Mercurial > 510Connectbot

annotate src/ch/ethz/ssh2/transport/ClientKexManager.java @ 295:deb5fb087b6f ganymed

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
start conversion from trilead to ganymed
author Carl Byington <carl@five-ten-sg.com>
date Fri, 18 Jul 2014 20:48:40 -0700
parents db9b028016de
children ab3a99f11a36
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
1 /*
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
2 * Copyright (c) 2006-2013 Christian Plattner. All rights reserved.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
3 * Please refer to the LICENSE.txt for licensing details.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
4 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
5 package ch.ethz.ssh2.transport;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
6
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
7 import java.io.IOException;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
8 import java.security.DigestException;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
9 import java.security.SecureRandom;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
10
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
11 import ch.ethz.ssh2.ConnectionInfo;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
12 import ch.ethz.ssh2.PacketTypeException;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
13 import ch.ethz.ssh2.ServerHostKeyVerifier;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
14 import ch.ethz.ssh2.compression.CompressionFactory;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
15 import ch.ethz.ssh2.compression.Compressor;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
16 import ch.ethz.ssh2.crypto.CryptoWishList;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
17 import ch.ethz.ssh2.crypto.cipher.BlockCipher;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
18 import ch.ethz.ssh2.crypto.cipher.BlockCipherFactory;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
19 import ch.ethz.ssh2.crypto.dh.DhExchange;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
20 import ch.ethz.ssh2.crypto.dh.DhGroupExchange;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
21 import ch.ethz.ssh2.crypto.digest.MAC;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
22 import ch.ethz.ssh2.packets.PacketKexDHInit;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
23 import ch.ethz.ssh2.packets.PacketKexDHReply;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
24 import ch.ethz.ssh2.packets.PacketKexDhGexGroup;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
25 import ch.ethz.ssh2.packets.PacketKexDhGexInit;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
26 import ch.ethz.ssh2.packets.PacketKexDhGexReply;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
27 import ch.ethz.ssh2.packets.PacketKexDhGexRequest;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
28 import ch.ethz.ssh2.packets.PacketKexDhGexRequestOld;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
29 import ch.ethz.ssh2.packets.PacketKexInit;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
30 import ch.ethz.ssh2.packets.Packets;
278
d7e088fa2123 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
31 import java.security.interfaces.DSAPublicKey;
281
b4ca341c318d start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 278
diff changeset
32 import java.security.interfaces.ECPublicKey;
278
d7e088fa2123 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
33 import java.security.interfaces.RSAPublicKey;
281
b4ca341c318d start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 278
diff changeset
34 import ch.ethz.ssh2.signature.DSASHA1Verify;
282
c3019725b123 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 281
diff changeset
35 import ch.ethz.ssh2.signature.ECDSASHA2Verify;
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
36 import ch.ethz.ssh2.signature.RSASHA1Verify;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
37
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
38 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
39 * @version $Id: ClientKexManager.java 160 2014-05-01 14:30:26Z dkocher@sudo.ch $
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
40 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
41 public class ClientKexManager extends KexManager {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
42
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
43 private final ServerHostKeyVerifier verifier;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
44
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
45 private final String hostname;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
46
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
47 private final int port;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
48
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
49 public ClientKexManager(TransportManager tm, ClientServerHello csh, CryptoWishList initialCwl, String hostname, int port,
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
50 ServerHostKeyVerifier keyVerifier, SecureRandom rnd) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
51 super(tm, csh, initialCwl, rnd);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
52 this.hostname = hostname;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
53 this.port = port;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
54 this.verifier = keyVerifier;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
55 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
56
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
57 protected boolean verifySignature(byte[] sig, byte[] hostkey) throws IOException {
284
4ec87de11e71 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 282
diff changeset
58 if (kxs.np.server_host_key_algo.startsWith("ecdsa-sha2-")) {
4ec87de11e71 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 282
diff changeset
59 byte[] rs = ECDSASHA2Verify.decodeSSHECDSASignature(sig);
4ec87de11e71 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 282
diff changeset
60 ECPublicKey epk = ECDSASHA2Verify.decodeSSHECDSAPublicKey(hostkey);
287
db9b028016de start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 285
diff changeset
61 log.debug("Verifying ecdsa signature");
284
4ec87de11e71 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 282
diff changeset
62 return ECDSASHA2Verify.verifySignature(kxs.H, rs, epk);
4ec87de11e71 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 282
diff changeset
63 }
4ec87de11e71 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 282
diff changeset
64 if (kxs.np.server_host_key_algo.equals("ssh-rsa")) {
4ec87de11e71 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 282
diff changeset
65 byte[] rs = RSASHA1Verify.decodeSSHRSASignature(sig);
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
66 RSAPublicKey rpk = RSASHA1Verify.decodeSSHRSAPublicKey(hostkey);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
67
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
68 log.debug("Verifying ssh-rsa signature");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
69
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
70 return RSASHA1Verify.verifySignature(kxs.H, rs, rpk);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
71 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
72
284
4ec87de11e71 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 282
diff changeset
73 if (kxs.np.server_host_key_algo.equals("ssh-dss")) {
4ec87de11e71 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 282
diff changeset
74 byte[] ds = DSASHA1Verify.decodeSSHDSASignature(sig);
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
75 DSAPublicKey dpk = DSASHA1Verify.decodeSSHDSAPublicKey(hostkey);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
76
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
77 log.debug("Verifying ssh-dss signature");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
78
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
79 return DSASHA1Verify.verifySignature(kxs.H, ds, dpk);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
80 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
81
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
82 throw new IOException("Unknown server host key algorithm '" + kxs.np.server_host_key_algo + "'");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
83 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
84
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
85 @Override
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
86 public void handleFailure(final IOException failure) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
87 synchronized(accessLock) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
88 connectionClosed = true;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
89 accessLock.notifyAll();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
90 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
