19261079b7
Some notable changes, from upstream's release notes: - sshd(8): Remove support for obsolete "host/port" syntax. - ssh(1): When prompting whether to record a new host key, accept the key fingerprint as a synonym for "yes". - ssh-keygen(1): when acting as a CA and signing certificates with an RSA key, default to using the rsa-sha2-512 signature algorithm. - ssh(1), sshd(8), ssh-keygen(1): this release removes the "ssh-rsa" (RSA/SHA1) algorithm from those accepted for certificate signatures. - ssh-sk-helper(8): this is a new binary. It is used by the FIDO/U2F support to provide address-space isolation for token middleware libraries (including the internal one). - ssh(1): this release enables UpdateHostkeys by default subject to some conservative preconditions. - scp(1): this release changes the behaviour of remote to remote copies (e.g. "scp host-a:/path host-b:") to transfer through the local host by default. - scp(1): experimental support for transfers using the SFTP protocol as a replacement for the venerable SCP/RCP protocol that it has traditionally used. Additional integration work is needed to support FIDO/U2F in the base system. Deprecation Notice ------------------ OpenSSH will disable the ssh-rsa signature scheme by default in the next release. Reviewed by: imp MFC after: 1 month Relnotes: Yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D29985
85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
/* $OpenBSD: dh.h,v 1.19 2021/03/12 04:08:19 dtucker 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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#ifdef WITH_OPENSSL
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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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int dh_gen_key(DH *, int);
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int dh_pub_is_valid(const DH *, const BIGNUM *);
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u_int dh_estimate(int);
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void dh_set_moduli_file(const char *);
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/*
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* Max value from RFC4419.
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* Min value from RFC8270.
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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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* 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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* 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 /* WITH_OPENSSL */
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#endif /* DH_H */
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