diff options
Diffstat (limited to 'include/crypto/siphash.h')
| -rw-r--r-- | include/crypto/siphash.h | 39 |
1 files changed, 32 insertions, 7 deletions
diff --git a/include/crypto/siphash.h b/include/crypto/siphash.h index 9573680f0f15..0d0767fcf481 100644 --- a/include/crypto/siphash.h +++ b/include/crypto/siphash.h @@ -1,18 +1,22 @@ /* - * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved. * - * Licensed under the OpenSSL license (the "License"). You may not use + * 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> +#ifndef OSSL_CRYPTO_SIPHASH_H +# define OSSL_CRYPTO_SIPHASH_H +# pragma once -#define SIPHASH_BLOCK_SIZE 8 -#define SIPHASH_KEY_SIZE 16 -#define SIPHASH_MIN_DIGEST_SIZE 8 -#define SIPHASH_MAX_DIGEST_SIZE 16 +# 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; @@ -23,3 +27,24 @@ 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 |