djm@openbsd.org | 0e8eeec | 2016-05-02 10:26:04 +0000 | [diff] [blame] | 1 | /* $OpenBSD: dh.h,v 1.15 2016/05/02 10:26:04 djm Exp $ */ |
Ben Lindstrom | 36579d3 | 2001-01-29 07:39:26 +0000 | [diff] [blame] | 2 | |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 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 | |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 35 | DH *choose_dh(int, int, int); |
Damien Miller | 9709f90 | 2001-03-30 10:50:10 +1000 | [diff] [blame] | 36 | DH *dh_new_group_asc(const char *, const char *); |
| 37 | DH *dh_new_group(BIGNUM *, BIGNUM *); |
| 38 | DH *dh_new_group1(void); |
Damien Miller | f675fc4 | 2004-06-15 10:30:09 +1000 | [diff] [blame] | 39 | DH *dh_new_group14(void); |
djm@openbsd.org | 0e8eeec | 2016-05-02 10:26:04 +0000 | [diff] [blame] | 40 | DH *dh_new_group16(void); |
| 41 | DH *dh_new_group18(void); |
dtucker@openbsd.org | 40f6429 | 2015-05-27 23:39:18 +0000 | [diff] [blame] | 42 | DH *dh_new_group_fallback(int); |
Damien Miller | 9709f90 | 2001-03-30 10:50:10 +1000 | [diff] [blame] | 43 | |
markus@openbsd.org | 57d10cb | 2015-01-19 20:16:15 +0000 | [diff] [blame] | 44 | int dh_gen_key(DH *, int); |
djm@openbsd.org | 482d23b | 2018-09-13 02:08:33 +0000 | [diff] [blame] | 45 | int dh_pub_is_valid(const DH *, const BIGNUM *); |
Ben Lindstrom | df22139 | 2001-03-29 00:36:16 +0000 | [diff] [blame] | 46 | |
markus@openbsd.org | 57d10cb | 2015-01-19 20:16:15 +0000 | [diff] [blame] | 47 | u_int dh_estimate(int); |
Ben Lindstrom | 20d7c7b | 2001-04-04 01:56:17 +0000 | [diff] [blame] | 48 | |
djm@openbsd.org | b56deb8 | 2015-10-16 22:32:22 +0000 | [diff] [blame] | 49 | /* |
| 50 | * Max value from RFC4419. |
| 51 | * Miniumum increased in light of DH precomputation attacks. |
| 52 | */ |
| 53 | #define DH_GRP_MIN 2048 |
Ben Lindstrom | df22139 | 2001-03-29 00:36:16 +0000 | [diff] [blame] | 54 | #define DH_GRP_MAX 8192 |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 55 | |
Damien Miller | 2e9cf49 | 2008-06-29 22:47:04 +1000 | [diff] [blame] | 56 | /* |
| 57 | * Values for "type" field of moduli(5) |
| 58 | * Specifies the internal structure of the prime modulus. |
| 59 | */ |
| 60 | #define MODULI_TYPE_UNKNOWN (0) |
| 61 | #define MODULI_TYPE_UNSTRUCTURED (1) |
| 62 | #define MODULI_TYPE_SAFE (2) |
| 63 | #define MODULI_TYPE_SCHNORR (3) |
| 64 | #define MODULI_TYPE_SOPHIE_GERMAIN (4) |
| 65 | #define MODULI_TYPE_STRONG (5) |
| 66 | |
| 67 | /* |
| 68 | * Values for "tests" field of moduli(5) |
| 69 | * Specifies the methods used in checking for primality. |
| 70 | * Usually, more than one test is used. |
| 71 | */ |
| 72 | #define MODULI_TESTS_UNTESTED (0x00) |
| 73 | #define MODULI_TESTS_COMPOSITE (0x01) |
| 74 | #define MODULI_TESTS_SIEVE (0x02) |
| 75 | #define MODULI_TESTS_MILLER_RABIN (0x04) |
| 76 | #define MODULI_TESTS_JACOBI (0x08) |
| 77 | #define MODULI_TESTS_ELLIPTIC (0x10) |
| 78 | |
| 79 | |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 80 | #endif |