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1 : : /* crypto/ecdh/ecdh_key.c */
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 : : *
12 : : * The ECDH software is originally written by Douglas Stebila of
13 : : * Sun Microsystems Laboratories.
14 : : *
15 : : */
16 : : /* ====================================================================
17 : : * Copyright (c) 1998-2003 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
24 : : * notice, this list of conditions and the following disclaimer.
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 : : * openssl-core@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 : :
70 : : #define OPENSSL_FIPSAPI
71 : :
72 : : #include "ech_locl.h"
73 : :
74 : 966 : int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
75 : : EC_KEY *eckey,
76 : : void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen))
77 : : {
78 : 966 : ECDH_DATA *ecdh = ecdh_check(eckey);
79 [ + - ]: 966 : if (ecdh == NULL)
80 : : return 0;
81 : 966 : return ecdh->meth->compute_key(out, outlen, pub_key, eckey, KDF);
82 : : }
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