OpenVPN
siphash_openssl.h
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1/*
2 * OpenVPN -- An application to securely tunnel IP networks
3 * over a single TCP/UDP port, with support for SSL/TLS-based
4 * session authentication and key exchange,
5 * packet encryption, packet authentication, and
6 * packet compression.
7 *
8 * Copyright (C) 2002-2026 OpenVPN Inc <sales@openvpn.net>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2
12 * as published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, see <https://www.gnu.org/licenses/>.
21 */
22#ifndef SIPHASH_OPENSSL_H
23#define SIPHASH_OPENSSL_H
24
25#include <stdint.h>
26#include <stdio.h>
27#include <stdbool.h>
28
29
30/* Prototypes for an implementation of SIPHASH in a crypto library */
36void *
37siphash_openssl_init(size_t hash_size);
38
39
43int
44siphash_openssl(void *sip_context, const void *in, size_t inlen,
45 const void *k, uint8_t *out, size_t outlen);
46
51void
52siphash_openssl_uninit(void *sip_context);
53
62bool
63siphash_openssl_available(void *sip_context);
64#endif /* ifndef SIPHASH_OPENSSL_H */
int siphash_openssl(void *sip_context, const void *in, size_t inlen, const void *k, uint8_t *out, size_t outlen)
Calculates SIPHASH using the crypto library function.
bool siphash_openssl_available(void *sip_context)
Returns if the crypto library is available (and should be used)
void * siphash_openssl_init(size_t hash_size)
void siphash_openssl_uninit(void *sip_context)
Free the siphash context used for the crypto library.