1392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom/* crypto/srp/srp.h */ 2392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom/* Written by Christophe Renou (christophe.renou@edelweb.fr) with 3392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * the precious help of Peter Sylvester (peter.sylvester@edelweb.fr) 4392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * for the EdelKey project and contributed to the OpenSSL project 2004. 5392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 6392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom/* ==================================================================== 7392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * Copyright (c) 2004 The OpenSSL Project. All rights reserved. 8392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 9392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * Redistribution and use in source and binary forms, with or without 10392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * modification, are permitted provided that the following conditions 11392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * are met: 12392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 13392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 1. Redistributions of source code must retain the above copyright 14392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * notice, this list of conditions and the following disclaimer. 15392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 16392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 2. Redistributions in binary form must reproduce the above copyright 17392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * notice, this list of conditions and the following disclaimer in 18392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * the documentation and/or other materials provided with the 19392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * distribution. 20392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 21392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 3. All advertising materials mentioning features or use of this 22392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * software must display the following acknowledgment: 23392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * "This product includes software developed by the OpenSSL Project 24392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 26392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * endorse or promote products derived from this software without 28392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * prior written permission. For written permission, please contact 29392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * licensing@OpenSSL.org. 30392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 31392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 5. Products derived from this software may not be called "OpenSSL" 32392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * nor may "OpenSSL" appear in their names without prior written 33392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * permission of the OpenSSL Project. 34392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 35392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 6. Redistributions of any form whatsoever must retain the following 36392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * acknowledgment: 37392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * "This product includes software developed by the OpenSSL Project 38392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 40392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * OF THE POSSIBILITY OF SUCH DAMAGE. 52392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * ==================================================================== 53392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 54392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * This product includes cryptographic software written by Eric Young 55392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * (eay@cryptsoft.com). This product includes software written by Tim 56392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * Hudson (tjh@cryptsoft.com). 57392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom * 58392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom */ 59392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef __SRP_H__ 60392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define __SRP_H__ 61392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 62392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifndef OPENSSL_NO_SRP 63392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 64392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#include <stdio.h> 65392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#include <string.h> 66392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 67392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifdef __cplusplus 68392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromextern "C" { 69392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 70392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 71392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#include <openssl/safestack.h> 72392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#include <openssl/bn.h> 73392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#include <openssl/crypto.h> 74392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 75392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromtypedef struct SRP_gN_cache_st 76392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 77392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom char *b64_bn; 78392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIGNUM *bn; 79392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } SRP_gN_cache; 80392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 81392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 82392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromDECLARE_STACK_OF(SRP_gN_cache) 83392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 84392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromtypedef struct SRP_user_pwd_st 85392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 86392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom char *id; 87392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIGNUM *s; 88392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIGNUM *v; 89392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom const BIGNUM *g; 90392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom const BIGNUM *N; 91392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom char *info; 92392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } SRP_user_pwd; 93392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 94392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromDECLARE_STACK_OF(SRP_user_pwd) 95392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 96392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromtypedef struct SRP_VBASE_st 97392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 98392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom STACK_OF(SRP_user_pwd) *users_pwd; 99392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom STACK_OF(SRP_gN_cache) *gN_cache; 100392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom/* to simulate a user */ 101392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom char *seed_key; 102392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIGNUM *default_g; 103392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIGNUM *default_N; 104392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } SRP_VBASE; 105392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 106392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 107392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom/*Structure interne pour retenir les couples N et g*/ 108392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromtypedef struct SRP_gN_st 109392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 110392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom char *id; 111392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIGNUM *g; 112392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom BIGNUM *N; 113392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } SRP_gN; 114392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 115392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromDECLARE_STACK_OF(SRP_gN) 116392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 117392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromSRP_VBASE *SRP_VBASE_new(char *seed_key); 118392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromint SRP_VBASE_free(SRP_VBASE *vb); 119392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromint SRP_VBASE_init(SRP_VBASE *vb, char * verifier_file); 120392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromSRP_user_pwd *SRP_VBASE_get_by_user(SRP_VBASE *vb, char *username); 121392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromchar *SRP_create_verifier(const char *user, const char *pass, char **salt, 122392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom char **verifier, const char *N, const char *g); 123392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromint SRP_create_verifier_BN(const char *user, const char *pass, BIGNUM **salt, BIGNUM **verifier, BIGNUM *N, BIGNUM *g); 124392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 125392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 126392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define SRP_NO_ERROR 0 127392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define SRP_ERR_VBASE_INCOMPLETE_FILE 1 128392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define SRP_ERR_VBASE_BN_LIB 2 129392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define SRP_ERR_OPEN_FILE 3 130392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define SRP_ERR_MEMORY 4 131392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 132392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_srptype 0 133392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_srpverifier 1 134392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_srpsalt 2 135392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_srpid 3 136392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_srpgN 4 137392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_srpinfo 5 138392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#undef DB_NUMBER 139392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_NUMBER 6 140392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 141392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_SRP_INDEX 'I' 142392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_SRP_VALID 'V' 143392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_SRP_REVOKED 'R' 144392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define DB_SRP_MODIF 'v' 145392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 146392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 147392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom/* see srp.c */ 148392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromchar * SRP_check_known_gN_param(BIGNUM* g, BIGNUM* N); 149392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromSRP_gN *SRP_get_default_gN(const char * id) ; 150392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 151392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom/* server side .... */ 152392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromBIGNUM *SRP_Calc_server_key(BIGNUM *A, BIGNUM *v, BIGNUM *u, BIGNUM *b, BIGNUM *N); 153392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromBIGNUM *SRP_Calc_B(BIGNUM *b, BIGNUM *N, BIGNUM *g, BIGNUM *v); 154392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromint SRP_Verify_A_mod_N(BIGNUM *A, BIGNUM *N); 155392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromBIGNUM *SRP_Calc_u(BIGNUM *A, BIGNUM *B, BIGNUM *N) ; 156392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 157392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 158392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 159392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom/* client side .... */ 160392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromBIGNUM *SRP_Calc_x(BIGNUM *s, const char *user, const char *pass); 161392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromBIGNUM *SRP_Calc_A(BIGNUM *a, BIGNUM *N, BIGNUM *g); 162392aa7cc7d2b122614c5393c3e357da07fd07af3Brian CarlstromBIGNUM *SRP_Calc_client_key(BIGNUM *N, BIGNUM *B, BIGNUM *g, BIGNUM *x, BIGNUM *a, BIGNUM *u); 163392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromint SRP_Verify_B_mod_N(BIGNUM *B, BIGNUM *N); 164392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 165392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#define SRP_MINIMAL_N 1024 166392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 167392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#ifdef __cplusplus 168392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom} 169392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 170392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 171392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 172392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom#endif 173