mirror of
https://github.com/Laupetin/OpenAssetTools.git
synced 2025-04-21 16:45:44 +00:00
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
|
|
*
|
|
* LibTomCrypt is a library that provides various cryptographic
|
|
* algorithms in a highly modular and flexible manner.
|
|
*
|
|
* The library is free for all purposes without any express
|
|
* guarantee it works.
|
|
*/
|
|
#include "tomcrypt.h"
|
|
|
|
/**
|
|
@file der_length_utctime.c
|
|
ASN.1 DER, get length of GeneralizedTime, Steffen Jaeckel
|
|
Based on der_length_utctime.c
|
|
*/
|
|
|
|
#ifdef LTC_DER
|
|
|
|
/**
|
|
Gets length of DER encoding of GeneralizedTime
|
|
@param gtime The GeneralizedTime structure to get the size of
|
|
@param outlen [out] The length of the DER encoding
|
|
@return CRYPT_OK if successful
|
|
*/
|
|
int der_length_generalizedtime(ltc_generalizedtime *gtime, unsigned long *outlen)
|
|
{
|
|
LTC_ARGCHK(outlen != NULL);
|
|
LTC_ARGCHK(gtime != NULL);
|
|
|
|
if (gtime->fs == 0) {
|
|
/* we encode as YYYYMMDDhhmmssZ */
|
|
*outlen = 2 + 14 + 1;
|
|
} else {
|
|
unsigned long len = 2 + 14 + 1;
|
|
unsigned fs = gtime->fs;
|
|
do {
|
|
fs /= 10;
|
|
len++;
|
|
} while(fs != 0);
|
|
if (gtime->off_hh == 0 && gtime->off_mm == 0) {
|
|
/* we encode as YYYYMMDDhhmmss.fsZ */
|
|
len += 1;
|
|
}
|
|
else {
|
|
/* we encode as YYYYMMDDhhmmss.fs{+|-}hh'mm' */
|
|
len += 5;
|
|
}
|
|
*outlen = len;
|
|
}
|
|
|
|
return CRYPT_OK;
|
|
}
|
|
|
|
#endif
|
|
|
|
/* ref: HEAD -> master, tag: v1.18.2 */
|
|
/* git commit: 7e7eb695d581782f04b24dc444cbfde86af59853 */
|
|
/* commit time: 2018-07-01 22:49:01 +0200 */
|