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Annotation of src/usr.bin/ssh/dh.h, Revision 1.19

1.19    ! dtucker     1: /* $OpenBSD: dh.h,v 1.18 2019/09/06 05:23:55 djm Exp $ */
1.2       niklas      2:
1.1       provos      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:
1.18      djm        29: #ifdef WITH_OPENSSL
                     30:
1.1       provos     31: struct dhgroup {
                     32:        int size;
                     33:        BIGNUM *g;
                     34:        BIGNUM *p;
                     35: };
                     36:
1.6       itojun     37: DH     *choose_dh(int, int, int);
1.4       markus     38: DH     *dh_new_group_asc(const char *, const char *);
                     39: DH     *dh_new_group(BIGNUM *, BIGNUM *);
                     40: DH     *dh_new_group1(void);
1.8       djm        41: DH     *dh_new_group14(void);
1.15      djm        42: DH     *dh_new_group16(void);
                     43: DH     *dh_new_group18(void);
1.13      dtucker    44: DH     *dh_new_group_fallback(int);
1.4       markus     45:
1.12      markus     46: int     dh_gen_key(DH *, int);
1.16      djm        47: int     dh_pub_is_valid(const DH *, const BIGNUM *);
1.5       markus     48:
1.12      markus     49: u_int   dh_estimate(int);
1.19    ! dtucker    50: void    dh_set_moduli_file(const char *);
1.3       provos     51:
1.14      djm        52: /*
                     53:  * Max value from RFC4419.
1.17      dtucker    54:  * Min value from RFC8270.
1.14      djm        55:  */
                     56: #define DH_GRP_MIN     2048
1.3       provos     57: #define DH_GRP_MAX     8192
1.10      djm        58:
                     59: /*
                     60:  * Values for "type" field of moduli(5)
                     61:  * Specifies the internal structure of the prime modulus.
                     62:  */
                     63: #define MODULI_TYPE_UNKNOWN            (0)
                     64: #define MODULI_TYPE_UNSTRUCTURED       (1)
                     65: #define MODULI_TYPE_SAFE               (2)
                     66: #define MODULI_TYPE_SCHNORR            (3)
                     67: #define MODULI_TYPE_SOPHIE_GERMAIN     (4)
                     68: #define MODULI_TYPE_STRONG             (5)
                     69:
                     70: /*
                     71:  * Values for "tests" field of moduli(5)
                     72:  * Specifies the methods used in checking for primality.
                     73:  * Usually, more than one test is used.
                     74:  */
                     75: #define MODULI_TESTS_UNTESTED          (0x00)
                     76: #define MODULI_TESTS_COMPOSITE         (0x01)
                     77: #define MODULI_TESTS_SIEVE             (0x02)
                     78: #define MODULI_TESTS_MILLER_RABIN      (0x04)
                     79: #define MODULI_TESTS_JACOBI            (0x08)
                     80: #define MODULI_TESTS_ELLIPTIC          (0x10)
                     81:
1.18      djm        82: #endif /* WITH_OPENSSL */
1.1       provos     83:
1.18      djm        84: #endif /* DH_H */