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git.ipfire.org Git - thirdparty/openssl.git/blob - include/openssl/srp.h
2 * Copyright 2004-2018 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2004, EdelKey Project. All Rights Reserved.
5 * Licensed under the Apache License 2.0 (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
10 * Originally written by Christophe Renou and Peter Sylvester,
11 * for the EdelKey project.
17 #include <openssl/opensslconf.h>
19 #ifndef OPENSSL_NO_SRP
22 # include <openssl/safestack.h>
23 # include <openssl/bn.h>
24 # include <openssl/crypto.h>
30 typedef struct SRP_gN_cache_st
{
36 DEFINE_STACK_OF(SRP_gN_cache
)
38 typedef struct SRP_user_pwd_st
{
43 /* Not owned by us. */
50 SRP_user_pwd
*SRP_user_pwd_new(void);
51 void SRP_user_pwd_free(SRP_user_pwd
*user_pwd
);
53 void SRP_user_pwd_set_gN(SRP_user_pwd
*user_pwd
, const BIGNUM
*g
, const BIGNUM
*N
);
54 int SRP_user_pwd_set1_ids(SRP_user_pwd
*user_pwd
, const char *id
, const char *info
);
55 int SRP_user_pwd_set0_sv(SRP_user_pwd
*user_pwd
, BIGNUM
*s
, BIGNUM
*v
);
57 DEFINE_STACK_OF(SRP_user_pwd
)
59 typedef struct SRP_VBASE_st
{
60 STACK_OF(SRP_user_pwd
) *users_pwd
;
61 STACK_OF(SRP_gN_cache
) *gN_cache
;
62 /* to simulate a user */
64 const BIGNUM
*default_g
;
65 const BIGNUM
*default_N
;
69 * Internal structure storing N and g pair
71 typedef struct SRP_gN_st
{
77 DEFINE_STACK_OF(SRP_gN
)
79 SRP_VBASE
*SRP_VBASE_new(char *seed_key
);
80 void SRP_VBASE_free(SRP_VBASE
*vb
);
81 int SRP_VBASE_init(SRP_VBASE
*vb
, char *verifier_file
);
83 int SRP_VBASE_add0_user(SRP_VBASE
*vb
, SRP_user_pwd
*user_pwd
);
84 /* This method ignores the configured seed and fails for an unknown user. */
85 DEPRECATEDIN_1_1_0(SRP_user_pwd
*SRP_VBASE_get_by_user(SRP_VBASE
*vb
, char *username
))
86 /* NOTE: unlike in SRP_VBASE_get_by_user, caller owns the returned pointer.*/
87 SRP_user_pwd
*SRP_VBASE_get1_by_user(SRP_VBASE
*vb
, char *username
);
89 char *SRP_create_verifier(const char *user
, const char *pass
, char **salt
,
90 char **verifier
, const char *N
, const char *g
);
91 int SRP_create_verifier_BN(const char *user
, const char *pass
, BIGNUM
**salt
,
92 BIGNUM
**verifier
, const BIGNUM
*N
,
95 # define SRP_NO_ERROR 0
96 # define SRP_ERR_VBASE_INCOMPLETE_FILE 1
97 # define SRP_ERR_VBASE_BN_LIB 2
98 # define SRP_ERR_OPEN_FILE 3
99 # define SRP_ERR_MEMORY 4
101 # define DB_srptype 0
102 # define DB_srpverifier 1
103 # define DB_srpsalt 2
106 # define DB_srpinfo 5
110 # define DB_SRP_INDEX 'I'
111 # define DB_SRP_VALID 'V'
112 # define DB_SRP_REVOKED 'R'
113 # define DB_SRP_MODIF 'v'
116 char *SRP_check_known_gN_param(const BIGNUM
*g
, const BIGNUM
*N
);
117 SRP_gN
*SRP_get_default_gN(const char *id
);
119 /* server side .... */
120 BIGNUM
*SRP_Calc_server_key(const BIGNUM
*A
, const BIGNUM
*v
, const BIGNUM
*u
,
121 const BIGNUM
*b
, const BIGNUM
*N
);
122 BIGNUM
*SRP_Calc_B(const BIGNUM
*b
, const BIGNUM
*N
, const BIGNUM
*g
,
124 int SRP_Verify_A_mod_N(const BIGNUM
*A
, const BIGNUM
*N
);
125 BIGNUM
*SRP_Calc_u(const BIGNUM
*A
, const BIGNUM
*B
, const BIGNUM
*N
);
127 /* client side .... */
128 BIGNUM
*SRP_Calc_x(const BIGNUM
*s
, const char *user
, const char *pass
);
129 BIGNUM
*SRP_Calc_A(const BIGNUM
*a
, const BIGNUM
*N
, const BIGNUM
*g
);
130 BIGNUM
*SRP_Calc_client_key(const BIGNUM
*N
, const BIGNUM
*B
, const BIGNUM
*g
,
131 const BIGNUM
*x
, const BIGNUM
*a
, const BIGNUM
*u
);
132 int SRP_Verify_B_mod_N(const BIGNUM
*B
, const BIGNUM
*N
);
134 # define SRP_MINIMAL_N 1024