openssl/include/crypto/siphash.h
Matt Caswell 5db682733d Fix a TODO(3.0) in the siphash code
All 3 files that included crypto/siphash.h also included siphash_local.h,
and no other files included siphash_local.h independently. They probably
should be just one header file.

Fixes #14360

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14558)
2021-03-17 10:16:21 +10:00

51 lines
1.4 KiB
C

/*
* Copyright 2017-2021 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
*/
#ifndef OSSL_CRYPTO_SIPHASH_H
# define OSSL_CRYPTO_SIPHASH_H
# pragma once
# 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);
/* Based on https://131002.net/siphash C reference implementation */
struct siphash_st {
uint64_t total_inlen;
uint64_t v0;
uint64_t v1;
uint64_t v2;
uint64_t v3;
unsigned int len;
unsigned int hash_size;
unsigned int crounds;
unsigned int drounds;
unsigned char leavings[SIPHASH_BLOCK_SIZE];
};
/* default: SipHash-2-4 */
# define SIPHASH_C_ROUNDS 2
# define SIPHASH_D_ROUNDS 4
#endif