apr_siphash.h

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/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
   SipHash reference C implementation
   Copyright (c) 2012-2014 Jean-Philippe Aumasson
   <jeanphilippe.aumasson@gmail.com>
   Copyright (c) 2012-2014 Daniel J. Bernstein <djb@cr.yp.to>
   To the extent possible under law, the author(s) have dedicated all copyright
   and related and neighboring rights to this software to the public domain
   worldwide. This software is distributed without any warranty.
   You should have received a copy of the CC0 Public Domain Dedication along
   with this software. If not, see
   <http://creativecommons.org/publicdomain/zero/1.0/>.
 */

#ifndef APR_SIPHASH_H
#define APR_SIPHASH_H

#include "apr.h"

#ifdef __cplusplus
extern "C" {
#endif

#define APR_SIPHASH_DSIZE 8

#define APR_SIPHASH_KSIZE 16


APR_DECLARE(apr_uint64_t) apr_siphash(const void *src, apr_size_t len,
                              const unsigned char key[APR_SIPHASH_KSIZE],
                                      unsigned int c, unsigned int d);

APR_DECLARE(void) apr_siphash_auth(unsigned char out[APR_SIPHASH_DSIZE],
                                   const void *src, apr_size_t len,
                             const unsigned char key[APR_SIPHASH_KSIZE],
                                   unsigned int c, unsigned int d);

APR_DECLARE(apr_uint64_t) apr_siphash24(const void *src, apr_size_t len,
                               const unsigned char key[APR_SIPHASH_KSIZE]);

APR_DECLARE(void) apr_siphash24_auth(unsigned char out[APR_SIPHASH_DSIZE],
                                     const void *src, apr_size_t len,
                               const unsigned char key[APR_SIPHASH_KSIZE]);

APR_DECLARE(apr_uint64_t) apr_siphash48(const void *src, apr_size_t len,
                               const unsigned char key[APR_SIPHASH_KSIZE]);

APR_DECLARE(void) apr_siphash48_auth(unsigned char out[APR_SIPHASH_DSIZE],
                                     const void *src, apr_size_t len,
                               const unsigned char key[APR_SIPHASH_KSIZE]);

#ifdef __cplusplus
}
#endif

#endif  /* APR_SIPHASH_H */