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/* $OpenBSD: dh.h,v 1.15 2016/05/02 10:26:04 djm Exp $ */ |
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/* |
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* Copyright (c) 2000 Niels Provos. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef DH_H |
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#define DH_H |
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|
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struct dhgroup { |
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int size; |
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BIGNUM *g; |
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BIGNUM *p; |
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}; |
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DH *choose_dh(int, int, int); |
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DH *dh_new_group_asc(const char *, const char *); |
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DH *dh_new_group(BIGNUM *, BIGNUM *); |
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DH *dh_new_group1(void); |
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DH *dh_new_group14(void); |
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DH *dh_new_group16(void); |
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DH *dh_new_group18(void); |
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DH *dh_new_group_fallback(int); |
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|
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int dh_gen_key(DH *, int); |
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int dh_pub_is_valid(const DH *, const BIGNUM *); |
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|
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u_int dh_estimate(int); |
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/* |
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* Max value from RFC4419. |
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* Miniumum increased in light of DH precomputation attacks. |
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*/ |
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#define DH_GRP_MIN 2048 |
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#define DH_GRP_MAX 8192 |
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|
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/* |
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* Values for "type" field of moduli(5) |
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* Specifies the internal structure of the prime modulus. |
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*/ |
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#define MODULI_TYPE_UNKNOWN (0) |
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#define MODULI_TYPE_UNSTRUCTURED (1) |
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#define MODULI_TYPE_SAFE (2) |
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#define MODULI_TYPE_SCHNORR (3) |
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#define MODULI_TYPE_SOPHIE_GERMAIN (4) |
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#define MODULI_TYPE_STRONG (5) |
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|
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/* |
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* Values for "tests" field of moduli(5) |
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* Specifies the methods used in checking for primality. |
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* Usually, more than one test is used. |
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*/ |
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#define MODULI_TESTS_UNTESTED (0x00) |
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#define MODULI_TESTS_COMPOSITE (0x01) |
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#define MODULI_TESTS_SIEVE (0x02) |
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#define MODULI_TESTS_MILLER_RABIN (0x04) |
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#define MODULI_TESTS_JACOBI (0x08) |
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#define MODULI_TESTS_ELLIPTIC (0x10) |
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#endif |
