text: #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: $Format:%ai$ */
  