diff options
Diffstat (limited to 'source4/heimdal/lib/hcrypto/hmac.c')
| -rw-r--r-- | source4/heimdal/lib/hcrypto/hmac.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/source4/heimdal/lib/hcrypto/hmac.c b/source4/heimdal/lib/hcrypto/hmac.c index 848b987a90..b8156e38d4 100644 --- a/source4/heimdal/lib/hcrypto/hmac.c +++ b/source4/heimdal/lib/hcrypto/hmac.c @@ -52,8 +52,10 @@ HMAC_Init_ex(HMAC_CTX *ctx, if (ctx->md != md) { ctx->md = md; - if (ctx->buf) + if (ctx->buf) { + memset(ctx->buf, 0, ctx->key_length); free (ctx->buf); + } ctx->key_length = EVP_MD_size(ctx->md); ctx->buf = malloc(ctx->key_length); } @@ -67,10 +69,14 @@ HMAC_Init_ex(HMAC_CTX *ctx, keylen = EVP_MD_size(ctx->md); } - if (ctx->opad) + if (ctx->opad) { + memset(ctx->opad, 0, ctx->key_length); free(ctx->opad); - if (ctx->ipad) + } + if (ctx->ipad) { + memset(ctx->ipad, 0, ctx->key_length); free(ctx->ipad); + } ctx->opad = malloc(EVP_MD_block_size(ctx->md)); ctx->ipad = malloc(EVP_MD_block_size(ctx->md)); |