source: lab.git/Dev/utvpn/utvpn-unix-v101-7101-public/src/Mayaqua/openssl/dh.h @ 072e48b

trunk
Last change on this file since 072e48b was a1bae3e, checked in by mitty <mitty@…>, 12 years ago
  • copy vendor drop to trunk

git-svn-id: https://lab.mitty.jp/svn/lab/trunk@147 7d2118f6-f56c-43e7-95a2-4bb3031d96e7

  • Property mode set to 100644
File size: 8.1 KB
Line 
1/* crypto/dh/dh.h */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#ifndef HEADER_DH_H
60#define HEADER_DH_H
61
62#include <openssl/e_os2.h>
63
64#ifdef OPENSSL_NO_DH
65#error DH is disabled.
66#endif
67
68#ifndef OPENSSL_NO_BIO
69#include <openssl/bio.h>
70#endif
71#include <openssl/ossl_typ.h>
72#ifndef OPENSSL_NO_DEPRECATED
73#include <openssl/bn.h>
74#endif
75   
76#define DH_FLAG_CACHE_MONT_P     0x01
77#define DH_FLAG_NO_EXP_CONSTTIME 0x02 /* new with 0.9.7h; the built-in DH
78                                       * implementation now uses constant time
79                                       * modular exponentiation for secret exponents
80                                       * by default. This flag causes the
81                                       * faster variable sliding window method to
82                                       * be used for all exponents.
83                                       */
84
85#ifdef  __cplusplus
86extern "C" {
87#endif
88
89/* Already defined in ossl_typ.h */
90/* typedef struct dh_st DH; */
91/* typedef struct dh_method DH_METHOD; */
92
93struct dh_method
94    {
95    const char *name;
96    /* Methods here */
97    int (*generate_key)(DH *dh);
98    int (*compute_key)(unsigned char *key,const BIGNUM *pub_key,DH *dh);
99    int (*bn_mod_exp)(const DH *dh, BIGNUM *r, const BIGNUM *a,
100                const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
101                BN_MONT_CTX *m_ctx); /* Can be null */
102
103    int (*init)(DH *dh);
104    int (*finish)(DH *dh);
105    int flags;
106    char *app_data;
107    /* If this is non-NULL, it will be used to generate parameters */
108    int (*generate_params)(DH *dh, int prime_len, int generator, BN_GENCB *cb);
109    };
110
111struct dh_st
112    {
113    /* This first argument is used to pick up errors when
114     * a DH is passed instead of a EVP_PKEY */
115    int pad;
116    int version;
117    BIGNUM *p;
118    BIGNUM *g;
119    long length; /* optional */
120    BIGNUM *pub_key;    /* g^x */
121    BIGNUM *priv_key;   /* x */
122
123    int flags;
124    BN_MONT_CTX *method_mont_p;
125    /* Place holders if we want to do X9.42 DH */
126    BIGNUM *q;
127    BIGNUM *j;
128    unsigned char *seed;
129    int seedlen;
130    BIGNUM *counter;
131
132    int references;
133    CRYPTO_EX_DATA ex_data;
134    const DH_METHOD *meth;
135    ENGINE *engine;
136    };
137
138#define DH_GENERATOR_2      2
139/* #define DH_GENERATOR_3   3 */
140#define DH_GENERATOR_5      5
141
142/* DH_check error codes */
143#define DH_CHECK_P_NOT_PRIME        0x01
144#define DH_CHECK_P_NOT_SAFE_PRIME   0x02
145#define DH_UNABLE_TO_CHECK_GENERATOR    0x04
146#define DH_NOT_SUITABLE_GENERATOR   0x08
147
148/* primes p where (p-1)/2 is prime too are called "safe"; we define
149   this for backward compatibility: */
150#define DH_CHECK_P_NOT_STRONG_PRIME DH_CHECK_P_NOT_SAFE_PRIME
151
152#define DHparams_dup(x) ASN1_dup_of_const(DH,i2d_DHparams,d2i_DHparams,x)
153#define d2i_DHparams_fp(fp,x) (DH *)ASN1_d2i_fp((char *(*)())DH_new, \
154        (char *(*)())d2i_DHparams,(fp),(unsigned char **)(x))
155#define i2d_DHparams_fp(fp,x) ASN1_i2d_fp(i2d_DHparams,(fp), \
156        (unsigned char *)(x))
157#define d2i_DHparams_bio(bp,x) ASN1_d2i_bio_of(DH,DH_new,d2i_DHparams,bp,x)
158#define i2d_DHparams_bio(bp,x) ASN1_i2d_bio_of_const(DH,i2d_DHparams,bp,x)
159
160const DH_METHOD *DH_OpenSSL(void);
161
162void DH_set_default_method(const DH_METHOD *meth);
163const DH_METHOD *DH_get_default_method(void);
164int DH_set_method(DH *dh, const DH_METHOD *meth);
165DH *DH_new_method(ENGINE *engine);
166
167DH *    DH_new(void);
168void    DH_free(DH *dh);
169int DH_up_ref(DH *dh);
170int DH_size(const DH *dh);
171int DH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
172         CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
173int DH_set_ex_data(DH *d, int idx, void *arg);
174void *DH_get_ex_data(DH *d, int idx);
175
176/* Deprecated version */
177#ifndef OPENSSL_NO_DEPRECATED
178DH *    DH_generate_parameters(int prime_len,int generator,
179        void (*callback)(int,int,void *),void *cb_arg);
180#endif /* !defined(OPENSSL_NO_DEPRECATED) */
181
182/* New version */
183int DH_generate_parameters_ex(DH *dh, int prime_len,int generator, BN_GENCB *cb);
184
185int DH_check(const DH *dh,int *codes);
186int DH_generate_key(DH *dh);
187int DH_compute_key(unsigned char *key,const BIGNUM *pub_key,DH *dh);
188DH *    d2i_DHparams(DH **a,const unsigned char **pp, long length);
189int i2d_DHparams(const DH *a,unsigned char **pp);
190#ifndef OPENSSL_NO_FP_API
191int DHparams_print_fp(FILE *fp, const DH *x);
192#endif
193#ifndef OPENSSL_NO_BIO
194int DHparams_print(BIO *bp, const DH *x);
195#else
196int DHparams_print(char *bp, const DH *x);
197#endif
198
199/* BEGIN ERROR CODES */
200/* The following lines are auto generated by the script mkerr.pl. Any changes
201 * made after this point may be overwritten when the script is next run.
202 */
203void ERR_load_DH_strings(void);
204
205/* Error codes for the DH functions. */
206
207/* Function codes. */
208#define DH_F_COMPUTE_KEY                 102
209#define DH_F_DHPARAMS_PRINT              100
210#define DH_F_DHPARAMS_PRINT_FP               101
211#define DH_F_DH_BUILTIN_GENPARAMS            106
212#define DH_F_DH_NEW_METHOD               105
213#define DH_F_GENERATE_KEY                103
214#define DH_F_GENERATE_PARAMETERS             104
215
216/* Reason codes. */
217#define DH_R_BAD_GENERATOR               101
218#define DH_R_NO_PRIVATE_VALUE                100
219
220#ifdef  __cplusplus
221}
222#endif
223#endif
Note: See TracBrowser for help on using the repository browser.