source: lab.git/Dev/utvpn/utvpn-unix-v101-7101-public/src/Mayaqua/openssl/dsa.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

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File size: 10.3 KB
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1/* crypto/dsa/dsa.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/*
60 * The DSS routines are based on patches supplied by
61 * Steven Schoch <schoch@sheba.arc.nasa.gov>.  He basically did the
62 * work and I have just tweaked them a little to fit into my
63 * stylistic vision for SSLeay :-) */
64
65#ifndef HEADER_DSA_H
66#define HEADER_DSA_H
67
68#include <openssl/e_os2.h>
69
70#ifdef OPENSSL_NO_DSA
71#error DSA is disabled.
72#endif
73
74#ifndef OPENSSL_NO_BIO
75#include <openssl/bio.h>
76#endif
77#include <openssl/crypto.h>
78#include <openssl/ossl_typ.h>
79
80#ifndef OPENSSL_NO_DEPRECATED
81#include <openssl/bn.h>
82#ifndef OPENSSL_NO_DH
83# include <openssl/dh.h>
84#endif
85#endif
86
87#define DSA_FLAG_CACHE_MONT_P   0x01
88#define DSA_FLAG_NO_EXP_CONSTTIME       0x02 /* new with 0.9.7h; the built-in DSA
89                                              * implementation now uses constant time
90                                              * modular exponentiation for secret exponents
91                                              * by default. This flag causes the
92                                              * faster variable sliding window method to
93                                              * be used for all exponents.
94                                              */
95
96#ifdef  __cplusplus
97extern "C" {
98#endif
99
100/* Already defined in ossl_typ.h */
101/* typedef struct dsa_st DSA; */
102/* typedef struct dsa_method DSA_METHOD; */
103
104typedef struct DSA_SIG_st
105    {
106    BIGNUM *r;
107    BIGNUM *s;
108    } DSA_SIG;
109
110struct dsa_method
111    {
112    const char *name;
113    DSA_SIG * (*dsa_do_sign)(const unsigned char *dgst, int dlen, DSA *dsa);
114    int (*dsa_sign_setup)(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp,
115                                BIGNUM **rp);
116    int (*dsa_do_verify)(const unsigned char *dgst, int dgst_len,
117                            DSA_SIG *sig, DSA *dsa);
118    int (*dsa_mod_exp)(DSA *dsa, BIGNUM *rr, BIGNUM *a1, BIGNUM *p1,
119            BIGNUM *a2, BIGNUM *p2, BIGNUM *m, BN_CTX *ctx,
120            BN_MONT_CTX *in_mont);
121    int (*bn_mod_exp)(DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p,
122                const BIGNUM *m, BN_CTX *ctx,
123                BN_MONT_CTX *m_ctx); /* Can be null */
124    int (*init)(DSA *dsa);
125    int (*finish)(DSA *dsa);
126    int flags;
127    char *app_data;
128    /* If this is non-NULL, it is used to generate DSA parameters */
129    int (*dsa_paramgen)(DSA *dsa, int bits,
130            unsigned char *seed, int seed_len,
131            int *counter_ret, unsigned long *h_ret,
132            BN_GENCB *cb);
133    /* If this is non-NULL, it is used to generate DSA keys */
134    int (*dsa_keygen)(DSA *dsa);
135    };
136
137struct dsa_st
138    {
139    /* This first variable is used to pick up errors where
140     * a DSA is passed instead of of a EVP_PKEY */
141    int pad;
142    long version;
143    int write_params;
144    BIGNUM *p;
145    BIGNUM *q;  /* == 20 */
146    BIGNUM *g;
147
148    BIGNUM *pub_key;  /* y public key */
149    BIGNUM *priv_key; /* x private key */
150
151    BIGNUM *kinv;   /* Signing pre-calc */
152    BIGNUM *r;  /* Signing pre-calc */
153
154    int flags;
155    /* Normally used to cache montgomery values */
156    BN_MONT_CTX *method_mont_p;
157    int references;
158    CRYPTO_EX_DATA ex_data;
159    const DSA_METHOD *meth;
160    /* functional reference if 'meth' is ENGINE-provided */
161    ENGINE *engine;
162    };
163
164#define DSAparams_dup(x) ASN1_dup_of_const(DSA,i2d_DSAparams,d2i_DSAparams,x)
165#define d2i_DSAparams_fp(fp,x) (DSA *)ASN1_d2i_fp((char *(*)())DSA_new, \
166        (char *(*)())d2i_DSAparams,(fp),(unsigned char **)(x))
167#define i2d_DSAparams_fp(fp,x) ASN1_i2d_fp(i2d_DSAparams,(fp), \
168        (unsigned char *)(x))
169#define d2i_DSAparams_bio(bp,x) ASN1_d2i_bio_of(DSA,DSA_new,d2i_DSAparams,bp,x)
170#define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio_of_const(DSA,i2d_DSAparams,bp,x)
171
172
