Mercurial > dropbear

annotate libtomcrypt/src/modes/cbc/cbc_setiv.c @ 1820:e9854650d45b

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Clarify help text for dropbear -e environment option
author Matt Johnston <matt@ucc.asn.au>
date Thu, 19 Aug 2021 23:17:34 +0800
parents 6dba84798cd5
children
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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 #include "tomcrypt.h"
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11 /**
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12 @file cbc_setiv.c
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13 CBC implementation, set IV, Tom St Denis
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14 */
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17 #ifdef LTC_CBC_MODE
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19 /**
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20 Set an initialization vector
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21 @param IV The initialization vector
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22 @param len The length of the vector (in octets)
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23 @param cbc The CBC state
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24 @return CRYPT_OK if successful
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25 */
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26 int cbc_setiv(const unsigned char *IV, unsigned long len, symmetric_CBC *cbc)
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27 {
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28 LTC_ARGCHK(IV != NULL);
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29 LTC_ARGCHK(cbc != NULL);
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30 if (len != (unsigned long)cbc->blocklen) {
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31 return CRYPT_INVALID_ARG;
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32 }
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33 XMEMCPY(cbc->IV, IV, len);
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34 return CRYPT_OK;
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35 }
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36
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37 #endif
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39
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40 /* ref: $Format:%D$ */
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41 /* git commit: $Format:%H$ */
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42 /* commit time: $Format:%ai$ */