annotate libtomcrypt/src/pk/asn1/der/utctime/der_length_utctime.c @ 1717:295377ecbf49

Add DEVELOPING.md
author Matt Johnston <matt@ucc.asn.au>
date Mon, 15 Jun 2020 22:30:28 +0800
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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 der_length_utctime.c
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13 ASN.1 DER, get length of UTCTIME, Tom St Denis
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14 */
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16 #ifdef LTC_DER
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18 /**
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19 Gets length of DER encoding of UTCTIME
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20 @param utctime The UTC time structure to get the size of
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21 @param outlen [out] The length of the DER encoding
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22 @return CRYPT_OK if successful
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23 */
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24 int der_length_utctime(ltc_utctime *utctime, unsigned long *outlen)
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25 {
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26 LTC_ARGCHK(outlen != NULL);
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27 LTC_ARGCHK(utctime != NULL);
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29 if (utctime->off_hh == 0 && utctime->off_mm == 0) {
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30 /* we encode as YYMMDDhhmmssZ */
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31 *outlen = 2 + 13;
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32 } else {
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33 /* we encode as YYMMDDhhmmss{+|-}hh'mm' */
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34 *outlen = 2 + 17;
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35 }
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37 return CRYPT_OK;
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38 }
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40 #endif
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41
1471
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42 /* ref: $Format:%D$ */
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43 /* git commit: $Format:%H$ */
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44 /* commit time: $Format:%ai$ */