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annotate omac_memory.c @ 0:d7da3b1e1540 libtomcrypt

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put back the 0.95 makefile which was inadvertently merged over
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:21:40 +0000
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children 5d99163f7e32
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d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over
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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 /* OMAC1 Support by Tom St Denis (for 64 and 128 bit block ciphers only) */
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12 #include "mycrypt.h"
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13
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14 #ifdef OMAC
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15
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16 int omac_memory(int cipher,
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17 const unsigned char *key, unsigned long keylen,
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18 const unsigned char *msg, unsigned long msglen,
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19 unsigned char *out, unsigned long *outlen)
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20 {
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21 int err;
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22 omac_state omac;
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23
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24 _ARGCHK(key != NULL);
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25 _ARGCHK(msg != NULL);
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26 _ARGCHK(out != NULL);
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27 _ARGCHK(outlen != NULL);
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28
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29 if ((err = omac_init(&omac, cipher, key, keylen)) != CRYPT_OK) {
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30 return err;
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31 }
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32 if ((err = omac_process(&omac, msg, msglen)) != CRYPT_OK) {
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33 return err;
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34 }
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35 if ((err = omac_done(&omac, out, outlen)) != CRYPT_OK) {
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36 return err;
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37 }
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38
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39 return CRYPT_OK;
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40 }
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41
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42 #endif