diff options
| -rw-r--r-- | lib/hmac_prng.h | 18 | ||||
| -rw-r--r-- | lib/sha256.c | 2 |
2 files changed, 10 insertions, 10 deletions
diff --git a/lib/hmac_prng.h b/lib/hmac_prng.h index 7e33242..e138237 100644 --- a/lib/hmac_prng.h +++ b/lib/hmac_prng.h @@ -31,17 +31,17 @@ * hmac_prng.h -- Interface to an HMAC-PRNG implementation. * * Overview: A pseudo-random number generator (PRNG) generates a sequence - * of numbers that have a distribution close to the one expected - * for a sequence of truly random numbers. The NIST Special - * Publication 800-90A specifies several mechanisms to generate - * sequences of pseudo random numbers, including the HMAC-PRNG one - * which is based on HMAC. TinyCrypt implements HMAC-PRNG with - * certain modifications from the NIST SP 800-90A spec. + * of numbers that have a distribution close to the one expected + * for a sequence of truly random numbers. The NIST Special + * Publication 800-90A specifies several mechanisms to generate + * sequences of pseudo random numbers, including the HMAC-PRNG one + * which is based on HMAC. TinyCrypt implements HMAC-PRNG with + * certain modifications from the NIST SP 800-90A spec. * * Security: A cryptographically secure PRNG depends on the existence of an - * entropy source to provide a truly random seed as well as the - * security of the primitives used as the building blocks (HMAC and - * SHA256, for TinyCrypt). + * entropy source to provide a truly random seed as well as the + * security of the primitives used as the building blocks (HMAC and + * SHA256, for TinyCrypt). * * The NIST SP 800-90A standard tolerates a null personalization, * while TinyCrypt requires a non-null personalization. This is diff --git a/lib/sha256.c b/lib/sha256.c index bd9e25b..1a8454e 100644 --- a/lib/sha256.c +++ b/lib/sha256.c @@ -134,7 +134,7 @@ int32_t tc_sha256_final (uint8_t *digest, TCSha256State_t s) { } /* Initializing SHA-256 Hash constant words K. - These values correspond to the first 32 bits of the fractional parts of the + These values correspond to the first 32 bits of the fractional parts of the cube roots of the first 64 primes between 2 and 311. */ static const uint32_t k256[64] = { 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, |