view libtomcrypt/src/mac/pmac/pmac_ntz.c @ 1593:c8c20fb57a9a

Don't read uninitialised value. From https://github.com/libtom/libtommath/commit/1d03522625f46214733e8e143a4765c01fc146f9
author Matt Johnston <matt@ucc.asn.au>
date Mon, 05 Mar 2018 16:50:24 +0800
parents 6dba84798cd5
children
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/* 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 pmac_ntz.c
   PMAC implementation, internal function, by Tom St Denis
*/

#ifdef LTC_PMAC

/**
  Internal PMAC function
*/
int pmac_ntz(unsigned long x)
{
   int c;
   x &= 0xFFFFFFFFUL;
   c = 0;
   while ((x & 1) == 0) {
      ++c;
      x >>= 1;
   }
   return c;
}

#endif

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