Mercurial > dropbear

annotate libtomcrypt/src/encauth/ocb/ocb_done_encrypt.c @ 687:167fdc091c05

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Improve RNG seeding. Try to read from /dev/urandom multiple times, take input from extra sources, and use /dev/random when generating private keys
author Matt Johnston <matt@ucc.asn.au>
date Fri, 29 Jun 2012 23:19:43 +0800
parents 0cbe8f6dbf9e
children f849a5ca2efc
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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.com
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10 */
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12 /**
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13 @file ocb_done_encrypt.c
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14 OCB implementation, terminate encryption, by Tom St Denis
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15 */
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16 #include "tomcrypt.h"
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18 #ifdef OCB_MODE
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20 /**
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21 Terminate an encryption OCB state
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22 @param ocb The OCB state
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23 @param pt Remaining plaintext (if any)
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24 @param ptlen The length of the plaintext (octets)
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25 @param ct [out] The ciphertext (if any)
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26 @param tag [out] The tag for the OCB stream
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27 @param taglen [in/out] The max size and resulting size of the tag
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28 @return CRYPT_OK if successful
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29 */
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30 int ocb_done_encrypt(ocb_state *ocb, const unsigned char *pt, unsigned long ptlen,
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31 unsigned char *ct, unsigned char *tag, unsigned long *taglen)
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32 {
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33 LTC_ARGCHK(ocb != NULL);
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34 LTC_ARGCHK(pt != NULL);
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35 LTC_ARGCHK(ct != NULL);
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36 LTC_ARGCHK(tag != NULL);
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37 LTC_ARGCHK(taglen != NULL);
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38 return s_ocb_done(ocb, pt, ptlen, ct, tag, taglen, 0);
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39 }
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41 #endif
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44 /* $Source: /cvs/libtom/libtomcrypt/src/encauth/ocb/ocb_done_encrypt.c,v $ */
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45 /* $Revision: 1.4 $ */
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46 /* $Date: 2006/03/31 14:15:35 $ */