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0f113f3e | 1 | /* |
3b855b1f TH |
2 | * Copyright 2004-2018 The OpenSSL Project Authors. All Rights Reserved. |
3 | * Copyright (c) 2004, EdelKey Project. All Rights Reserved. | |
edc032b5 | 4 | * |
21dcbebc RS |
5 | * Licensed under the OpenSSL license (the "License"). You may not use |
6 | * this file except in compliance with the License. You can obtain a copy | |
7 | * in the file LICENSE in the source distribution or at | |
8 | * https://www.openssl.org/source/license.html | |
3b855b1f TH |
9 | * |
10 | * Originally written by Christophe Renou and Peter Sylvester, | |
11 | * for the EdelKey project. | |
edc032b5 | 12 | */ |
21dcbebc | 13 | |
3c27208f RS |
14 | #ifndef HEADER_SRP_H |
15 | # define HEADER_SRP_H | |
edc032b5 | 16 | |
857048a7 | 17 | #include <openssl/opensslconf.h> |
edc032b5 | 18 | |
3c27208f | 19 | #ifndef OPENSSL_NO_SRP |
857048a7 RS |
20 | # include <stdio.h> |
21 | # include <string.h> | |
857048a7 RS |
22 | # include <openssl/safestack.h> |
23 | # include <openssl/bn.h> | |
24 | # include <openssl/crypto.h> | |
edc032b5 | 25 | |
3c27208f RS |
26 | # ifdef __cplusplus |
27 | extern "C" { | |
28 | # endif | |
29 | ||
0f113f3e MC |
30 | typedef struct SRP_gN_cache_st { |
31 | char *b64_bn; | |
32 | BIGNUM *bn; | |
33 | } SRP_gN_cache; | |
edc032b5 BL |
34 | |
35 | ||
85885715 | 36 | DEFINE_STACK_OF(SRP_gN_cache) |
edc032b5 | 37 | |
0f113f3e | 38 | typedef struct SRP_user_pwd_st { |
380f18ed | 39 | /* Owned by us. */ |
0f113f3e MC |
40 | char *id; |
41 | BIGNUM *s; | |
42 | BIGNUM *v; | |
380f18ed | 43 | /* Not owned by us. */ |
0f113f3e MC |
44 | const BIGNUM *g; |
45 | const BIGNUM *N; | |
380f18ed | 46 | /* Owned by us. */ |
0f113f3e MC |
47 | char *info; |
48 | } SRP_user_pwd; | |
edc032b5 | 49 | |
380f18ed EK |
50 | void SRP_user_pwd_free(SRP_user_pwd *user_pwd); |
51 | ||
85885715 | 52 | DEFINE_STACK_OF(SRP_user_pwd) |
edc032b5 | 53 | |
0f113f3e MC |
54 | typedef struct SRP_VBASE_st { |
55 | STACK_OF(SRP_user_pwd) *users_pwd; | |
56 | STACK_OF(SRP_gN_cache) *gN_cache; | |
edc032b5 | 57 | /* to simulate a user */ |
0f113f3e | 58 | char *seed_key; |
98370c2d MC |
59 | const BIGNUM *default_g; |
60 | const BIGNUM *default_N; | |
0f113f3e | 61 | } SRP_VBASE; |
edc032b5 | 62 | |
0f113f3e | 63 | /* |
02e112a8 | 64 | * Internal structure storing N and g pair |
0f113f3e MC |
65 | */ |
66 | typedef struct SRP_gN_st { | |
67 | char *id; | |
98370c2d MC |
68 | const BIGNUM *g; |
69 | const BIGNUM *N; | |
0f113f3e | 70 | } SRP_gN; |
edc032b5 | 71 | |
85885715 | 72 | DEFINE_STACK_OF(SRP_gN) |
edc032b5 BL |
73 | |
74 | SRP_VBASE *SRP_VBASE_new(char *seed_key); | |
895cba19 | 75 | void SRP_VBASE_free(SRP_VBASE *vb); |
