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135 lines
3.7 KiB
C
135 lines
3.7 KiB
C
/*
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* Copyright 2004-2018 The OpenSSL Project Authors. All Rights Reserved.
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* Copyright (c) 2004, EdelKey Project. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*
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* Originally written by Christophe Renou and Peter Sylvester,
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* for the EdelKey project.
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*/
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#ifndef HEADER_SRP_H
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# define HEADER_SRP_H
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_SRP
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# include <stdio.h>
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# include <string.h>
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# include <openssl/safestack.h>
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# include <openssl/bn.h>
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# include <openssl/crypto.h>
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# ifdef __cplusplus
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extern "C" {
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# endif
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typedef struct SRP_gN_cache_st {
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char *b64_bn;
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BIGNUM *bn;
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} SRP_gN_cache;
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DEFINE_STACK_OF(SRP_gN_cache)
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typedef struct SRP_user_pwd_st {
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/* Owned by us. */
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char *id;
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BIGNUM *s;
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BIGNUM *v;
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/* Not owned by us. */
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const BIGNUM *g;
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const BIGNUM *N;
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/* Owned by us. */
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char *info;
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} SRP_user_pwd;
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void SRP_user_pwd_free(SRP_user_pwd *user_pwd);
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DEFINE_STACK_OF(SRP_user_pwd)
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typedef struct SRP_VBASE_st {
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STACK_OF(SRP_user_pwd) *users_pwd;
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STACK_OF(SRP_gN_cache) *gN_cache;
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/* to simulate a user */
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char *seed_key;
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const BIGNUM *default_g;
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const BIGNUM *default_N;
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} SRP_VBASE;
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/*
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* Internal structure storing N and g pair
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*/
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typedef struct SRP_gN_st {
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char *id;
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const BIGNUM *g;
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const BIGNUM *N;
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} SRP_gN;
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DEFINE_STACK_OF(SRP_gN)
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SRP_VBASE *SRP_VBASE_new(char *seed_key);
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void SRP_VBASE_free(SRP_VBASE *vb);
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int SRP_VBASE_init(SRP_VBASE *vb, char *verifier_file);
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/* This method ignores the configured seed and fails for an unknown user. */
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DEPRECATEDIN_1_1_0(SRP_user_pwd *SRP_VBASE_get_by_user(SRP_VBASE *vb, char *username))
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/* NOTE: unlike in SRP_VBASE_get_by_user, caller owns the returned pointer.*/
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SRP_user_pwd *SRP_VBASE_get1_by_user(SRP_VBASE *vb, char *username);
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char *SRP_create_verifier(const char *user, const char *pass, char **salt,
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char **verifier, const char *N, const char *g);
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int SRP_create_verifier_BN(const char *user, const char *pass, BIGNUM **salt,
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BIGNUM **verifier, const BIGNUM *N,
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const BIGNUM *g);
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# define SRP_NO_ERROR 0
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# define SRP_ERR_VBASE_INCOMPLETE_FILE 1
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# define SRP_ERR_VBASE_BN_LIB 2
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# define SRP_ERR_OPEN_FILE 3
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# define SRP_ERR_MEMORY 4
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# define DB_srptype 0
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# define DB_srpverifier 1
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# define DB_srpsalt 2
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# define DB_srpid 3
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# define DB_srpgN 4
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# define DB_srpinfo 5
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# undef DB_NUMBER
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# define DB_NUMBER 6
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# define DB_SRP_INDEX 'I'
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# define DB_SRP_VALID 'V'
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# define DB_SRP_REVOKED 'R'
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# define DB_SRP_MODIF 'v'
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/* see srp.c */
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char *SRP_check_known_gN_param(const BIGNUM *g, const BIGNUM *N);
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SRP_gN *SRP_get_default_gN(const char *id);
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/* server side .... */
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BIGNUM *SRP_Calc_server_key(const BIGNUM *A, const BIGNUM *v, const BIGNUM *u,
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const BIGNUM *b, const BIGNUM *N);
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BIGNUM *SRP_Calc_B(const BIGNUM *b, const BIGNUM *N, const BIGNUM *g,
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const BIGNUM *v);
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int SRP_Verify_A_mod_N(const BIGNUM *A, const BIGNUM *N);
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BIGNUM *SRP_Calc_u(const BIGNUM *A, const BIGNUM *B, const BIGNUM *N);
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/* client side .... */
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BIGNUM *SRP_Calc_x(const BIGNUM *s, const char *user, const char *pass);
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BIGNUM *SRP_Calc_A(const BIGNUM *a, const BIGNUM *N, const BIGNUM *g);
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BIGNUM *SRP_Calc_client_key(const BIGNUM *N, const BIGNUM *B, const BIGNUM *g,
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const BIGNUM *x, const BIGNUM *a, const BIGNUM *u);
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int SRP_Verify_B_mod_N(const BIGNUM *B, const BIGNUM *N);
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# define SRP_MINIMAL_N 1024
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# ifdef __cplusplus
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}
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# endif
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# endif
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#endif
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