689be0f4b7
This saves about 6-7k of error data. Change-Id: Ic28593d4a1f5454f00fb2399d281c351ee57fb14 Reviewed-on: https://boringssl-review.googlesource.com/3385 Reviewed-by: Adam Langley <agl@google.com>
104 lines
4.2 KiB
C
104 lines
4.2 KiB
C
/* ====================================================================
|
|
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
|
|
*
|
|
* The Elliptic Curve Public-Key Crypto Library (ECC Code) included
|
|
* herein is developed by SUN MICROSYSTEMS, INC., and is contributed
|
|
* to the OpenSSL project.
|
|
*
|
|
* The ECC Code is licensed pursuant to the OpenSSL open source
|
|
* license provided below.
|
|
*
|
|
* The ECDH software is originally written by Douglas Stebila of
|
|
* Sun Microsystems Laboratories.
|
|
*
|
|
*/
|
|
/* ====================================================================
|
|
* Copyright (c) 2000-2002 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* licensing@OpenSSL.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
|
* nor may "OpenSSL" appear in their names without prior written
|
|
* permission of the OpenSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* ====================================================================
|
|
*
|
|
* This product includes cryptographic software written by Eric Young
|
|
* (eay@cryptsoft.com). This product includes software written by Tim
|
|
* Hudson (tjh@cryptsoft.com). */
|
|
|
|
#ifndef OPENSSL_HEADER_ECDH_H
|
|
#define OPENSSL_HEADER_ECDH_H
|
|
|
|
#include <openssl/base.h>
|
|
|
|
#include <openssl/ec_key.h>
|
|
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/* Elliptic curve Diffie-Hellman. */
|
|
|
|
|
|
/* ECDH_compute_key calculates the shared key between |pub_key| and |priv_key|.
|
|
* If |KDF| is not NULL, then it is called with the bytes of the shared key and
|
|
* the parameter |out|. When |KDF| returns, the value of |*outlen| becomes the
|
|
* return value. Otherwise, as many bytes of the shared key as will fit are
|
|
* copied directly to, at most, |outlen| bytes at |out|. It returns the number
|
|
* of bytes written to |out|, or -1 on error. */
|
|
OPENSSL_EXPORT int ECDH_compute_key(void *out, size_t outlen,
|
|
const EC_POINT *pub_key, EC_KEY *priv_key,
|
|
void *(*KDF)(const void *in, size_t inlen,
|
|
void *out, size_t *outlen));
|
|
|
|
|
|
#if defined(__cplusplus)
|
|
} /* extern C */
|
|
#endif
|
|
|
|
#define ECDH_F_ECDH_compute_key 100
|
|
#define ECDH_R_KDF_FAILED 100
|
|
#define ECDH_R_NO_PRIVATE_VALUE 101
|
|
#define ECDH_R_POINT_ARITHMETIC_FAILURE 102
|
|
|
|
#endif /* OPENSSL_HEADER_ECDH_H */
|