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| 1 /* crypto/srp/srp.h */ | |
| 2 /* Written by Christophe Renou (christophe.renou@edelweb.fr) with | |
| 3 * the precious help of Peter Sylvester (peter.sylvester@edelweb.fr) | |
| 4 * for the EdelKey project and contributed to the OpenSSL project 2004. | |
| 5 */ | |
| 6 /* ==================================================================== | |
| 7 * Copyright (c) 2004 The OpenSSL Project. All rights reserved. | |
| 8 * | |
| 9 * Redistribution and use in source and binary forms, with or without | |
| 10 * modification, are permitted provided that the following conditions | |
| 11 * are met: | |
| 12 * | |
| 13 * 1. Redistributions of source code must retain the above copyright | |
| 14 * notice, this list of conditions and the following disclaimer. | |
| 15 * | |
| 16 * 2. Redistributions in binary form must reproduce the above copyright | |
| 17 * notice, this list of conditions and the following disclaimer in | |
| 18 * the documentation and/or other materials provided with the | |
| 19 * distribution. | |
| 20 * | |
| 21 * 3. All advertising materials mentioning features or use of this | |
| 22 * software must display the following acknowledgment: | |
| 23 * "This product includes software developed by the OpenSSL Project | |
| 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 25 * | |
| 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 27 * endorse or promote products derived from this software without | |
| 28 * prior written permission. For written permission, please contact | |
| 29 * licensing@OpenSSL.org. | |
| 30 * | |
| 31 * 5. Products derived from this software may not be called "OpenSSL" | |
| 32 * nor may "OpenSSL" appear in their names without prior written | |
| 33 * permission of the OpenSSL Project. | |
| 34 * | |
| 35 * 6. Redistributions of any form whatsoever must retain the following | |
| 36 * acknowledgment: | |
| 37 * "This product includes software developed by the OpenSSL Project | |
| 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 39 * | |
| 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 51 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 52 * ==================================================================== | |
| 53 * | |
| 54 * This product includes cryptographic software written by Eric Young | |
| 55 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 56 * Hudson (tjh@cryptsoft.com). | |
| 57 * | |
| 58 */ | |
| 59 #ifndef __SRP_H__ | |
| 60 #define __SRP_H__ | |
| 61 | |
| 62 #ifndef OPENSSL_NO_SRP | |
| 63 | |
| 64 #include <stdio.h> | |
| 65 #include <string.h> | |
| 66 | |
| 67 #ifdef __cplusplus | |
| 68 extern "C" { | |
| 69 #endif | |
| 70 | |
| 71 #include <openssl/safestack.h> | |
| 72 #include <openssl/bn.h> | |
| 73 #include <openssl/crypto.h> | |
| 74 | |
| 75 typedef struct SRP_gN_cache_st | |
| 76 { | |
| 77 char *b64_bn; | |
| 78 BIGNUM *bn; | |
| 79 } SRP_gN_cache; | |
| 80 | |
| 81 | |
| 82 DECLARE_STACK_OF(SRP_gN_cache) | |
| 83 | |
