/*

 * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the Apache License 2.0 (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

#include <stddef.h>

#define SIPHASH_BLOCK_SIZE        8

#define SIPHASH_KEY_SIZE         16

#define SIPHASH_MIN_DIGEST_SIZE   8

#define SIPHASH_MAX_DIGEST_SIZE  16

typedef struct siphash_st SIPHASH;

size_t SipHash_ctx_size(void);

size_t SipHash_hash_size(SIPHASH *ctx);

int SipHash_set_hash_size(SIPHASH *ctx, size_t hash_size);

int SipHash_Init(SIPHASH *ctx, const unsigned char *k,

                 int crounds, int drounds);

void SipHash_Update(SIPHASH *ctx, const unsigned char *in, size_t inlen);

int SipHash_Final(SIPHASH *ctx, unsigned char *out, size_t outlen);