147 lines
4.6 KiB
C
147 lines
4.6 KiB
C
/* $OpenBSD: ech_lib.c,v 1.24 2023/07/07 13:54:45 beck Exp $ */
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/* ====================================================================
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* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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*
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* The Elliptic Curve Public-Key Crypto Library (ECC Code) included
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* herein is developed by SUN MICROSYSTEMS, INC., and is contributed
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* to the OpenSSL project.
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*
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* The ECC Code is licensed pursuant to the OpenSSL open source
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* license provided below.
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*
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* The ECDH software is originally written by Douglas Stebila of
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* Sun Microsystems Laboratories.
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*
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*/
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/* ====================================================================
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* Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <string.h>
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_ENGINE
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#include <openssl/engine.h>
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#endif
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#include <openssl/err.h>
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#include "ec_local.h"
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struct ecdh_method {
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const char *name;
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int (*compute_key)(void *key, size_t outlen, const EC_POINT *pub_key, EC_KEY *ecdh,
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void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen));
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int flags;
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char *app_data;
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};
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static const ECDH_METHOD *default_ECDH_method = NULL;
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static const ECDH_METHOD openssl_ecdh_meth = {
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.name = "OpenSSL ECDH method",
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.compute_key = ecdh_compute_key,
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};
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const ECDH_METHOD *
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ECDH_OpenSSL(void)
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{
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return &openssl_ecdh_meth;
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}
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LCRYPTO_ALIAS(ECDH_OpenSSL);
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void
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ECDH_set_default_method(const ECDH_METHOD *meth)
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{
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default_ECDH_method = meth;
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}
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LCRYPTO_ALIAS(ECDH_set_default_method);
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const ECDH_METHOD *
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ECDH_get_default_method(void)
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{
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if (!default_ECDH_method) {
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default_ECDH_method = ECDH_OpenSSL();
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}
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return default_ECDH_method;
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}
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LCRYPTO_ALIAS(ECDH_get_default_method);
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int
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ECDH_set_method(EC_KEY *eckey, const ECDH_METHOD *meth)
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{
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return 0;
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}
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LCRYPTO_ALIAS(ECDH_set_method);
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int
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ECDH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
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CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
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{
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return -1;
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}
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LCRYPTO_ALIAS(ECDH_get_ex_new_index);
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int
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ECDH_set_ex_data(EC_KEY *d, int idx, void *arg)
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{
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return 0;
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}
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LCRYPTO_ALIAS(ECDH_set_ex_data);
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void *
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ECDH_get_ex_data(EC_KEY *d, int idx)
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{
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return NULL;
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}
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LCRYPTO_ALIAS(ECDH_get_ex_data);
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