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Add hmac_drbg_set_entropy_len()
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@ -96,7 +96,7 @@ int hmac_drbg_init( hmac_drbg_context *ctx,
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size_t len );
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/**
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* \brief Simplified HMAC_DRBG initialisation.
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* \brief Initilisation of simpified HMAC_DRBG (never reseeds).
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* (For use with deterministic ECDSA.)
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*
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* \param ctx HMAC_DRBG context to be initialised
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@ -112,6 +112,16 @@ int hmac_drbg_init_buf( hmac_drbg_context *ctx,
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const md_info_t * md_info,
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const unsigned char *data, size_t data_len );
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/**
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* \brief Set the amount of entropy grabbed on each reseed
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* (Default: HMAC_DRBG_ENTROPY_LEN)
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*
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* \param ctx HMAC_DRBG context
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* \param len Amount of entropy to grab
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*/
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void hmac_drbg_set_entropy_len( hmac_drbg_context *ctx,
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size_t len );
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/**
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* \brief HMAC_DRBG update state
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*
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@ -156,6 +156,14 @@ int hmac_drbg_init( hmac_drbg_context *ctx,
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return( 0 );
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}
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/*
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* Set entropy length grabbed for reseeds
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*/
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void hmac_drbg_set_entropy_len( hmac_drbg_context *ctx, size_t len )
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{
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ctx->entropy_len = len;
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}
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/*
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* HMAC_DRBG random function with optional additional data (10.1.2.5)
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*/
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