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Add hmac_drbg_reseed()

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This commit is contained in:
Manuel Pégourié-Gonnard 2014-01-30 18:28:09 +01:00
parent 4e669c614d
commit 8fc484d1df
2 changed files with 69 additions and 42 deletions
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13
include/polarssl/hmac_drbg.h
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@ -135,6 +135,19 @@ void hmac_drbg_set_entropy_len( hmac_drbg_context *ctx,
void hmac_drbg_update( hmac_drbg_context *ctx,
const unsigned char *additional, size_t add_len );
/**
* \brief HMAC_DRBG reseeding (extracts data from entropy source)
*
* \param ctx HMAC_DRBG context
* \param additional Additional data to add to state (Can be NULL)
* \param len Length of additional data
*
* \return 0 if successful, or
* POLARSSL_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED
*/
int hmac_drbg_reseed( hmac_drbg_context *ctx,
const unsigned char *additional, size_t len );
/**
* \brief HMAC_DRBG generate random with additional update input
*