1681d79ddf
Removes a bit of unused code. This effectively reverts upstream's 25af7a5dbc05c7359d1d7f472d50d65a9d876b7e. It's new with OpenSSL 1.0.2 so nothing can be using it yet. We can restore it with tests if we end up wanting it later. (Also I think it might be misnamed. The KDF seems to be defined in X9.63, not X9.62.) Change-Id: I482daf681e0cf5c3bbdc72c57793f91448deaee8 Reviewed-on: https://boringssl-review.googlesource.com/2846 Reviewed-by: Adam Langley <agl@google.com>
104 lines
4.2 KiB
C
104 lines
4.2 KiB
C
/* ====================================================================
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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) 2000-2002 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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* licensing@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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#ifndef OPENSSL_HEADER_ECDH_H
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#define OPENSSL_HEADER_ECDH_H
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#include <openssl/base.h>
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#include <openssl/ec_key.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* Elliptic curve Diffie-Hellman. */
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/* ECDH_compute_key calculates the shared key between |pub_key| and |priv_key|.
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* If |KDF| is not NULL, then it is called with the bytes of the shared key and
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* the parameter |out|. When |KDF| returns, the value of |*outlen| becomes the
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* return value. Otherwise, as many bytes of the shared key as will fit are
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* copied directly to, at most, |outlen| bytes at |out|. It returns the number
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* of bytes written to |out|, or -1 on error. */
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OPENSSL_EXPORT int ECDH_compute_key(void *out, size_t outlen,
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const EC_POINT *pub_key, EC_KEY *priv_key,
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void *(*KDF)(const void *in, size_t inlen,
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void *out, size_t *outlen));
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#if defined(__cplusplus)
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} /* extern C */
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#endif
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#define ECDH_F_ECDH_compute_key 100
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#define ECDH_R_POINT_ARITHMETIC_FAILURE 100
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#define ECDH_R_KDF_FAILED 101
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#define ECDH_R_NO_PRIVATE_VALUE 102
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#endif /* OPENSSL_HEADER_ECDH_H */
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