0f113f3e | 76 | int SRP_VBASE_init(SRP_VBASE *vb, char *verifier_file); |
380f18ed EK |
77 | |
78 | /* This method ignores the configured seed and fails for an unknown user. */ | |
79 | DEPRECATEDIN_1_1_0(SRP_user_pwd *SRP_VBASE_get_by_user(SRP_VBASE *vb, char *username)) | |
80 | /* NOTE: unlike in SRP_VBASE_get_by_user, caller owns the returned pointer.*/ | |
81 | SRP_user_pwd *SRP_VBASE_get1_by_user(SRP_VBASE *vb, char *username); | |
82 | ||
edc032b5 | 83 | char *SRP_create_verifier(const char *user, const char *pass, char **salt, |
0f113f3e MC |
84 | char **verifier, const char *N, const char *g); |
85 | int SRP_create_verifier_BN(const char *user, const char *pass, BIGNUM **salt, | |
86 | BIGNUM **verifier, const BIGNUM *N, | |
87 | const BIGNUM *g); | |
88 | ||
857048a7 RS |
89 | # define SRP_NO_ERROR 0 |
90 | # define SRP_ERR_VBASE_INCOMPLETE_FILE 1 | |
91 | # define SRP_ERR_VBASE_BN_LIB 2 | |
92 | # define SRP_ERR_OPEN_FILE 3 | |
93 | # define SRP_ERR_MEMORY 4 | |
94 | ||
95 | # define DB_srptype 0 | |
96 | # define DB_srpverifier 1 | |
97 | # define DB_srpsalt 2 | |
98 | # define DB_srpid 3 | |
99 | # define DB_srpgN 4 | |
100 | # define DB_srpinfo 5 | |
101 | # undef DB_NUMBER | |
102 | # define DB_NUMBER 6 | |
103 | ||
104 | # define DB_SRP_INDEX 'I' | |
105 | # define DB_SRP_VALID 'V' | |
106 | # define DB_SRP_REVOKED 'R' | |
107 | # define DB_SRP_MODIF 'v' | |
edc032b5 BL |
108 | |
109 | /* see srp.c */ | |
98370c2d | 110 | char *SRP_check_known_gN_param(const BIGNUM *g, const BIGNUM *N); |
0f113f3e | 111 | SRP_gN *SRP_get_default_gN(const char *id); |
edc032b5 BL |
112 | |
113 | /* server side .... */ | |
98370c2d MC |
114 | BIGNUM *SRP_Calc_server_key(const BIGNUM *A, const BIGNUM *v, const BIGNUM *u, |
115 | const BIGNUM *b, const BIGNUM *N); | |
116 | BIGNUM *SRP_Calc_B(const BIGNUM *b, const BIGNUM *N, const BIGNUM *g, | |
117 | const BIGNUM *v); | |
118 | int SRP_Verify_A_mod_N(const BIGNUM *A, const BIGNUM *N); | |
119 | BIGNUM *SRP_Calc_u(const BIGNUM *A, const BIGNUM *B, const BIGNUM *N); | |
edc032b5 BL |
120 | |
121 | /* client side .... */ | |
98370c2d MC |
122 | BIGNUM *SRP_Calc_x(const BIGNUM *s, const char *user, const char *pass); |
123 | BIGNUM *SRP_Calc_A(const BIGNUM *a, const BIGNUM *N, const BIGNUM *g); | |
124 | BIGNUM *SRP_Calc_client_key(const BIGNUM *N, const BIGNUM *B, const BIGNUM *g, | |
125 | const BIGNUM *x, const BIGNUM *a, const BIGNUM *u); | |
126 | int SRP_Verify_B_mod_N(const BIGNUM *B, const BIGNUM *N); | |
edc032b5 | 127 | |
857048a7 | 128 | # define SRP_MINIMAL_N 1024 |
edc032b5 | 129 | |
3c27208f | 130 | # ifdef __cplusplus |
edc032b5 | 131 | } |
3c27208f RS |
132 | # endif |
133 | # endif | |
edc032b5 | 134 | |
edc032b5 | 135 | #endif |