Mercurial > dropbear
annotate libtomcrypt/src/modes/f8/f8_setiv.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) |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
rev | line source |
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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 |
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10 */ |
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11 #include "tomcrypt.h" |
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12 |
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13 /** |
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14 @file f8_setiv.c |
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15 F8 implementation, set IV, Tom St Denis |
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16 */ |
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17 |
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18 #ifdef LTC_F8_MODE |
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19 |
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20 /** |
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21 Set an initial vector |
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22 @param IV The initial vector |
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23 @param len The length of the vector (in octets) |
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24 @param f8 The F8 state |
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25 @return CRYPT_OK if successful |
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26 */ |
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27 int f8_setiv(const unsigned char *IV, unsigned long len, symmetric_F8 *f8) |
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28 { |
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29 int err; |
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30 |
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31 LTC_ARGCHK(IV != NULL); |
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32 LTC_ARGCHK(f8 != NULL); |
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33 |
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34 if ((err = cipher_is_valid(f8->cipher)) != CRYPT_OK) { |
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35 return err; |
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36 } |
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37 |
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38 if (len != (unsigned long)f8->blocklen) { |
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39 return CRYPT_INVALID_ARG; |
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40 } |
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41 |
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42 /* force next block */ |
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43 f8->padlen = 0; |
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44 return cipher_descriptor[f8->cipher].ecb_encrypt(IV, f8->IV, &f8->key); |
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45 } |
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46 |
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47 #endif |
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48 |
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49 |
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50 /* $Source: /cvs/libtom/libtomcrypt/src/modes/f8/f8_setiv.c,v $ */ |
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51 /* $Revision: 1.2 $ */ |
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52 /* $Date: 2006/06/16 22:49:25 $ */ |