1/*
2 * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License").  You may not use
5 * this file except in compliance with the License.  You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <stddef.h>
11
12#define SIPHASH_BLOCK_SIZE        8
13#define SIPHASH_KEY_SIZE         16
14#define SIPHASH_MIN_DIGEST_SIZE   8
15#define SIPHASH_MAX_DIGEST_SIZE  16
16
17typedef struct siphash_st SIPHASH;
18
19size_t SipHash_ctx_size(void);
20size_t SipHash_hash_size(SIPHASH *ctx);
21int SipHash_set_hash_size(SIPHASH *ctx, size_t hash_size);
22int SipHash_Init(SIPHASH *ctx, const unsigned char *k,
23                 int crounds, int drounds);
24void SipHash_Update(SIPHASH *ctx, const unsigned char *in, size_t inlen);
25int SipHash_Final(SIPHASH *ctx, unsigned char *out, size_t outlen);
26