91 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
92
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
93 @Override
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
94 public synchronized void handleMessage(byte[] msg) throws IOException {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
95 PacketKexInit kip;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
96
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
97 if((kxs == null) && (msg[0] != Packets.SSH_MSG_KEXINIT)) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
98 throw new PacketTypeException(msg[0]);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
99 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
100
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
101 if(ignore_next_kex_packet) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
102 ignore_next_kex_packet = false;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
103 return;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
104 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
105
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
106 if(msg[0] == Packets.SSH_MSG_KEXINIT) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
107 if((kxs != null) && (kxs.state != 0)) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
108 throw new PacketTypeException(msg[0]);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
109 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
110
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
111 if(kxs == null) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
112 /*
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
113 * Ah, OK, peer wants to do KEX. Let's be nice and play
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
114 * together.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
115 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
116 kxs = new KexState();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
117 kxs.dhgexParameters = nextKEXdhgexParameters;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
118 kip = new PacketKexInit(nextKEXcryptoWishList, rnd);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
119 kxs.localKEX = kip;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
120 tm.sendKexMessage(kip.getPayload());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
121 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
122
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
123 kip = new PacketKexInit(msg);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
124 kxs.remoteKEX = kip;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
125
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
126 kxs.np = mergeKexParameters(kxs.localKEX.getKexParameters(), kxs.remoteKEX.getKexParameters());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
127
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
128 if(kxs.remoteKEX.isFirst_kex_packet_follows() && (kxs.np.guessOK == false)) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
129 // Guess was wrong, we need to ignore the next kex packet.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
130 ignore_next_kex_packet = true;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
131 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
132
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
133 if(kxs.np.kex_algo.equals("diffie-hellman-group-exchange-sha1")) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
134 if(kxs.dhgexParameters.getMin_group_len() == 0) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
135 PacketKexDhGexRequestOld dhgexreq = new PacketKexDhGexRequestOld(kxs.dhgexParameters);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
136 tm.sendKexMessage(dhgexreq.getPayload());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
137
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
138 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
139 else {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
140 PacketKexDhGexRequest dhgexreq = new PacketKexDhGexRequest(kxs.dhgexParameters);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
141 tm.sendKexMessage(dhgexreq.getPayload());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
142 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
143 kxs.state = 1;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
144 return;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
145 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
146
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
147 if(kxs.np.kex_algo.equals("diffie-hellman-group1-sha1")
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
148 || kxs.np.kex_algo.equals("diffie-hellman-group14-sha1")) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
149 kxs.dhx = new DhExchange();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
150
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
151 if(kxs.np.kex_algo.equals("diffie-hellman-group1-sha1")) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
152 kxs.dhx.clientInit(1, rnd);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
153 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
154 else {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
155 kxs.dhx.clientInit(14, rnd);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
156 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
157
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
158 PacketKexDHInit kp = new PacketKexDHInit(kxs.dhx.getE());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
159 tm.sendKexMessage(kp.getPayload());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
160 kxs.state = 1;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
161 return;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
162 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
163
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
164 throw new IllegalStateException("Unkown KEX method!");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
165 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
166
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
167 if(msg[0] == Packets.SSH_MSG_NEWKEYS) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
168 if(km == null) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
169 throw new IOException("Peer sent SSH_MSG_NEWKEYS, but I have no key material ready!");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
170 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
171
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
172 BlockCipher cbc;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
173 MAC mac;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
174 Compressor comp;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
175
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
176 try {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
177 cbc = BlockCipherFactory.createCipher(kxs.np.enc_algo_server_to_client, false,
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
178 km.enc_key_server_to_client, km.initial_iv_server_to_client);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
179
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
180 try {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
181 mac = new MAC(kxs.np.mac_algo_server_to_client, km.integrity_key_server_to_client);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
182 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
183 catch(DigestException e) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
184 throw new IOException(e);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
185 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
186
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
187 comp = CompressionFactory.createCompressor(kxs.np.comp_algo_server_to_client);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
188 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
189 catch(IllegalArgumentException e) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
190 throw new IOException(e.getMessage());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
191 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
192
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
193 tm.changeRecvCipher(cbc, mac);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
194 tm.changeRecvCompression(comp);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
195
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
196 ConnectionInfo sci = new ConnectionInfo();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
197
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
198 kexCount++;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
199
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
200 sci.keyExchangeAlgorithm = kxs.np.kex_algo;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
201 sci.keyExchangeCounter = kexCount;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
202 sci.clientToServerCryptoAlgorithm = kxs.np.enc_algo_client_to_server;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
