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Diffstat (limited to 'src/include/openssl/ecdh.h')
| -rw-r--r-- | src/include/openssl/ecdh.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/include/openssl/ecdh.h b/src/include/openssl/ecdh.h new file mode 100644 index 0000000..46cf839 --- /dev/null +++ b/src/include/openssl/ecdh.h @@ -0,0 +1,103 @@ +/* ==================================================================== + * 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_POINT_ARITHMETIC_FAILURE 100 +#define ECDH_R_KDF_FAILED 101 +#define ECDH_R_NO_PRIVATE_VALUE 102 + +#endif /* OPENSSL_HEADER_ECDH_H */ |