1235783Skib/* crypto/ecdh/ecdh_key.c */ 2235783Skib/* ==================================================================== 3235783Skib * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 4235783Skib * 5235783Skib * The Elliptic Curve Public-Key Crypto Library (ECC Code) included 6235783Skib * herein is developed by SUN MICROSYSTEMS, INC., and is contributed 7235783Skib * to the OpenSSL project. 8235783Skib * 9235783Skib * The ECC Code is licensed pursuant to the OpenSSL open source 10235783Skib * license provided below. 11235783Skib * 12235783Skib * The ECDH software is originally written by Douglas Stebila of 13235783Skib * Sun Microsystems Laboratories. 14235783Skib * 15235783Skib */ 16235783Skib/* ==================================================================== 17235783Skib * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved. 18235783Skib * 19235783Skib * Redistribution and use in source and binary forms, with or without 20235783Skib * modification, are permitted provided that the following conditions 21235783Skib * are met: 22235783Skib * 23235783Skib * 1. Redistributions of source code must retain the above copyright 24235783Skib * notice, this list of conditions and the following disclaimer. 25235783Skib * 26235783Skib * 2. Redistributions in binary form must reproduce the above copyright 27235783Skib * notice, this list of conditions and the following disclaimer in 28235783Skib * the documentation and/or other materials provided with the 29235783Skib * distribution. 30235783Skib * 31235783Skib * 3. All advertising materials mentioning features or use of this 32235783Skib * software must display the following acknowledgment: 33235783Skib * "This product includes software developed by the OpenSSL Project 34235783Skib * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 35235783Skib * 36235783Skib * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 37235783Skib * endorse or promote products derived from this software without 38235783Skib * prior written permission. For written permission, please contact 39235783Skib * openssl-core@OpenSSL.org. 40235783Skib * 41235783Skib * 5. Products derived from this software may not be called "OpenSSL" 42235783Skib * nor may "OpenSSL" appear in their names without prior written 43235783Skib * permission of the OpenSSL Project. 44235783Skib * 45235783Skib * 6. Redistributions of any form whatsoever must retain the following 46235783Skib * acknowledgment: 47235783Skib * "This product includes software developed by the OpenSSL Project 48235783Skib * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 49235783Skib * 50235783Skib * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 51235783Skib * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52235783Skib * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 53235783Skib * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 54235783Skib * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 55235783Skib * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 56235783Skib * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 57235783Skib * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58235783Skib * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 59235783Skib * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 60235783Skib * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 61235783Skib * OF THE POSSIBILITY OF SUCH DAMAGE. 62235783Skib * ==================================================================== 63235783Skib * 64235783Skib * This product includes cryptographic software written by Eric Young 65235783Skib * (eay@cryptsoft.com). This product includes software written by Tim 66235783Skib * Hudson (tjh@cryptsoft.com). 67235783Skib * 68235783Skib */ 69235783Skib 70235783Skib#include "ech_locl.h" 71235783Skib 72235783Skibint ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key, 73235783Skib EC_KEY *eckey, 74235783Skib void *(*KDF) (const void *in, size_t inlen, void *out, 75235783Skib size_t *outlen)) 76235783Skib{ 77235783Skib ECDH_DATA *ecdh = ecdh_check(eckey); 78235783Skib if (ecdh == NULL) 79235783Skib return 0; 80235783Skib return ecdh->meth->compute_key(out, outlen, pub_key, eckey, KDF); 81235783Skib} 82235783Skib