view libtomcrypt/src/mac/pmac/pmac_ntz.c @ 692:c58a15983808

Allow configuring "allow blank password option" at runtime Changes this from a compile-time switch to a command-line option. Signed-off-by: Paul Eggleton <[email protected]>
author Paul Eggleton <paul.eggleton@linux.intel.com>
date Tue, 12 Feb 2013 15:52:57 +0000
parents 0cbe8f6dbf9e
children f849a5ca2efc
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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.
 *
 * Tom St Denis, [email protected], http://libtomcrypt.com
 */
#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

/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_ntz.c,v $ */
/* $Revision: 1.5 $ */
/* $Date: 2006/11/03 00:39:49 $ */