diff options
Diffstat (limited to 'board/cr50/dcrypto/fips_rand.c')
| -rw-r--r-- | board/cr50/dcrypto/fips_rand.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/board/cr50/dcrypto/fips_rand.c b/board/cr50/dcrypto/fips_rand.c index dff7c1a61b..701fca0a6f 100644 --- a/board/cr50/dcrypto/fips_rand.c +++ b/board/cr50/dcrypto/fips_rand.c @@ -185,6 +185,11 @@ static uint64_t fips_trng32(int power_up) return r; } +uint64_t fips_trng_rand32(void) +{ + return fips_trng32(0); +} + bool fips_trng_bytes(void *buffer, size_t len) { uint8_t *buf = (uint8_t *)buffer; @@ -331,8 +336,12 @@ bool fips_rand_bytes(void *buffer, size_t len) enum hmac_result fips_p256_hmac_drbg_generate(struct drbg_ctx *drbg, p256_int *out) { - enum hmac_result err = p256_hmac_drbg_generate(drbg, out); + enum hmac_result err; + + if (!fips_crypto_allowed()) + return HMAC_DRBG_INVALID_PARAM; + err = p256_hmac_drbg_generate(drbg, out); while (err == HMAC_DRBG_RESEED_REQUIRED) { if (!fips_drbg_reseed_with_entropy(drbg)) return HMAC_DRBG_RESEED_REQUIRED; |