| /* $OpenBSD: dh.h,v 1.14 2015/10/16 22:32:22 djm Exp $ */ |
| |
| /* |
| * Copyright (c) 2000 Niels Provos. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef DH_H |
| #define DH_H |
| |
| struct dhgroup { |
| int size; |
| BIGNUM *g; |
| BIGNUM *p; |
| }; |
| |
| DH *choose_dh(int, int, int); |
| DH *dh_new_group_asc(const char *, const char *); |
| DH *dh_new_group(BIGNUM *, BIGNUM *); |
| DH *dh_new_group1(void); |
| DH *dh_new_group14(void); |
| DH *dh_new_group_fallback(int); |
| |
| int dh_gen_key(DH *, int); |
| int dh_pub_is_valid(DH *, BIGNUM *); |
| |
| u_int dh_estimate(int); |
| |
| /* |
| * Max value from RFC4419. |
| * Miniumum increased in light of DH precomputation attacks. |
| */ |
| #define DH_GRP_MIN 2048 |
| #define DH_GRP_MAX 8192 |
| |
| /* |
| * Values for "type" field of moduli(5) |
| * Specifies the internal structure of the prime modulus. |
| */ |
| #define MODULI_TYPE_UNKNOWN (0) |
| #define MODULI_TYPE_UNSTRUCTURED (1) |
| #define MODULI_TYPE_SAFE (2) |
| #define MODULI_TYPE_SCHNORR (3) |
| #define MODULI_TYPE_SOPHIE_GERMAIN (4) |
| #define MODULI_TYPE_STRONG (5) |
| |
| /* |
| * Values for "tests" field of moduli(5) |
| * Specifies the methods used in checking for primality. |
| * Usually, more than one test is used. |
| */ |
| #define MODULI_TESTS_UNTESTED (0x00) |
| #define MODULI_TESTS_COMPOSITE (0x01) |
| #define MODULI_TESTS_SIEVE (0x02) |
| #define MODULI_TESTS_MILLER_RABIN (0x04) |
| #define MODULI_TESTS_JACOBI (0x08) |
| #define MODULI_TESTS_ELLIPTIC (0x10) |
| |
| |
| #endif |