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[dragonfly.git] / crypto / openssh-5 / dh.h
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1 /* $OpenBSD: dh.h,v 1.9 2006/03/25 22:22:43 djm Exp $ */
3 /*
4 * Copyright (c) 2000 Niels Provos. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 #ifndef DH_H
27 #define DH_H
29 struct dhgroup {
30 int size;
31 BIGNUM *g;
32 BIGNUM *p;
35 DH *choose_dh(int, int, int);
36 DH *dh_new_group_asc(const char *, const char *);
37 DH *dh_new_group(BIGNUM *, BIGNUM *);
38 DH *dh_new_group1(void);
39 DH *dh_new_group14(void);
41 void dh_gen_key(DH *, int);
42 int dh_pub_is_valid(DH *, BIGNUM *);
44 int dh_estimate(int);
46 #define DH_GRP_MIN 1024
47 #define DH_GRP_MAX 8192
49 #endif