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annotate hash_memory.c @ 211:f01f0400314d libtomcrypt

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disapproval of revision 6a39eb8b36778460fca83b8149df2a8b6d3327fd
author Matt Johnston <matt@ucc.asn.au>
date Wed, 06 Jul 2005 13:23:45 +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 #include "mycrypt.h"
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12
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13 int hash_memory(int hash, const unsigned char *data, unsigned long len, unsigned char *dst, unsigned long *outlen)
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14 {
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15 hash_state md;
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16 int err;
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17
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18 _ARGCHK(data != NULL);
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19 _ARGCHK(dst != NULL);
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20 _ARGCHK(outlen != NULL);
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21
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22 if ((err = hash_is_valid(hash)) != CRYPT_OK) {
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23 return err;
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24 }
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25
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26 if (*outlen < hash_descriptor[hash].hashsize) {
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27 return CRYPT_BUFFER_OVERFLOW;
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28 }
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29 *outlen = hash_descriptor[hash].hashsize;
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30
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31 hash_descriptor[hash].init(&md);
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32 hash_descriptor[hash].process(&md, data, len);
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33 hash_descriptor[hash].done(&md, dst);
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34 return CRYPT_OK;
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35 }