173DSA_SIG * DSA_SIG_new(void);
174void    DSA_SIG_free(DSA_SIG *a);
175int i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp);
176DSA_SIG * d2i_DSA_SIG(DSA_SIG **v, const unsigned char **pp, long length);
177
178DSA_SIG * DSA_do_sign(const unsigned char *dgst,int dlen,DSA *dsa);
179int DSA_do_verify(const unsigned char *dgst,int dgst_len,
180              DSA_SIG *sig,DSA *dsa);
181
182const DSA_METHOD *DSA_OpenSSL(void);
183
184void    DSA_set_default_method(const DSA_METHOD *);
185const DSA_METHOD *DSA_get_default_method(void);
186int DSA_set_method(DSA *dsa, const DSA_METHOD *);
187
188DSA *   DSA_new(void);
189DSA *   DSA_new_method(ENGINE *engine);
190void    DSA_free (DSA *r);
191/* "up" the DSA object's reference count */
192int DSA_up_ref(DSA *r);
193int DSA_size(const DSA *);
194    /* next 4 return -1 on error */
195int DSA_sign_setup( DSA *dsa,BN_CTX *ctx_in,BIGNUM **kinvp,BIGNUM **rp);
196int DSA_sign(int type,const unsigned char *dgst,int dlen,
197        unsigned char *sig, unsigned int *siglen, DSA *dsa);
198int DSA_verify(int type,const unsigned char *dgst,int dgst_len,
199        const unsigned char *sigbuf, int siglen, DSA *dsa);
200int DSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
201         CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
202int DSA_set_ex_data(DSA *d, int idx, void *arg);
203void *DSA_get_ex_data(DSA *d, int idx);
204
205DSA *   d2i_DSAPublicKey(DSA **a, const unsigned char **pp, long length);
206DSA *   d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length);
207DSA *   d2i_DSAparams(DSA **a, const unsigned char **pp, long length);
208
209/* Deprecated version */
210#ifndef OPENSSL_NO_DEPRECATED
211DSA *   DSA_generate_parameters(int bits,
212        unsigned char *seed,int seed_len,
213        int *counter_ret, unsigned long *h_ret,void
214        (*callback)(int, int, void *),void *cb_arg);
215#endif /* !defined(OPENSSL_NO_DEPRECATED) */
216
217/* New version */
218int DSA_generate_parameters_ex(DSA *dsa, int bits,
219        unsigned char *seed,int seed_len,
220        int *counter_ret, unsigned long *h_ret, BN_GENCB *cb);
221
222int DSA_generate_key(DSA *a);
223int i2d_DSAPublicKey(const DSA *a, unsigned char **pp);
224int     i2d_DSAPrivateKey(const DSA *a, unsigned char **pp);
225int i2d_DSAparams(const DSA *a,unsigned char **pp);
226
227#ifndef OPENSSL_NO_BIO
228int DSAparams_print(BIO *bp, const DSA *x);
229int DSA_print(BIO *bp, const DSA *x, int off);
230#endif
231#ifndef OPENSSL_NO_FP_API
232int DSAparams_print_fp(FILE *fp, const DSA *x);
233int DSA_print_fp(FILE *bp, const DSA *x, int off);
234#endif
235
236#define DSS_prime_checks 50
237/* Primality test according to FIPS PUB 186[-1], Appendix 2.1:
238 * 50 rounds of Rabin-Miller */
239#define DSA_is_prime(n, callback, cb_arg) \
240    BN_is_prime(n, DSS_prime_checks, callback, NULL, cb_arg)
241
242#ifndef OPENSSL_NO_DH
243/* Convert DSA structure (key or just parameters) into DH structure
244 * (be careful to avoid small subgroup attacks when using this!) */
245DH *DSA_dup_DH(const DSA *r);
246#endif
247
248/* BEGIN ERROR CODES */
249/* The following lines are auto generated by the script mkerr.pl. Any changes
250 * made after this point may be overwritten when the script is next run.
251 */
252void ERR_load_DSA_strings(void);
253
254/* Error codes for the DSA functions. */
255
256/* Function codes. */
257#define DSA_F_D2I_DSA_SIG                110
258#define DSA_F_DSAPARAMS_PRINT                100
259#define DSA_F_DSAPARAMS_PRINT_FP             101
260#define DSA_F_DSA_DO_SIGN                112
261#define DSA_F_DSA_DO_VERIFY              113
262#define DSA_F_DSA_NEW_METHOD                 103
263#define DSA_F_DSA_PRINT                  104
264#define DSA_F_DSA_PRINT_FP               105
265#define DSA_F_DSA_SIGN                   106
266#define DSA_F_DSA_SIGN_SETUP                 107
267#define DSA_F_DSA_SIG_NEW                109
268#define DSA_F_DSA_VERIFY                 108
269#define DSA_F_I2D_DSA_SIG                111
270#define DSA_F_SIG_CB                     114
271
272/* Reason codes. */
273#define DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE        100
274#define DSA_R_MISSING_PARAMETERS             101
275
276#ifdef  __cplusplus
277}
278#endif
279#endif
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