diff options
Diffstat (limited to 'host/lib/signature_digest.c')
| -rw-r--r-- | host/lib/signature_digest.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/host/lib/signature_digest.c b/host/lib/signature_digest.c index 025a9ffe..7f309b18 100644 --- a/host/lib/signature_digest.c +++ b/host/lib/signature_digest.c @@ -40,14 +40,19 @@ uint8_t* SignatureDigest(const uint8_t* buf, uint64_t len, uint8_t* info_digest = NULL; uint8_t digest[VB2_SHA512_DIGEST_SIZE]; /* Longest digest */ + enum vb2_hash_algorithm hash_alg; if (algorithm >= VB2_ALG_COUNT) { - fprintf(stderr, "SignatureDigest(): " - "Called with invalid algorithm!\n"); - } else if (VB2_SUCCESS == - vb2_digest_buffer(buf, len, vb2_crypto_to_hash(algorithm), - digest, sizeof(digest))) { - info_digest = PrependDigestInfo(algorithm, digest); + fprintf(stderr, + "SignatureDigest(): Called with invalid algorithm!\n"); + return NULL; + } + + hash_alg = vb2_crypto_to_hash(algorithm); + + if (VB2_SUCCESS == vb2_digest_buffer(buf, len, hash_alg, + digest, sizeof(digest))) { + info_digest = PrependDigestInfo(hash_alg, digest); } return info_digest; } |