Line data    Source code

       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             : #include "ech_locl.h"
      71             : 
      72         737 : int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
      73             :                      EC_KEY *eckey,
      74             :                      void *(*KDF) (const void *in, size_t inlen, void *out,
      75             :                                    size_t *outlen))
      76             : {
      77         737 :     ECDH_DATA *ecdh = ecdh_check(eckey);
      78         737 :     if (ecdh == NULL)
      79             :         return 0;
      80         737 :     return ecdh->meth->compute_key(out, outlen, pub_key, eckey, KDF);
      81             : }