Annotation of src/usr.bin/ssh/dh.h, Revision 1.14
1.14 ! djm 1: /* $OpenBSD: dh.h,v 1.13 2015/05/27 23:39:18 dtucker Exp $ */
1.2 niklas 2:
1.1 provos 3: /*
4: * Copyright (c) 2000 Niels Provos. All rights reserved.
5: *
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.
14: *
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.
25: */
26: #ifndef DH_H
27: #define DH_H
28:
29: struct dhgroup {
30: int size;
31: BIGNUM *g;
32: BIGNUM *p;
33: };
34:
1.6 itojun 35: DH *choose_dh(int, int, int);
1.4 markus 36: DH *dh_new_group_asc(const char *, const char *);
37: DH *dh_new_group(BIGNUM *, BIGNUM *);
38: DH *dh_new_group1(void);
1.8 djm 39: DH *dh_new_group14(void);
1.13 dtucker 40: DH *dh_new_group_fallback(int);
1.4 markus 41:
1.12 markus 42: int dh_gen_key(DH *, int);
1.7 markus 43: int dh_pub_is_valid(DH *, BIGNUM *);
1.5 markus 44:
1.12 markus 45: u_int dh_estimate(int);
1.3 provos 46:
1.14 ! djm 47: /*
! 48: * Max value from RFC4419.
! 49: * Miniumum increased in light of DH precomputation attacks.
! 50: */
! 51: #define DH_GRP_MIN 2048
1.3 provos 52: #define DH_GRP_MAX 8192
1.10 djm 53:
54: /*
55: * Values for "type" field of moduli(5)
56: * Specifies the internal structure of the prime modulus.
57: */
58: #define MODULI_TYPE_UNKNOWN (0)
59: #define MODULI_TYPE_UNSTRUCTURED (1)
60: #define MODULI_TYPE_SAFE (2)
61: #define MODULI_TYPE_SCHNORR (3)
62: #define MODULI_TYPE_SOPHIE_GERMAIN (4)
63: #define MODULI_TYPE_STRONG (5)
64:
65: /*
66: * Values for "tests" field of moduli(5)
67: * Specifies the methods used in checking for primality.
68: * Usually, more than one test is used.
69: */
70: #define MODULI_TESTS_UNTESTED (0x00)
71: #define MODULI_TESTS_COMPOSITE (0x01)
72: #define MODULI_TESTS_SIEVE (0x02)
73: #define MODULI_TESTS_MILLER_RABIN (0x04)
74: #define MODULI_TESTS_JACOBI (0x08)
75: #define MODULI_TESTS_ELLIPTIC (0x10)
76:
1.1 provos 77:
78: #endif