lib/gnutls_srp.h

   1 /*
   2  * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2010 Free Software
   3  * Foundation, Inc.
   4  *
   5  * Author: Nikos Mavrogiannopoulos
   6  *
   7  * This file is part of GnuTLS.
   8  *
   9  * The GnuTLS is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public License
  11  * as published by the Free Software Foundation; either version 2.1 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  22  * USA
  23  *
  24  */
  25
  26 #ifdef ENABLE_SRP
  27
  28 int _gnutls_srp_gx (opaque * text, size_t textsize, opaque ** result,
  29                     bigint_t g, bigint_t prime, gnutls_alloc_function);
  30 bigint_t _gnutls_calc_srp_B (bigint_t * ret_b, bigint_t g, bigint_t n,
  31                              bigint_t v);
  32 bigint_t _gnutls_calc_srp_u (bigint_t A, bigint_t B, bigint_t N);
  33 bigint_t _gnutls_calc_srp_S1 (bigint_t A, bigint_t b, bigint_t u, bigint_t v,
  34                               bigint_t n);
  35 bigint_t _gnutls_calc_srp_A (bigint_t * a, bigint_t g, bigint_t n);
  36 bigint_t _gnutls_calc_srp_S2 (bigint_t B, bigint_t g, bigint_t x, bigint_t a,
  37                               bigint_t u, bigint_t n);
  38 int _gnutls_calc_srp_x (char *username, char *password, opaque * salt,
  39                         size_t salt_size, size_t * size, void *digest);
  40 int _gnutls_srp_gn (opaque ** ret_g, opaque ** ret_n, int bits);
  41
  42 /* g is defined to be 2 */
  43 #define SRP_MAX_HASH_SIZE 24
  44
  45 #endif