Mercurial > dropbear
view sprng.c @ 144:7ed585a2c53b libtomcrypt
propagate of 3f8f752126017cbe7d93c4086c27a91550df745f and 747ebf284d40a15b338e5a5c7730ecec6eade3d7 from branch 'au.asn.ucc.matt.ltc-orig' to 'au.asn.ucc.matt.ltc-db'
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sun, 19 Dec 2004 11:47:33 +0000 |
parents | 5d99163f7e32 |
children |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, [email protected], http://libtomcrypt.org */ /* A secure PRNG using the RNG functions. Basically this is a * wrapper that allows you to use a secure RNG as a PRNG * in the various other functions. */ #include "mycrypt.h" #ifdef SPRNG const struct _prng_descriptor sprng_desc = { "sprng", 0, &sprng_start, &sprng_add_entropy, &sprng_ready, &sprng_read, &sprng_done, &sprng_export, &sprng_import, &sprng_test }; int sprng_start(prng_state *prng) { return CRYPT_OK; } int sprng_add_entropy(const unsigned char *buf, unsigned long len, prng_state *prng) { return CRYPT_OK; } int sprng_ready(prng_state *prng) { return CRYPT_OK; } unsigned long sprng_read(unsigned char *buf, unsigned long len, prng_state *prng) { _ARGCHK(buf != NULL); return rng_get_bytes(buf, len, NULL); } int sprng_done(prng_state *prng) { return CRYPT_OK; } int sprng_export(unsigned char *out, unsigned long *outlen, prng_state *prng) { _ARGCHK(outlen != NULL); *outlen = 0; return CRYPT_OK; } int sprng_import(const unsigned char *in, unsigned long inlen, prng_state *prng) { return CRYPT_OK; } int sprng_test(void) { return CRYPT_OK; } #endif