Mercurial > dropbear
annotate libtomcrypt/src/encauth/gcm/gcm_reset.c @ 652:17962b2a6b8f
- Make sure we don't use channel-specific data after it has been freed
with a ChanType->closehandler()
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sun, 04 Dec 2011 05:27:29 +0800 (2011-12-03) |
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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, tomstdenis@gmail.com, http://libtomcrypt.com |
285
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10 */ |
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11 |
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12 /** |
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13 @file gcm_reset.c |
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14 GCM implementation, reset a used state so it can accept IV data, by Tom St Denis |
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15 */ |
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16 #include "tomcrypt.h" |
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17 |
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18 #ifdef GCM_MODE |
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19 |
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20 /** |
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21 Reset a GCM state to as if you just called gcm_init(). This saves the initialization time. |
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22 @param gcm The GCM state to reset |
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23 @return CRYPT_OK on success |
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24 */ |
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25 int gcm_reset(gcm_state *gcm) |
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26 { |
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27 LTC_ARGCHK(gcm != NULL); |
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28 |
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29 zeromem(gcm->buf, sizeof(gcm->buf)); |
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30 zeromem(gcm->X, sizeof(gcm->X)); |
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31 gcm->mode = GCM_MODE_IV; |
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32 gcm->ivmode = 0; |
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33 gcm->buflen = 0; |
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34 gcm->totlen = 0; |
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35 gcm->pttotlen = 0; |
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36 |
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37 return CRYPT_OK; |
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38 } |
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39 |
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40 #endif |
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41 |
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42 /* $Source: /cvs/libtom/libtomcrypt/src/encauth/gcm/gcm_reset.c,v $ */ |
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43 /* $Revision: 1.4 $ */ |
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44 /* $Date: 2006/03/31 14:15:35 $ */ |