1 /* crypto/ecdh/ecdh.h */
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2 /* ====================================================================
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3 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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5 * The Elliptic Curve Public-Key Crypto Library (ECC Code) included
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6 * herein is developed by SUN MICROSYSTEMS, INC., and is contributed
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7 * to the OpenSSL project.
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9 * The ECC Code is licensed pursuant to the OpenSSL open source
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10 * license provided below.
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12 * The ECDH software is originally written by Douglas Stebila of
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13 * Sun Microsystems Laboratories.
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16 /* ====================================================================
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17 * Copyright (c) 2000-2002 The OpenSSL Project. All rights reserved.
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19 * Redistribution and use in source and binary forms, with or without
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20 * modification, are permitted provided that the following conditions
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23 * 1. Redistributions of source code must retain the above copyright
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24 * notice, this list of conditions and the following disclaimer.
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26 * 2. Redistributions in binary form must reproduce the above copyright
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27 * notice, this list of conditions and the following disclaimer in
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28 * the documentation and/or other materials provided with the
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31 * 3. All advertising materials mentioning features or use of this
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32 * software must display the following acknowledgment:
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33 * "This product includes software developed by the OpenSSL Project
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34 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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36 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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37 * endorse or promote products derived from this software without
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38 * prior written permission. For written permission, please contact
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39 * licensing@OpenSSL.org.
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41 * 5. Products derived from this software may not be called "OpenSSL"
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42 * nor may "OpenSSL" appear in their names without prior written
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43 * permission of the OpenSSL Project.
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45 * 6. Redistributions of any form whatsoever must retain the following
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47 * "This product includes software developed by the OpenSSL Project
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48 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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50 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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51 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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53 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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54 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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56 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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57 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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59 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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60 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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61 * OF THE POSSIBILITY OF SUCH DAMAGE.
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62 * ====================================================================
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64 * This product includes cryptographic software written by Eric Young
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65 * (eay@cryptsoft.com). This product includes software written by Tim
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66 * Hudson (tjh@cryptsoft.com).
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69 #ifndef HEADER_ECDH_H
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70 #define HEADER_ECDH_H
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72 #include <openssl/opensslconf.h>
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74 #ifdef OPENSSL_NO_ECDH
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75 #error ECDH is disabled.
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78 #include <openssl/ec.h>
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79 #include <openssl/ossl_typ.h>
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80 #ifndef OPENSSL_NO_DEPRECATED
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81 #include <openssl/bn.h>
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88 const ECDH_METHOD *ECDH_OpenSSL(void);
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90 void ECDH_set_default_method(const ECDH_METHOD *);
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91 const ECDH_METHOD *ECDH_get_default_method(void);
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92 int ECDH_set_method(EC_KEY *, const ECDH_METHOD *);
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94 int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key, EC_KEY *ecdh,
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95 void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen));
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97 int ECDH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new
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98 *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
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99 int ECDH_set_ex_data(EC_KEY *d, int idx, void *arg);
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100 void *ECDH_get_ex_data(EC_KEY *d, int idx);
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103 /* BEGIN ERROR CODES */
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104 /* The following lines are auto generated by the script mkerr.pl. Any changes
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105 * made after this point may be overwritten when the script is next run.
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107 void ERR_load_ECDH_strings(void);
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109 /* Error codes for the ECDH functions. */
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111 /* Function codes. */
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112 #define ECDH_F_ECDH_COMPUTE_KEY 100
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113 #define ECDH_F_ECDH_DATA_NEW_METHOD 101
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115 /* Reason codes. */
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116 #define ECDH_R_KDF_FAILED 102
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117 #define ECDH_R_NO_PRIVATE_VALUE 100
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118 #define ECDH_R_POINT_ARITHMETIC_FAILURE 101
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