151 lines
5 KiB
C
151 lines
5 KiB
C
/* crypto/ecdh/ecdh.h */
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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) 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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*
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*/
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#ifndef HEADER_ECDH_H
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#define HEADER_ECDH_H
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#ifdef OPENSSL_NO_ECDH
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#error ECDH is disabled.
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#endif
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#include <openssl/bn.h>
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#include <openssl/ec.h>
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#include <openssl/ossl_typ.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct ecdh_method
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{
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const char *name;
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int (*compute_key)(unsigned char *key,const EC_POINT *pub_key, EC_KEY *ecdh);
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#if 0
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int (*init)(EC_KEY *eckey);
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int (*finish)(EC_KEY *eckey);
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#endif
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int flags;
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char *app_data;
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} ECDH_METHOD;
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typedef struct ecdh_data_st {
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/* EC_KEY_METH_DATA part */
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int (*init)(EC_KEY *);
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void (*finish)(EC_KEY *);
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/* method specific part */
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ENGINE *engine;
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int flags;
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const ECDH_METHOD *meth;
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CRYPTO_EX_DATA ex_data;
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} ECDH_DATA;
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/* ECDH_DATA functions */
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ECDH_DATA *ECDH_DATA_new(void);
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ECDH_DATA *ECDH_DATA_new_method(ENGINE *);
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void ECDH_DATA_free(ECDH_DATA *);
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ECDH_DATA *ecdh_check(EC_KEY *);
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const ECDH_METHOD *ECDH_OpenSSL(void);
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void ECDH_set_default_method(const ECDH_METHOD *);
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const ECDH_METHOD *ECDH_get_default_method(void);
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int ECDH_set_method(EC_KEY *, const ECDH_METHOD *);
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int ECDH_size(const EC_KEY *);
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int ECDH_compute_key(unsigned char *key,const EC_POINT *pub_key, EC_KEY *ecdh);
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int ECDH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new
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*new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
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int ECDH_set_ex_data(EC_KEY *d, int idx, void *arg);
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void *ECDH_get_ex_data(EC_KEY *d, int idx);
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/* BEGIN ERROR CODES */
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/* The following lines are auto generated by the script mkerr.pl. Any changes
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* made after this point may be overwritten when the script is next run.
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*/
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void ERR_load_ECDH_strings(void);
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/* Error codes for the ECDH functions. */
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/* Function codes. */
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#define ECDH_F_ECDH_COMPUTE_KEY 100
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#define ECDH_F_ECDH_DATA_NEW 101
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/* Reason codes. */
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#define ECDH_R_NO_PRIVATE_VALUE 100
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#define ECDH_R_POINT_ARITHMETIC_FAILURE 101
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#define ECDH_R_SHA1_DIGEST_FAILED 102
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#ifdef __cplusplus
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}
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#endif
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#endif
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