diff options
| -rw-r--r-- | crypto/evp/digest.c | 3 | ||||
| -rw-r--r-- | crypto/evp/mac_lib.c | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/crypto/evp/digest.c b/crypto/evp/digest.c index d4b481443c..7b4972553b 100644 --- a/crypto/evp/digest.c +++ b/crypto/evp/digest.c @@ -259,6 +259,9 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl) int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *data, size_t count) { + if (count == 0) + return 1; + if (ctx->digest == NULL || ctx->digest->prov == NULL) goto legacy; diff --git a/crypto/evp/mac_lib.c b/crypto/evp/mac_lib.c index 2f46277bf0..39efff0842 100644 --- a/crypto/evp/mac_lib.c +++ b/crypto/evp/mac_lib.c @@ -82,6 +82,8 @@ int EVP_MAC_init(EVP_MAC_CTX *ctx) int EVP_MAC_update(EVP_MAC_CTX *ctx, const unsigned char *data, size_t datalen) { + if (datalen == 0) + return 1; return ctx->meth->update(ctx->data, data, datalen); } |