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comparison hash_memory.c @ 3:7faae8f46238 libtomcrypt-orig

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Branch renaming
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:25:41 +0000
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children 5d99163f7e32
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-1:000000000000 3:7faae8f46238
1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
2 *
3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner.
5 *
6 * The library is free for all purposes without any express
7 * guarantee it works.
8 *
9 * Tom St Denis, [email protected], http://libtomcrypt.org
10 */
11 #include "mycrypt.h"
12
13 int hash_memory(int hash, const unsigned char *data, unsigned long len, unsigned char *dst, unsigned long *outlen)
14 {
15 hash_state md;
16 int err;
17
18 _ARGCHK(data != NULL);
19 _ARGCHK(dst != NULL);
20 _ARGCHK(outlen != NULL);
21
22 if ((err = hash_is_valid(hash)) != CRYPT_OK) {
23 return err;
24 }
25
26 if (*outlen < hash_descriptor[hash].hashsize) {
27 return CRYPT_BUFFER_OVERFLOW;
28 }
29 *outlen = hash_descriptor[hash].hashsize;
30
31 hash_descriptor[hash].init(&md);
32 hash_descriptor[hash].process(&md, data, len);
33 hash_descriptor[hash].done(&md, dst);
34 return CRYPT_OK;
35 }