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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 #include "tomcrypt.h" |
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12 |
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13 /** |
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14 @file der_length_utctime.c |
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15 ASN.1 DER, get length of UTCTIME, Tom St Denis |
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16 */ |
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17 |
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18 #ifdef LTC_DER |
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19 |
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20 /** |
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21 Gets length of DER encoding of UTCTIME |
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22 @param outlen [out] The length of the DER encoding |
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23 @return CRYPT_OK if successful |
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24 */ |
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25 int der_length_utctime(ltc_utctime *utctime, unsigned long *outlen) |
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26 { |
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27 LTC_ARGCHK(outlen != NULL); |
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28 LTC_ARGCHK(utctime != NULL); |
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29 |
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30 if (utctime->off_hh == 0 && utctime->off_mm == 0) { |
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31 /* we encode as YYMMDDhhmmssZ */ |
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32 *outlen = 2 + 13; |
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33 } else { |
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34 /* we encode as YYMMDDhhmmss{+|-}hh'mm' */ |
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35 *outlen = 2 + 17; |
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36 } |
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37 |
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38 return CRYPT_OK; |
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39 } |
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40 |
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41 #endif |
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42 |
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43 /* $Source: /cvs/libtom/libtomcrypt/src/pk/asn1/der/utctime/der_length_utctime.c,v $ */ |
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44 /* $Revision: 1.2 $ */ |
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45 /* $Date: 2005/06/19 11:23:04 $ */ |
