1 /* $NetBSD: dh.h,v 1.2 2009/06/07 22:38:46 christos Exp $ */ 2 /* $OpenBSD: dh.h,v 1.10 2008/06/26 09:19:40 djm Exp $ */ 3 4 /* 5 * Copyright (c) 2000 Niels Provos. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 #ifndef DH_H 28 #define DH_H 29 30 struct dhgroup { 31 int size; 32 BIGNUM *g; 33 BIGNUM *p; 34 }; 35 36 DH *choose_dh(int, int, int); 37 DH *dh_new_group_asc(const char *, const char *); 38 DH *dh_new_group(BIGNUM *, BIGNUM *); 39 DH *dh_new_group1(void); 40 DH *dh_new_group14(void); 41 42 void dh_gen_key(DH *, int); 43 int dh_pub_is_valid(DH *, BIGNUM *); 44 45 int dh_estimate(int); 46 47 #define DH_GRP_MIN 1024 48 #define DH_GRP_MAX 8192 49 50 /* 51 * Values for "type" field of moduli(5) 52 * Specifies the internal structure of the prime modulus. 53 */ 54 #define MODULI_TYPE_UNKNOWN (0) 55 #define MODULI_TYPE_UNSTRUCTURED (1) 56 #define MODULI_TYPE_SAFE (2) 57 #define MODULI_TYPE_SCHNORR (3) 58 #define MODULI_TYPE_SOPHIE_GERMAIN (4) 59 #define MODULI_TYPE_STRONG (5) 60 61 /* 62 * Values for "tests" field of moduli(5) 63 * Specifies the methods used in checking for primality. 64 * Usually, more than one test is used. 65 */ 66 #define MODULI_TESTS_UNTESTED (0x00) 67 #define MODULI_TESTS_COMPOSITE (0x01) 68 #define MODULI_TESTS_SIEVE (0x02) 69 #define MODULI_TESTS_MILLER_RABIN (0x04) 70 #define MODULI_TESTS_JACOBI (0x08) 71 #define MODULI_TESTS_ELLIPTIC (0x10) 72 73 74 #endif 75