crypto/external/bsd/openssh/dist/dh.h

   1 /*      $NetBSD$        */
   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