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annotate sprng.c @ 18:712dd6dfb0eb libtomcrypt

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makefile
author Matt Johnston <matt@ucc.asn.au>
date Tue, 15 Jun 2004 14:34:07 +0000
parents d7da3b1e1540
children 5d99163f7e32
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 *
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9 * Tom St Denis, [email protected], http://libtomcrypt.org
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10 */
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11
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12 /* A secure PRNG using the RNG functions. Basically this is a
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13 * wrapper that allows you to use a secure RNG as a PRNG
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14 * in the various other functions.
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15 */
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16 #include "mycrypt.h"
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17
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18 #ifdef SPRNG
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19
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20 const struct _prng_descriptor sprng_desc =
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21 {
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22 "sprng",
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23 &sprng_start,
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24 &sprng_add_entropy,
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25 &sprng_ready,
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26 &sprng_read
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27 };
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28
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29 int sprng_start(prng_state *prng)
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30 {
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31 return CRYPT_OK;
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32 }
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33
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34 int sprng_add_entropy(const unsigned char *buf, unsigned long len, prng_state *prng)
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35 {
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36 return CRYPT_OK;
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37 }
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38
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39 int sprng_ready(prng_state *prng)
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40 {
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41 return CRYPT_OK;
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42 }
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43
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44 unsigned long sprng_read(unsigned char *buf, unsigned long len, prng_state *prng)
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45 {
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46 _ARGCHK(buf != NULL);
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47 return rng_get_bytes(buf, len, NULL);
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48 }
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49
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50 #endif
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51
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