diff options
| -rw-r--r-- | util/broadcom/secimage/crypto.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/util/broadcom/secimage/crypto.c b/util/broadcom/secimage/crypto.c index b7041c994b..2fe52b68cf 100644 --- a/util/broadcom/secimage/crypto.c +++ b/util/broadcom/secimage/crypto.c @@ -25,19 +25,16 @@ *---------------------------------------------------------------------*/ int HmacSha256Hash(uint8_t *data, uint32_t len, uint8_t *hash, uint8_t *key) { - HMAC_CTX hctx; + unsigned int hash_len = 0; - HMAC_CTX_init(&hctx); - HMAC_Init_ex(&hctx, key, 32, EVP_sha256(), NULL); - - /* FIXME: why we need this? NULL means to use whatever there is? - * if removed, result is different - */ - HMAC_Init_ex(&hctx, NULL, 0, NULL, NULL); - HMAC_Update(&hctx, data, len); - HMAC_Final(&hctx, hash, NULL); + if (!HMAC(EVP_sha256(), key, 32, data, len, hash, &hash_len)) { + printf("HMAC failed\n"); + return -1; + } else if (hash_len != 32) { + printf("HMAC reported unexpected md_len of %u\n", hash_len); + return -2; + } - HMAC_CTX_cleanup(&hctx); return 0; } |