lib/gnutls_srp.h

   1 /*
   2  * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
   3  *
   4  * Author: Nikos Mavrogiannopoulos
   5  *
   6  * This file is part of GNUTLS.
   7  *
   8  * The GNUTLS library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public License
  10  * as published by the Free Software Foundation; either version 2.1 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  21  * USA
  22  *
  23  */
  24
  25 #ifdef ENABLE_SRP
  26
  27 int _gnutls_srp_gx (opaque * text, size_t textsize, opaque ** result,
  28                     mpi_t g, mpi_t prime, gnutls_alloc_function);
  29 mpi_t _gnutls_calc_srp_B (mpi_t * ret_b, mpi_t g, mpi_t n, mpi_t v);
  30 mpi_t _gnutls_calc_srp_u (mpi_t A, mpi_t B, mpi_t N);
  31 mpi_t _gnutls_calc_srp_S1 (mpi_t A, mpi_t b, mpi_t u, mpi_t v, mpi_t n);
  32 mpi_t _gnutls_calc_srp_A (mpi_t * a, mpi_t g, mpi_t n);
  33 mpi_t _gnutls_calc_srp_S2 (mpi_t B, mpi_t g, mpi_t x, mpi_t a, mpi_t u,
  34                            mpi_t n);
  35 int _gnutls_calc_srp_x (char *username, char *password, opaque * salt,
  36                         size_t salt_size, size_t * size, void *digest);
  37 int _gnutls_srp_gn (opaque ** ret_g, opaque ** ret_n, int bits);
  38
  39 /* g is defined to be 2 */
  40 #define SRP_MAX_HASH_SIZE 24
  41
  42 #endif