diff options
Diffstat (limited to 'chip/g/dcrypto/internal.h')
| -rw-r--r-- | chip/g/dcrypto/internal.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/chip/g/dcrypto/internal.h b/chip/g/dcrypto/internal.h index 69c54da4d4..26bac1c73f 100644 --- a/chip/g/dcrypto/internal.h +++ b/chip/g/dcrypto/internal.h @@ -130,6 +130,11 @@ struct drbg_ctx { /* * NIST SP 800-90A HMAC DRBG. */ +enum hmac_result { + HMAC_DRBG_SUCCESS = 0, + HMAC_DRBG_INVALID_PARAM = 1, + HMAC_DRBG_RESEED_REQUIRED = 2 +}; /* Standard initialization. */ void hmac_drbg_init(struct drbg_ctx *ctx, @@ -146,11 +151,11 @@ void hmac_drbg_reseed(struct drbg_ctx *ctx, const void *p0, size_t p0_len, const void *p1, size_t p1_len, const void *p2, size_t p2_len); -int hmac_drbg_generate(struct drbg_ctx *ctx, - void *out, size_t out_len, - const void *input, size_t input_len); +enum hmac_result hmac_drbg_generate(struct drbg_ctx *ctx, void *out, + size_t out_len, const void *input, + size_t input_len); /* Generate p256, with no additional input. */ -void hmac_drbg_generate_p256(struct drbg_ctx *ctx, p256_int *k_out); +enum hmac_result hmac_drbg_generate_p256(struct drbg_ctx *ctx, p256_int *k_out); void drbg_exit(struct drbg_ctx *ctx); /* |