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authorDr. Stephen Henson <steve@openssl.org>2010-11-24 13:17:48 +0000
committerDr. Stephen Henson <steve@openssl.org>2010-11-24 13:17:48 +0000
commit95eef4df79280d966e224092f99b57bae4b65dee (patch)
tree1ce1590d5fd648dbe95ca250c9338720405bc459
parentec1e714ac146059c698417dbb5e74073bd47abaa (diff)
downloadopenssl-95eef4df79280d966e224092f99b57bae4b65dee.tar.gz
use generalised mac API for SSL key generation
-rw-r--r--ssl/t1_enc.c62
1 files changed, 34 insertions, 28 deletions
diff --git a/ssl/t1_enc.c b/ssl/t1_enc.c
index 34b300161d..2b3fd30e42 100644
--- a/ssl/t1_enc.c
+++ b/ssl/t1_enc.c
@@ -159,68 +159,73 @@ static int tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
unsigned char *out, int olen)
{
int chunk;
- unsigned int j;
- HMAC_CTX ctx;
- HMAC_CTX ctx_tmp;
+ size_t j;
+ EVP_MD_CTX ctx, ctx_tmp;
+ EVP_PKEY *mac_key;
unsigned char A1[EVP_MAX_MD_SIZE];
- unsigned int A1_len;
+ size_t A1_len;
int ret = 0;
chunk=EVP_MD_size(md);
OPENSSL_assert(chunk >= 0);
- HMAC_CTX_init(&ctx);
- HMAC_CTX_init(&ctx_tmp);
- if (!HMAC_Init_ex(&ctx,sec,sec_len,md, NULL))
+ EVP_MD_CTX_init(&ctx);
+ EVP_MD_CTX_init(&ctx_tmp);
+ mac_key = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL, sec, sec_len);
+ if (!mac_key)
+ goto err;
+ if (!EVP_DigestSignInit(&ctx,NULL,md, NULL, mac_key))
goto err;
- if (!HMAC_Init_ex(&ctx_tmp,sec,sec_len,md, NULL))
+ if (!EVP_DigestSignInit(&ctx_tmp,NULL,md, NULL, mac_key))
goto err;
- if (seed1 != NULL && !HMAC_Update(&ctx,seed1,seed1_len))
+ if (seed1 && !EVP_DigestSignUpdate(&ctx,seed1,seed1_len))
goto err;
- if (seed2 != NULL && !HMAC_Update(&ctx,seed2,seed2_len))
+ if (seed2 && !EVP_DigestSignUpdate(&ctx,seed2,seed2_len))
goto err;
- if (seed3 != NULL && !HMAC_Update(&ctx,seed3,seed3_len))
+ if (seed3 && !EVP_DigestSignUpdate(&ctx,seed3,seed3_len))
goto err;
- if (seed4 != NULL && !HMAC_Update(&ctx,seed4,seed4_len))
+ if (seed4 && !EVP_DigestSignUpdate(&ctx,seed4,seed4_len))
goto err;
- if (seed5 != NULL && !HMAC_Update(&ctx,seed5,seed5_len))
+ if (seed5 && !EVP_DigestSignUpdate(&ctx,seed5,seed5_len))
goto err;
- if (!HMAC_Final(&ctx,A1,&A1_len))
+ if (!EVP_DigestSignFinal(&ctx,A1,&A1_len))
goto err;
for (;;)
{
- if (!HMAC_Init_ex(&ctx,NULL,0,NULL,NULL)) /* re-init */
+ /* Reinit mac contexts */
+ if (!EVP_DigestSignInit(&ctx,NULL,md, NULL, mac_key))
goto err;
- if (!HMAC_Init_ex(&ctx_tmp,NULL,0,NULL,NULL)) /* re-init */
+ if (!EVP_DigestSignInit(&ctx_tmp,NULL,md, NULL, mac_key))
goto err;
- if (!HMAC_Update(&ctx,A1,A1_len))
+ if (!EVP_DigestSignUpdate(&ctx,A1,A1_len))
goto err;
- if (!HMAC_Update(&ctx_tmp,A1,A1_len))
+ if (!EVP_DigestSignUpdate(&ctx_tmp,A1,A1_len))
goto err;
- if (seed1 != NULL && !HMAC_Update(&ctx,seed1,seed1_len))
+ if (seed1 && !EVP_DigestSignUpdate(&ctx,seed1,seed1_len))
goto err;
- if (seed2 != NULL && !HMAC_Update(&ctx,seed2,seed2_len))
+ if (seed2 && !EVP_DigestSignUpdate(&ctx,seed2,seed2_len))
goto err;
- if (seed3 != NULL && !HMAC_Update(&ctx,seed3,seed3_len))
+ if (seed3 && !EVP_DigestSignUpdate(&ctx,seed3,seed3_len))
goto err;
- if (seed4 != NULL && !HMAC_Update(&ctx,seed4,seed4_len))
+ if (seed4 && !EVP_DigestSignUpdate(&ctx,seed4,seed4_len))
goto err;
- if (seed5 != NULL && !HMAC_Update(&ctx,seed5,seed5_len))
+ if (seed5 && !EVP_DigestSignUpdate(&ctx,seed5,seed5_len))
goto err;
if (olen > chunk)
{
- if (!HMAC_Final(&ctx,out,&j))
+ if (!EVP_DigestSignFinal(&ctx,out,&j))
goto err;
out+=j;
olen-=j;
- if (!HMAC_Final(&ctx_tmp,A1,&A1_len)) /* calc the next A1 value */
+ /* calc the next A1 value */
+ if (!EVP_DigestSignFinal(&ctx_tmp,A1,&A1_len))
goto err;
}
else /* last one */
{
- if (!HMAC_Final(&ctx,A1,&A1_len))
+ if (!EVP_DigestSignFinal(&ctx,A1,&A1_len))
goto err;
memcpy(out,A1,olen);
break;
@@ -228,8 +233,9 @@ static int tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
}
ret = 1;
err:
- HMAC_CTX_cleanup(&ctx);
- HMAC_CTX_cleanup(&ctx_tmp);
+ EVP_PKEY_free(mac_key);
+ EVP_MD_CTX_cleanup(&ctx);
+ EVP_MD_CTX_cleanup(&ctx_tmp);
OPENSSL_cleanse(A1,sizeof(A1));
return ret;
}