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1 | /* crypto/ecdh/ecdh.h */ |
2 | /* ==================================================================== | |
3 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
4 | * | |
5 | * The Elliptic Curve Public-Key Crypto Library (ECC Code) included | |
6 | * herein is developed by SUN MICROSYSTEMS, INC., and is contributed | |
7 | * to the OpenSSL project. | |
8 | * | |
9 | * The ECC Code is licensed pursuant to the OpenSSL open source | |
10 | * license provided below. | |
11 | * | |
e172d60d BM |
12 | * The ECDH software is originally written by Douglas Stebila of |
13 | * Sun Microsystems Laboratories. | |
14 | * | |
15 | */ | |
16 | /* ==================================================================== | |
17 | * Copyright (c) 2000-2002 The OpenSSL Project. All rights reserved. | |
18 | * | |
19 | * Redistribution and use in source and binary forms, with or without | |
20 | * modification, are permitted provided that the following conditions | |
21 | * are met: | |
22 | * | |
23 | * 1. Redistributions of source code must retain the above copyright | |
0f113f3e | 24 | * notice, this list of conditions and the following disclaimer. |
e172d60d BM |
25 | * |
26 | * 2. Redistributions in binary form must reproduce the above copyright | |
27 | * notice, this list of conditions and the following disclaimer in | |
28 | * the documentation and/or other materials provided with the | |
29 | * distribution. | |
30 | * | |
31 | * 3. All advertising materials mentioning features or use of this | |
32 | * software must display the following acknowledgment: | |
33 | * "This product includes software developed by the OpenSSL Project | |
34 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
35 | * | |
36 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
37 | * endorse or promote products derived from this software without | |
38 | * prior written permission. For written permission, please contact | |
39 | * licensing@OpenSSL.org. | |
40 | * | |
41 | * 5. Products derived from this software may not be called "OpenSSL" | |
42 | * nor may "OpenSSL" appear in their names without prior written | |
43 | * permission of the OpenSSL Project. | |
44 | * | |
45 | * 6. Redistributions of any form whatsoever must retain the following | |
46 | * acknowledgment: | |
47 | * "This product includes software developed by the OpenSSL Project | |
48 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
49 | * | |
50 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
51 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
52 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
53 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
54 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
56 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
57 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
58 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
59 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
60 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
61 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
62 | * ==================================================================== | |
63 | * | |
64 | * This product includes cryptographic software written by Eric Young | |
65 | * (eay@cryptsoft.com). This product includes software written by Tim | |
66 | * Hudson (tjh@cryptsoft.com). | |
67 | * | |
68 | */ | |
69 | #ifndef HEADER_ECDH_H | |
0f113f3e | 70 | # define HEADER_ECDH_H |
e172d60d | 71 | |
0f113f3e | 72 | # include <openssl/opensslconf.h> |
03829b2b | 73 | |
0f113f3e MC |
74 | # ifdef OPENSSL_NO_ECDH |
75 | # error ECDH is disabled. | |
76 | # endif | |
e172d60d | 77 | |
0f113f3e MC |
78 | # include <openssl/ec.h> |
79 | # include <openssl/ossl_typ.h> | |
80 | # ifdef OPENSSL_USE_DEPRECATED | |
81 | # include <openssl/bn.h> | |
82 | # endif | |
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83 | |
84 | #ifdef __cplusplus | |
85 | extern "C" { | |
86 | #endif | |
87 | ||
0f113f3e | 88 | # define EC_FLAG_COFACTOR_ECDH 0x1000 |
a3a2e3a4 | 89 | |
e172d60d BM |
90 | const ECDH_METHOD *ECDH_OpenSSL(void); |
91 | ||
0f113f3e | 92 | void ECDH_set_default_method(const ECDH_METHOD *); |
e172d60d | 93 | const ECDH_METHOD *ECDH_get_default_method(void); |
0f113f3e | 94 | int ECDH_set_method(EC_KEY *, const ECDH_METHOD *); |
e172d60d | 95 | |
0f113f3e MC |
96 | int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key, |
97 | EC_KEY *ecdh, void *(*KDF) (const void *in, size_t inlen, | |
98 | void *out, size_t *outlen)); | |
e172d60d | 99 | |
0f113f3e MC |
100 | int ECDH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new |
101 | *new_func, CRYPTO_EX_dup *dup_func, | |
102 | CRYPTO_EX_free *free_func); | |
103 | int ECDH_set_ex_data(EC_KEY *d, int idx, void *arg); | |
104 | void *ECDH_get_ex_data(EC_KEY *d, int idx); | |
25af7a5d | 105 | |
0f113f3e MC |
106 | int ECDH_KDF_X9_62(unsigned char *out, size_t outlen, |
107 | const unsigned char *Z, size_t Zlen, | |
108 | const unsigned char *sinfo, size_t sinfolen, | |
109 | const EVP_MD *md); | |
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110 | |
111 | /* BEGIN ERROR CODES */ | |
0f113f3e MC |
112 | /* |
113 | * The following lines are auto generated by the script mkerr.pl. Any changes | |
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114 | * made after this point may be overwritten when the script is next run. |
115 | */ | |
116 | void ERR_load_ECDH_strings(void); | |
117 | ||
118 | /* Error codes for the ECDH functions. */ | |
119 | ||
120 | /* Function codes. */ | |
0f113f3e MC |
121 | # define ECDH_F_ECDH_COMPUTE_KEY 100 |
122 | # define ECDH_F_ECDH_DATA_NEW_METHOD 101 | |
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123 | |
124 | /* Reason codes. */ | |
0f113f3e MC |
125 | # define ECDH_R_KDF_FAILED 102 |
126 | # define ECDH_R_NO_PRIVATE_VALUE 100 | |
127 | # define ECDH_R_POINT_ARITHMETIC_FAILURE 101 | |
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128 | |
129 | #ifdef __cplusplus | |
130 | } | |
131 | #endif | |
132 | #endif |