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d02b48c6 | 1 | /* crypto/dh/dh.h */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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 | #ifdef __cplusplus | |
63 | extern "C" { | |
64 | #endif | |
65 | ||
f5d7a031 UM |
66 | #ifdef NO_DH |
67 | #error DH is disabled. | |
68 | #endif | |
69 | ||
ec577822 | 70 | #include <openssl/bn.h> |
2fb50a29 | 71 | |
dfeab068 RE |
72 | #define DH_FLAG_CACHE_MONT_P 0x01 |
73 | ||
d02b48c6 RE |
74 | typedef struct dh_st |
75 | { | |
76 | /* This first argument is used to pick up errors when | |
77 | * a DH is passed instead of a EVP_PKEY */ | |
78 | int pad; | |
79 | int version; | |
80 | BIGNUM *p; | |
81 | BIGNUM *g; | |
82 | int length; /* optional */ | |
83 | BIGNUM *pub_key; /* y */ | |
84 | BIGNUM *priv_key; /* x */ | |
dfeab068 RE |
85 | |
86 | int flags; | |
87 | char *method_mont_p; | |
d02b48c6 RE |
88 | } DH; |
89 | ||
90 | #define DH_GENERATOR_2 2 | |
91 | /* #define DH_GENERATOR_3 3 */ | |
92 | #define DH_GENERATOR_5 5 | |
93 | ||
94 | /* DH_check error codes */ | |
95 | #define DH_CHECK_P_NOT_PRIME 0x01 | |
96 | #define DH_CHECK_P_NOT_STRONG_PRIME 0x02 | |
97 | #define DH_UNABLE_TO_CHECK_GENERATOR 0x04 | |
98 | #define DH_NOT_SUITABLE_GENERATOR 0x08 | |
99 | ||
100 | #define DHparams_dup(x) (DH *)ASN1_dup((int (*)())i2d_DHparams, \ | |
101 | (char *(*)())d2i_DHparams,(char *)(x)) | |
102 | #define d2i_DHparams_fp(fp,x) (DH *)ASN1_d2i_fp((char *(*)())DH_new, \ | |
103 | (char *(*)())d2i_DHparams,(fp),(unsigned char **)(x)) | |
104 | #define i2d_DHparams_fp(fp,x) ASN1_i2d_fp(i2d_DHparams,(fp), \ | |
105 | (unsigned char *)(x)) | |
106 | #define d2i_DHparams_bio(bp,x) (DH *)ASN1_d2i_bio((char *(*)())DH_new, \ | |
107 | (char *(*)())d2i_DHparams,(bp),(unsigned char **)(x)) | |
72fbe87d BL |
108 | #ifdef __cplusplus |
109 | #define i2d_DHparams_bio(bp,x) ASN1_i2d_bio((int (*)())i2d_DHparams,(bp), \ | |
110 | (unsigned char *)(x)) | |
111 | #else | |
d02b48c6 RE |
112 | #define i2d_DHparams_bio(bp,x) ASN1_i2d_bio(i2d_DHparams,(bp), \ |
113 | (unsigned char *)(x)) | |
72fbe87d | 114 | #endif |
d02b48c6 | 115 | |
d02b48c6 RE |
116 | DH * DH_new(void); |
117 | void DH_free(DH *dh); | |
118 | int DH_size(DH *dh); | |
119 | DH * DH_generate_parameters(int prime_len,int generator, | |
b4f76582 | 120 | void (*callback)(int,int,void *),void *cb_arg); |
d02b48c6 RE |
121 | int DH_check(DH *dh,int *codes); |
122 | int DH_generate_key(DH *dh); | |
123 | int DH_compute_key(unsigned char *key,BIGNUM *pub_key,DH *dh); | |
124 | DH * d2i_DHparams(DH **a,unsigned char **pp, long length); | |
125 | int i2d_DHparams(DH *a,unsigned char **pp); | |
58964a49 | 126 | #ifndef NO_FP_API |
d02b48c6 RE |
127 | int DHparams_print_fp(FILE *fp, DH *x); |
128 | #endif | |
129 | #ifdef HEADER_BIO_H | |
130 | int DHparams_print(BIO *bp, DH *x); | |
131 | #else | |
132 | int DHparams_print(char *bp, DH *x); | |
133 | #endif | |
134 | void ERR_load_DH_strings(void ); | |
135 | ||
d02b48c6 | 136 | /* BEGIN ERROR CODES */ |
6d311938 DSH |
137 | /* The following lines are auto generated by the script mkerr.pl. Any changes |
138 | * made after this point may be overwritten when the script is next run. | |
139 | */ | |
140 | ||
d02b48c6 RE |
141 | /* Error codes for the DH functions. */ |
142 | ||
143 | /* Function codes. */ | |
144 | #define DH_F_DHPARAMS_PRINT 100 | |
145 | #define DH_F_DHPARAMS_PRINT_FP 101 | |
146 | #define DH_F_DH_COMPUTE_KEY 102 | |
147 | #define DH_F_DH_GENERATE_KEY 103 | |
148 | #define DH_F_DH_GENERATE_PARAMETERS 104 | |
149 | #define DH_F_DH_NEW 105 | |
150 | ||
151 | /* Reason codes. */ | |
152 | #define DH_R_NO_PRIVATE_VALUE 100 | |
6d311938 | 153 | |
d02b48c6 RE |
154 | #ifdef __cplusplus |
155 | } | |
156 | #endif | |
157 | #endif | |
158 |