1/* $OpenBSD: sshkey-xmss.h,v 1.4 2022/10/28 00:39:29 djm Exp $ */
2/*
3 * Copyright (c) 2017 Markus Friedl.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25#ifndef SSHKEY_XMSS_H
26#define SSHKEY_XMSS_H
27
28#define XMSS_SHA2_256_W16_H10_NAME	"XMSS_SHA2-256_W16_H10"
29#define XMSS_SHA2_256_W16_H16_NAME	"XMSS_SHA2-256_W16_H16"
30#define XMSS_SHA2_256_W16_H20_NAME	"XMSS_SHA2-256_W16_H20"
31#define XMSS_DEFAULT_NAME		XMSS_SHA2_256_W16_H10_NAME
32
33size_t	 sshkey_xmss_pklen(const struct sshkey *);
34size_t	 sshkey_xmss_sklen(const struct sshkey *);
35int	 sshkey_xmss_init(struct sshkey *, const char *);
36void	 sshkey_xmss_free_state(struct sshkey *);
37int	 sshkey_xmss_generate_private_key(struct sshkey *, int);
38int	 sshkey_xmss_serialize_state(const struct sshkey *, struct sshbuf *);
39int	 sshkey_xmss_serialize_state_opt(const struct sshkey *, struct sshbuf *,
40	    enum sshkey_serialize_rep);
41int	 sshkey_xmss_serialize_pk_info(const struct sshkey *, struct sshbuf *,
42	    enum sshkey_serialize_rep);
43int	 sshkey_xmss_deserialize_state(struct sshkey *, struct sshbuf *);
44int	 sshkey_xmss_deserialize_state_opt(struct sshkey *, struct sshbuf *);
45int	 sshkey_xmss_deserialize_pk_info(struct sshkey *, struct sshbuf *);
46
47int	 sshkey_xmss_siglen(const struct sshkey *, size_t *);
48void	*sshkey_xmss_params(const struct sshkey *);
49void	*sshkey_xmss_bds_state(const struct sshkey *);
50int	 sshkey_xmss_get_state(const struct sshkey *, int);
51int	 sshkey_xmss_enable_maxsign(struct sshkey *, u_int32_t);
52int	 sshkey_xmss_forward_state(const struct sshkey *, u_int32_t);
53int	 sshkey_xmss_update_state(const struct sshkey *, int);
54u_int32_t sshkey_xmss_signatures_left(const struct sshkey *);
55
56#endif /* SSHKEY_XMSS_H */
57