/hmac.h> # include <openssl/rand.h> # include <openssl/pkcs12.h> @@ -123,7 +124,7 @@ int PKCS12_verify_mac(PKCS12 *p12, const char *pass, int passlen) return 0; } if ((maclen != (unsigned int)p12->mac->dinfo->digest->length) - || memcmp(mac, p12->mac->dinfo->digest->data, maclen)) + || CRYPTO_memcmp(mac, p12->mac->dinfo->digest->data, maclen)) return 0; return 1; } |