diff options
Diffstat (limited to 'host/lib/host_signature.c')
-rw-r--r-- | host/lib/host_signature.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/host/lib/host_signature.c b/host/lib/host_signature.c index 57676842..33000f1f 100644 --- a/host/lib/host_signature.c +++ b/host/lib/host_signature.c @@ -54,54 +54,6 @@ int SignatureCopy(VbSignature* dest, const VbSignature* src) { return 0; } - -VbSignature* CalculateChecksum(const uint8_t* data, uint64_t size) { - - uint8_t header_checksum[VB2_SHA512_DIGEST_SIZE]; - VbSignature* sig; - - if (VB2_SUCCESS != vb2_digest_buffer(data, size, VB2_HASH_SHA512, - header_checksum, - sizeof(header_checksum))) - return NULL; - - sig = SignatureAlloc(VB2_SHA512_DIGEST_SIZE, 0); - if (!sig) - return NULL; - - sig->sig_offset = sizeof(VbSignature); - sig->sig_size = VB2_SHA512_DIGEST_SIZE; - sig->data_size = size; - - /* Signature data immediately follows the header */ - Memcpy(GetSignatureData(sig), header_checksum, VB2_SHA512_DIGEST_SIZE); - return sig; -} - -VbSignature* CalculateHash(const uint8_t* data, uint64_t size, - const VbPrivateKey* key) { - int vb2_alg = vb2_crypto_to_hash(key->algorithm); - uint8_t digest[VB2_MAX_DIGEST_SIZE]; - int digest_size = vb2_digest_size(vb2_alg); - VbSignature* sig = NULL; - - /* Calculate the digest */ - if (VB2_SUCCESS != vb2_digest_buffer(data, size, vb2_alg, - digest, sizeof(digest))) - return NULL; - - /* Allocate output signature */ - sig = SignatureAlloc(digest_size, size); - if (!sig) - return NULL; - - /* The digest itself is the signature data */ - Memcpy(GetSignatureData(sig), digest, digest_size); - - /* Return the signature */ - return sig; -} - VbSignature* CalculateSignature(const uint8_t* data, uint64_t size, const VbPrivateKey* key) { int vb2_alg = vb2_crypto_to_hash(key->algorithm); |