Mercurial > dropbear

annotate libtomcrypt/src/mac/pmac/pmac_ntz.c @ 1689:d2d3b5ba6c64

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update travis to Ubuntu focal to provide chacha20
author Matt Johnston <matt@ucc.asn.au>
date Tue, 26 May 2020 23:13:48 +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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10
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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11 /**
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12 @file pmac_ntz.c
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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13 PMAC implementation, internal function, by Tom St Denis
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14 */
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16 #ifdef LTC_PMAC
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18 /**
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19 Internal PMAC function
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20 */
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21 int pmac_ntz(unsigned long x)
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22 {
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23 int c;
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24 x &= 0xFFFFFFFFUL;
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25 c = 0;
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26 while ((x & 1) == 0) {
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27 ++c;
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28 x >>= 1;
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29 }
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30 return c;
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31 }
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33 #endif
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34
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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parents: 1435
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35 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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36 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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37 /* commit time: $Format:%ai$ */