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--HG-- branch : libtomcrypt extra : convert_revision : a8432150cae4fe7441284bef582b002687ede6e0
54 lines
1.0 KiB
C
54 lines
1.0 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
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*/
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/* A secure PRNG using the RNG functions. Basically this is a
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* wrapper that allows you to use a secure RNG as a PRNG
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* in the various other functions.
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*/
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#include "mycrypt.h"
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#ifdef SPRNG
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const struct _prng_descriptor sprng_desc =
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{
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"sprng",
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&sprng_start,
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&sprng_add_entropy,
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&sprng_ready,
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&sprng_read
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};
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int sprng_start(prng_state *prng)
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{
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return CRYPT_OK;
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}
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int sprng_add_entropy(const unsigned char *buf, unsigned long len, prng_state *prng)
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{
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return CRYPT_OK;
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}
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int sprng_ready(prng_state *prng)
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{
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return CRYPT_OK;
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}
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unsigned long sprng_read(unsigned char *buf, unsigned long len, prng_state *prng)
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{
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_ARGCHK(buf != NULL);
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return rng_get_bytes(buf, len, NULL);
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}
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#endif
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