diff options
Diffstat (limited to 'lib/hmac_prng.h')
| -rw-r--r-- | lib/hmac_prng.h | 50 |
1 files changed, 25 insertions, 25 deletions
diff --git a/lib/hmac_prng.h b/lib/hmac_prng.h index 297270e..8414454 100644 --- a/lib/hmac_prng.h +++ b/lib/hmac_prng.h @@ -52,29 +52,29 @@ * Requires: - SHA-256 * - HMAC * - * Usage: 1) call hmac_prng_init to set the HMAC key and process the + * Usage: 1) call tc_hmac_prng_init to set the HMAC key and process the * personalization data. * - * 2) call hmac_prng_reseed to process the seed and additional + * 2) call tc_hmac_prng_reseed to process the seed and additional * input. * - * 3) call hmac_prng_generate to out put the pseudo-random data. + * 3) call tc_hmac_prng_generate to out put the pseudo-random data. */ -#ifndef __HMAC_PRNG_H__ -#define __HMAC_PRNG_H__ +#ifndef __TC_HMAC_PRNG_H__ +#define __TC_HMAC_PRNG_H__ #include "sha256.h" #include "hmac.h" -struct hmac_prng_struct { - struct hmac_state_struct h; /* the HMAC instance for this PRNG */ - uint8_t key[SHA256_DIGEST_SIZE]; /* the PRNG key */ - uint8_t v[SHA256_DIGEST_SIZE]; /* PRNG state */ - uint32_t countdown; /* calls to hmac_prng_generate left before re-seed */ +struct tc_hmac_prng_struct { + struct tc_hmac_state_struct h; /* the HMAC instance for this PRNG */ + uint8_t key[TC_SHA256_DIGEST_SIZE]; /* the PRNG key */ + uint8_t v[TC_SHA256_DIGEST_SIZE]; /* PRNG state */ + uint32_t countdown; /* calls to tc_hmac_prng_generate left before re-seed */ }; -typedef struct hmac_prng_struct *HmacPrng_t; +typedef struct tc_hmac_prng_struct *TCHmacPrng_t; /* * HMAC-PRNG initialization procedure. @@ -100,10 +100,10 @@ typedef struct hmac_prng_struct *HmacPrng_t; * init). * */ -int32_t hmac_prng_init ( - HmacPrng_t prng, /* IN/OUT -- the PRNG state to initialize */ - const uint8_t *personalization, /* IN -- personalization string */ - uint32_t plen); /* IN -- personalization length in bytes */ +int32_t tc_hmac_prng_init ( + TCHmacPrng_t prng, + const uint8_t *personalization, + uint32_t plen); /* * HMAC-PRNG reseed procedure. @@ -121,12 +121,12 @@ int32_t hmac_prng_init ( * additional_input != (const uint8_t *) 0 && additionallen == 0, * additional_input != (const uint8_t *) 0 && additionallen > MAX_ALEN. */ -int32_t hmac_prng_reseed ( - HmacPrng_t prng, /* IN/OUT -- the PRNG state */ - const uint8_t *seed, /* IN -- entropy to mix into the prng */ - uint32_t seedlen, /* IN -- length of seed in bytes */ - const uint8_t *additional_input,/* IN -- additional input to the prng */ - uint32_t additionallen); /* IN -- additional input length in bytes */ +int32_t tc_hmac_prng_reseed ( + TCHmacPrng_t prng, + const uint8_t *seed, + uint32_t seedlen, + const uint8_t *additional_input, + uint32_t additionallen); /* * HMAC-PRNG generate procedure. @@ -145,9 +145,9 @@ int32_t hmac_prng_reseed ( * outlen == 0, * outlen >= MAX_OUT. */ -int32_t hmac_prng_generate ( - uint8_t *out, /* IN/OUT -- buffer to receive output */ - uint32_t outlen, /* IN -- size of out buffer in bytes */ - HmacPrng_t prng); /* IN/OUT -- the PRNG state */ +int32_t tc_hmac_prng_generate ( + uint8_t *out, + uint32_t outlen, + TCHmacPrng_t prng); #endif |