203 sci.serverToClientCryptoAlgorithm = kxs.np.enc_algo_server_to_client;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
204 sci.clientToServerMACAlgorithm = kxs.np.mac_algo_client_to_server;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
205 sci.serverToClientMACAlgorithm = kxs.np.mac_algo_server_to_client;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
206 sci.serverHostKeyAlgorithm = kxs.np.server_host_key_algo;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
207 sci.serverHostKey = kxs.remote_hostkey;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
208
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
209 synchronized(accessLock) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
210 lastConnInfo = sci;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
211 accessLock.notifyAll();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
212 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
213
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
214 kxs = null;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
215 return;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
216 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
217
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
218 if((kxs == null) || (kxs.state == 0)) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
219 throw new IOException("Unexpected Kex submessage!");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
220 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
221
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
222 if(kxs.np.kex_algo.equals("diffie-hellman-group-exchange-sha1")) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
223 if(kxs.state == 1) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
224 PacketKexDhGexGroup dhgexgrp = new PacketKexDhGexGroup(msg);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
225 kxs.dhgx = new DhGroupExchange(dhgexgrp.getP(), dhgexgrp.getG());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
226 kxs.dhgx.init(rnd);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
227 PacketKexDhGexInit dhgexinit = new PacketKexDhGexInit(kxs.dhgx.getE());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
228 tm.sendKexMessage(dhgexinit.getPayload());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
229 kxs.state = 2;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
230 return;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
231 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
232
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
233 if(kxs.state == 2) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
234 PacketKexDhGexReply dhgexrpl = new PacketKexDhGexReply(msg);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
235
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
236 kxs.remote_hostkey = dhgexrpl.getHostKey();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
237
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
238 if(verifier != null) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
239 try {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
240 if(!verifier.verifyServerHostKey(hostname, port, kxs.np.server_host_key_algo, kxs.remote_hostkey)) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
241 throw new IOException("The server host key was not accepted by the verifier callback");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
242 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
243 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
244 catch(Exception e) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
245 throw new IOException(
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
246 "The server host key was not accepted by the verifier callback.", e);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
247 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
248 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
249
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
250 kxs.dhgx.setF(dhgexrpl.getF());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
251
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
252 try {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
253 kxs.H = kxs.dhgx.calculateH(csh.getClientString(), csh.getServerString(),
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
254 kxs.localKEX.getPayload(), kxs.remoteKEX.getPayload(), dhgexrpl.getHostKey(),
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
255 kxs.dhgexParameters);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
256 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
257 catch(IllegalArgumentException e) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
258 throw new IOException("KEX error.", e);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
259 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
260 if(!verifySignature(dhgexrpl.getSignature(), kxs.remote_hostkey)) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
261 throw new IOException("Invalid remote host key signature");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
262 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
263 kxs.K = kxs.dhgx.getK();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
264 finishKex(true);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
265 kxs.state = -1;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
266 return;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
267 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
268
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
269 throw new IllegalStateException("Illegal State in KEX Exchange!");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
270 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
271
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
272 if(kxs.np.kex_algo.equals("diffie-hellman-group1-sha1")
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
273 || kxs.np.kex_algo.equals("diffie-hellman-group14-sha1")) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
274 if(kxs.state == 1) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
275
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
276 PacketKexDHReply dhr = new PacketKexDHReply(msg);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
277
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
278 kxs.remote_hostkey = dhr.getHostKey();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
279
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
280 if(verifier != null) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
281 try {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
282 if(!verifier.verifyServerHostKey(hostname, port, kxs.np.server_host_key_algo, kxs.remote_hostkey)) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
283 throw new IOException("The server host key was not accepted by the verifier callback");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
284 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
285 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
286 catch(Exception e) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
287 throw new IOException("The server host key was not accepted by the verifier callback", e);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
288 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
289 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
290 kxs.dhx.setF(dhr.getF());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
291 try {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
292 kxs.H = kxs.dhx.calculateH(csh.getClientString(), csh.getServerString(), kxs.localKEX.getPayload(),
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
293 kxs.remoteKEX.getPayload(), dhr.getHostKey());
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
294 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
295 catch(IllegalArgumentException e) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
296 throw new IOException("KEX error.", e);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
297 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
298 if(!verifySignature(dhr.getSignature(), kxs.remote_hostkey)) {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
299 throw new IOException("Invalid remote host key signature");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
300 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
301 kxs.K = kxs.dhx.getK();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
302 finishKex(true);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
303 kxs.state = -1;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
304 return;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
305 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
306 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
307 throw new IllegalStateException(String.format("Unknown KEX method %s", kxs.np.kex_algo));
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
308 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
309 }