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kc3-lang/libtommath/bn_mp_sqrmod.c

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  • Author : Francois Perrad
    Date : 2017-08-30 20:08:58
    Hash : d6a9a58f
    Message : remove space after function name and cast

  • bn_mp_sqrmod.c
  • #include <tommath_private.h>
    #ifdef BN_MP_SQRMOD_C
    /* LibTomMath, multiple-precision integer library -- Tom St Denis
     *
     * LibTomMath is a library that provides multiple-precision
     * integer arithmetic as well as number theoretic functionality.
     *
     * The library was designed directly after the MPI library by
     * Michael Fromberger but has been written from scratch with
     * additional optimizations in place.
     *
     * The library is free for all purposes without any express
     * guarantee it works.
     *
     * Tom St Denis, tstdenis82@gmail.com, http://libtom.org
     */
    
    /* c = a * a (mod b) */
    int
    mp_sqrmod (mp_int * a, mp_int * b, mp_int * c)
    {
      int     res;
      mp_int  t;
    
      if ((res = mp_init(&t)) != MP_OKAY) {
        return res;
      }
    
      if ((res = mp_sqr(a, &t)) != MP_OKAY) {
        mp_clear(&t);
        return res;
      }
      res = mp_mod(&t, b, c);
      mp_clear(&t);
      return res;
    }
    #endif
    
    /* ref:         $Format:%D$ */
    /* git commit:  $Format:%H$ */
    /* commit time: $Format:%ai$ */