Current File : //usr/local/include/openssl/poly1305.h
/*
* Poly1305
*
* Created on: Jun, 2013
* Author: Elie Bursztein (elieb@google.com)
*
* Adapted from the estream code by D. Bernstein.
*/
/* ====================================================================
* Copyright (c) 2011-2013 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.
* ====================================================================
*/
#ifndef HEADER_POLY1305_H_
#define HEADER_POLY1305_H_
#if (_MSC_VER == 1500)
typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#else
#include <stdint.h>
#endif
#include <openssl/opensslconf.h>
#if defined(OPENSSL_NO_POLY1305)
#error Poly1305 support is disabled.
#endif
typedef unsigned char poly1305_state[512];
/* poly1305_init sets up |state| so that it can be used to calculate an
* authentication tag with the one-time key |key|. Note that |key| is a
* one-time key and therefore there is no `reset' method because that would
* enable several messages to be authenticated with the same key. */
extern void CRYPTO_poly1305_init(poly1305_state* state,
const unsigned char key[32]);
/* poly1305_update processes |in_len| bytes from |in|. It can be called zero or
* more times after poly1305_init. */
extern void CRYPTO_poly1305_update(poly1305_state* state,
const unsigned char *in,
size_t in_len);
/* poly1305_finish completes the poly1305 calculation and writes a 16 byte
* authentication tag to |mac|. */
extern void CRYPTO_poly1305_finish(poly1305_state* state,
unsigned char mac[16]);
#endif /* HEADER_POLY1305_H_ */
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