tomcrypt/pmac_ntz.c
2010-06-16 12:38:11 +02:00

30 lines
569 B
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.
*
* Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
*/
/* PMAC implementation by Tom St Denis */
#include "mycrypt.h"
#ifdef PMAC
int pmac_ntz(unsigned long x)
{
int c;
x &= 0xFFFFFFFFUL;
c = 0;
while ((x & 1) == 0) {
++c;
x >>= 1;
}
return c;
}
#endif