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Add hmac_random_with_add()

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Manuel Pégourié-Gonnard
2014-01-30 12:19:26 +01:00
parent 7845fc06c9
commit 8208d167da
2 changed files with 54 additions and 8 deletions
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26
include/polarssl/hmac_drbg.h
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@@ -75,16 +75,38 @@ int hmac_drbg_init( hmac_drbg_context *ctx,
void hmac_drbg_update( hmac_drbg_context *ctx,
const unsigned char *additional, size_t add_len );
/**
* \brief HMAC_DRBG generate random with additional update input
*
* Note: Automatically reseeds if reseed_counter is reached.
*
* \param p_rng HMAC_DRBG context
* \param output Buffer to fill
* \param output_len Length of the buffer
* \param additional Additional data to update with (can be NULL)
* \param add_len Length of additional data (can be 0)
*
* \return 0 if successful, or
* TODO: POLARSSL_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED, or
* TODO: POLARSSL_ERR_HMAC_DRBG_REQUEST_TOO_BIG
*/
int hmac_drbg_random_with_add( void *p_rng,
unsigned char *output, size_t output_len,
const unsigned char *additional,
size_t add_len );
/**
* \brief HMAC_DRBG generate random
*
* Note: Automatically reseeds if reseed_counter is reached. (TODO)
* Note: Automatically reseeds if reseed_counter is reached.
*
* \param p_rng HMAC_DRBG context
* \param output Buffer to fill
* \param output_len Length of the buffer
*
* \return 0 if successful.
* \return 0 if successful, or
* TODO: POLARSSL_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED, or
* TODO: POLARSSL_ERR_HMAC_DRBG_REQUEST_TOO_BIG
*/
int hmac_drbg_random( void *p_rng, unsigned char *output, size_t out_len );