diff options
Diffstat (limited to 'board/cr50/tpm2/ecc.c')
| -rw-r--r-- | board/cr50/tpm2/ecc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/board/cr50/tpm2/ecc.c b/board/cr50/tpm2/ecc.c index f9cc5a966a..84c5407337 100644 --- a/board/cr50/tpm2/ecc.c +++ b/board/cr50/tpm2/ecc.c @@ -143,7 +143,7 @@ CRYPT_RESULT _cpri__GenerateKeyEcc( * the derivation tree is distinct from RSA key derivation. */ if (DCRYPTO_hw_hmac_sha256_init(&hmac, seed->buffer, seed->size) != DCRYPTO_OK) - return CRYPT_FAIL; + return CRYPT_NO_RESULT; HMAC_SHA256_update(&hmac, "ECC", 4); memcpy(local_seed.t.buffer, HMAC_SHA256_final(&hmac), @@ -194,10 +194,12 @@ CRYPT_RESULT _cpri__GenerateKeyEcc( always_memset(local_seed.t.buffer, 0, local_seed.t.size); always_memset(key_bytes, 0, sizeof(key_bytes)); - if (count == 0) - FAIL(FATAL_ERROR_INTERNAL); if (counter != NULL) *counter = count; + if (count == 0) { + FAIL(FATAL_ERROR_CRYPTO); + return CRYPT_HW_FAILURE; /* Produce TPM_RC_FAILURE */ + } return CRYPT_SUCCESS; } |