| 84 typedef struct SRP_user_pwd_st | |
| 85 { | |
| 86 char *id; | |
| 87 BIGNUM *s; | |
| 88 BIGNUM *v; | |
| 89 const BIGNUM *g; | |
| 90 const BIGNUM *N; | |
| 91 char *info; | |
| 92 } SRP_user_pwd; | |
| 93 | |
| 94 DECLARE_STACK_OF(SRP_user_pwd) | |
| 95 | |
| 96 typedef struct SRP_VBASE_st | |
| 97 { | |
| 98 STACK_OF(SRP_user_pwd) *users_pwd; | |
| 99 STACK_OF(SRP_gN_cache) *gN_cache; | |
| 100 /* to simulate a user */ | |
| 101 char *seed_key; | |
| 102 BIGNUM *default_g; | |
| 103 BIGNUM *default_N; | |
| 104 } SRP_VBASE; | |
| 105 | |
| 106 | |
| 107 /*Structure interne pour retenir les couples N et g*/ | |
| 108 typedef struct SRP_gN_st | |
| 109 { | |
| 110 char *id; | |
| 111 BIGNUM *g; | |
| 112 BIGNUM *N; | |
| 113 } SRP_gN; | |
| 114 | |
| 115 DECLARE_STACK_OF(SRP_gN) | |
| 116 | |
| 117 SRP_VBASE *SRP_VBASE_new(char *seed_key); | |
| 118 int SRP_VBASE_free(SRP_VBASE *vb); | |
| 119 int SRP_VBASE_init(SRP_VBASE *vb, char * verifier_file); | |
| 120 SRP_user_pwd *SRP_VBASE_get_by_user(SRP_VBASE *vb, char *username); | |
| 121 char *SRP_create_verifier(const char *user, const char *pass, char **salt, | |
| 122 char **verifier, const char *N, const char *g); | |
| 123 int SRP_create_verifier_BN(const char *user, const char *pass, BIGNUM **salt, BI
GNUM **verifier, BIGNUM *N, BIGNUM *g); | |
| 124 | |
| 125 | |
| 126 #define SRP_NO_ERROR 0 | |
| 127 #define SRP_ERR_VBASE_INCOMPLETE_FILE 1 | |
| 128 #define SRP_ERR_VBASE_BN_LIB 2 | |
| 129 #define SRP_ERR_OPEN_FILE 3 | |
| 130 #define SRP_ERR_MEMORY 4 | |
| 131 | |
| 132 #define DB_srptype 0 | |
| 133 #define DB_srpverifier 1 | |
| 134 #define DB_srpsalt 2 | |
| 135 #define DB_srpid 3 | |
| 136 #define DB_srpgN 4 | |
| 137 #define DB_srpinfo 5 | |
| 138 #undef DB_NUMBER | |
| 139 #define DB_NUMBER 6 | |
| 140 | |
| 141 #define DB_SRP_INDEX 'I' | |
| 142 #define DB_SRP_VALID 'V' | |
| 143 #define DB_SRP_REVOKED 'R' | |
| 144 #define DB_SRP_MODIF 'v' | |
| 145 | |
| 146 | |
| 147 /* see srp.c */ | |
| 148 char * SRP_check_known_gN_param(BIGNUM* g, BIGNUM* N); | |
| 149 SRP_gN *SRP_get_default_gN(const char * id) ; | |
| 150 | |
| 151 /* server side .... */ | |
| 152 BIGNUM *SRP_Calc_server_key(BIGNUM *A, BIGNUM *v, BIGNUM *u, BIGNUM *b, BIGNUM *
N); | |
| 153 BIGNUM *SRP_Calc_B(BIGNUM *b, BIGNUM *N, BIGNUM *g, BIGNUM *v); | |
| 154 int SRP_Verify_A_mod_N(BIGNUM *A, BIGNUM *N); | |
| 155 BIGNUM *SRP_Calc_u(BIGNUM *A, BIGNUM *B, BIGNUM *N) ; | |
| 156 | |
| 157 | |
| 158 | |
| 159 /* client side .... */ | |
| 160 BIGNUM *SRP_Calc_x(BIGNUM *s, const char *user, const char *pass); | |
| 161 BIGNUM *SRP_Calc_A(BIGNUM *a, BIGNUM *N, BIGNUM *g); | |
| 162 BIGNUM *SRP_Calc_client_key(BIGNUM *N, BIGNUM *B, BIGNUM *g, BIGNUM *x, BIGNUM *
a, BIGNUM *u); | |
| 163 int SRP_Verify_B_mod_N(BIGNUM *B, BIGNUM *N); | |
| 164 | |
| 165 #define SRP_MINIMAL_N 1024 | |
| 166 | |
| 167 #ifdef __cplusplus | |
| 168 } | |
| 169 #endif | |
| 170 | |
| 171 #endif | |
| 172 #endif | |
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