mirror of
git://anongit.mindrot.org/openssh.git
synced 2024-11-24 10:53:24 +08:00
0bc1bd814e
- markus@cvs.openbsd.org 2000/11/06 16:04:56 [channels.c channels.h clientloop.c nchan.c serverloop.c] [session.c ssh.c] agent forwarding and -R for ssh2, based on work from jhuuskon@messi.uku.fi - markus@cvs.openbsd.org 2000/11/06 16:13:27 [ssh.c sshconnect.c sshd.c] do not disabled rhosts(rsa) if server port > 1024; from pekkas@netcore.fi - markus@cvs.openbsd.org 2000/11/06 16:16:35 [sshconnect.c] downgrade client to 1.3 if server is 1.4; help from mdb@juniper.net - markus@cvs.openbsd.org 2000/11/09 18:04:40 [auth1.c] typo; from mouring@pconline.com - markus@cvs.openbsd.org 2000/11/12 12:03:28 [ssh-agent.c] off-by-one when removing a key from the agent - markus@cvs.openbsd.org 2000/11/12 12:50:39 [auth-rh-rsa.c auth2.c authfd.c authfd.h] [authfile.c hostfile.c kex.c kex.h key.c key.h myproposal.h] [readconf.c readconf.h rsa.c rsa.h servconf.c servconf.h ssh-add.c] [ssh-agent.c ssh-keygen.1 ssh-keygen.c ssh.1 ssh.c ssh_config] [sshconnect1.c sshconnect2.c sshd.8 sshd.c sshd_config ssh-dss.c] [ssh-dss.h ssh-rsa.c ssh-rsa.h dsa.c dsa.h] add support for RSA to SSH2. please test. there are now 3 types of keys: RSA1 is used by ssh-1 only, RSA and DSA are used by SSH2. you can use 'ssh-keygen -t rsa -f ssh2_rsa_file' to generate RSA keys for SSH2 and use the RSA keys for hostkeys or for user keys. SSH2 RSA or DSA keys are added to .ssh/authorised_keys2 as before. - (djm) Fix up Makefile and Redhat init script to create RSA host keys - (djm) Change to interim version
122 lines
3.8 KiB
C
122 lines
3.8 KiB
C
/*
|
|
* Author: Tatu Ylonen <ylo@cs.hut.fi>
|
|
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
|
|
* All rights reserved
|
|
*
|
|
* As far as I am concerned, the code I have written for this software
|
|
* can be used freely for any purpose. Any derived versions of this
|
|
* software must be clearly marked as such, and if the derived work is
|
|
* incompatible with the protocol description in the RFC file, it must be
|
|
* called by a name other than "ssh" or "Secure Shell".
|
|
*
|
|
*
|
|
* Copyright (c) 1999 Niels Provos. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*
|
|
* Description of the RSA algorithm can be found e.g. from the following
|
|
* sources:
|
|
*
|
|
* Bruce Schneier: Applied Cryptography. John Wiley & Sons, 1994.
|
|
*
|
|
* Jennifer Seberry and Josed Pieprzyk: Cryptography: An Introduction to
|
|
* Computer Security. Prentice-Hall, 1989.
|
|
*
|
|
* Man Young Rhee: Cryptography and Secure Data Communications. McGraw-Hill,
|
|
* 1994.
|
|
*
|
|
* R. Rivest, A. Shamir, and L. M. Adleman: Cryptographic Communications
|
|
* System and Method. US Patent 4,405,829, 1983.
|
|
*
|
|
* Hans Riesel: Prime Numbers and Computer Methods for Factorization.
|
|
* Birkhauser, 1994.
|
|
*
|
|
* The RSA Frequently Asked Questions document by RSA Data Security,
|
|
* Inc., 1995.
|
|
*
|
|
* RSA in 3 lines of perl by Adam Back <aba@atlax.ex.ac.uk>, 1995, as
|
|
* included below:
|
|
*
|
|
* [gone - had to be deleted - what a pity]
|
|
*/
|
|
|
|
#include "includes.h"
|
|
RCSID("$OpenBSD: rsa.c,v 1.17 2000/11/12 19:50:37 markus Exp $");
|
|
|
|
#include "rsa.h"
|
|
#include "ssh.h"
|
|
#include "xmalloc.h"
|
|
#include "entropy.h"
|
|
|
|
void
|
|
rsa_public_encrypt(BIGNUM *out, BIGNUM *in, RSA *key)
|
|
{
|
|
unsigned char *inbuf, *outbuf;
|
|
int len, ilen, olen;
|
|
|
|
if (BN_num_bits(key->e) < 2 || !BN_is_odd(key->e))
|
|
fatal("rsa_public_encrypt() exponent too small or not odd");
|
|
|
|
olen = BN_num_bytes(key->n);
|
|
outbuf = xmalloc(olen);
|
|
|
|
ilen = BN_num_bytes(in);
|
|
inbuf = xmalloc(ilen);
|
|
BN_bn2bin(in, inbuf);
|
|
|
|
if ((len = RSA_public_encrypt(ilen, inbuf, outbuf, key,
|
|
RSA_PKCS1_PADDING)) <= 0)
|
|
fatal("rsa_public_encrypt() failed");
|
|
|
|
BN_bin2bn(outbuf, len, out);
|
|
|
|
memset(outbuf, 0, olen);
|
|
memset(inbuf, 0, ilen);
|
|
xfree(outbuf);
|
|
xfree(inbuf);
|
|
}
|
|
|
|
void
|
|
rsa_private_decrypt(BIGNUM *out, BIGNUM *in, RSA *key)
|
|
{
|
|
unsigned char *inbuf, *outbuf;
|
|
int len, ilen, olen;
|
|
|
|
olen = BN_num_bytes(key->n);
|
|
outbuf = xmalloc(olen);
|
|
|
|
ilen = BN_num_bytes(in);
|
|
inbuf = xmalloc(ilen);
|
|
BN_bn2bin(in, inbuf);
|
|
|
|
if ((len = RSA_private_decrypt(ilen, inbuf, outbuf, key,
|
|
RSA_PKCS1_PADDING)) <= 0)
|
|
fatal("rsa_private_decrypt() failed");
|
|
|
|
BN_bin2bn(outbuf, len, out);
|
|
|
|
memset(outbuf, 0, olen);
|
|
memset(inbuf, 0, ilen);
|
|
xfree(outbuf);
|
|
xfree(inbuf);
|
|
}
|