author | xuelei |
Tue, 18 Dec 2018 12:08:51 -0800 | |
changeset 53064 | 103ed9569fc8 |
parent 50768 | 68fa3d4026ea |
child 53734 | cb1642ccc732 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
50768 | 2 |
* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved. |
2 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 |
* |
|
5 |
* This code is free software; you can redistribute it and/or modify it |
|
6 |
* under the terms of the GNU General Public License version 2 only, as |
|
5506 | 7 |
* published by the Free Software Foundation. Oracle designates this |
2 | 8 |
* particular file as subject to the "Classpath" exception as provided |
5506 | 9 |
* by Oracle in the LICENSE file that accompanied this code. |
2 | 10 |
* |
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that |
|
15 |
* accompanied this code). |
|
16 |
* |
|
17 |
* You should have received a copy of the GNU General Public License version |
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation, |
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
20 |
* |
|
5506 | 21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
22 |
* or visit www.oracle.com if you need additional information or have any |
|
23 |
* questions. |
|
2 | 24 |
*/ |
25 |
||
26 |
package sun.security.ssl; |
|
27 |
||
28 |
import java.io.IOException; |
|
50768 | 29 |
import java.nio.ByteBuffer; |
30 |
import java.security.AlgorithmConstraints; |
|
31 |
import java.security.CryptoPrimitive; |
|
32 |
import java.security.GeneralSecurityException; |
|
33 |
import java.security.KeyFactory; |
|
34 |
import java.security.PrivateKey; |
|
2 | 35 |
import java.security.PublicKey; |
50768 | 36 |
import java.security.interfaces.ECPrivateKey; |
2 | 37 |
import java.security.interfaces.ECPublicKey; |
50768 | 38 |
import java.security.spec.ECParameterSpec; |
39 |
import java.security.spec.ECPoint; |
|
40 |
import java.security.spec.ECPublicKeySpec; |
|
41 |
import java.text.MessageFormat; |
|
42 |
import java.util.EnumSet; |
|
43 |
import java.util.Locale; |
|
44 |
import javax.crypto.SecretKey; |
|
45 |
import javax.net.ssl.SSLHandshakeException; |
|
46 |
import sun.security.ssl.ECDHKeyExchange.ECDHECredentials; |
|
47 |
import sun.security.ssl.ECDHKeyExchange.ECDHEPossession; |
|
48 |
import sun.security.ssl.SSLHandshake.HandshakeMessage; |
|
49 |
import sun.security.ssl.SupportedGroupsExtension.NamedGroup; |
|
50 |
import sun.security.ssl.X509Authentication.X509Credentials; |
|
51 |
import sun.security.ssl.X509Authentication.X509Possession; |
|
52 |
import sun.security.util.HexDumpEncoder; |
|
2 | 53 |
|
54 |
/** |
|
50768 | 55 |
* Pack of the "ClientKeyExchange" handshake message. |
2 | 56 |
*/ |
50768 | 57 |
final class ECDHClientKeyExchange { |
58 |
static final SSLConsumer ecdhHandshakeConsumer = |
|
59 |
new ECDHClientKeyExchangeConsumer(); |
|
60 |
static final HandshakeProducer ecdhHandshakeProducer = |
|
61 |
new ECDHClientKeyExchangeProducer(); |
|
62 |
||
63 |
static final SSLConsumer ecdheHandshakeConsumer = |
|
64 |
new ECDHEClientKeyExchangeConsumer(); |
|
65 |
static final HandshakeProducer ecdheHandshakeProducer = |
|
66 |
new ECDHEClientKeyExchangeProducer(); |
|
67 |
||
68 |
/** |
|
69 |
* The ECDH/ECDHE ClientKeyExchange handshake message. |
|
70 |
*/ |
|
71 |
private static final |
|
72 |
class ECDHClientKeyExchangeMessage extends HandshakeMessage { |
|
73 |
private final byte[] encodedPoint; |
|
74 |
||
75 |
ECDHClientKeyExchangeMessage(HandshakeContext handshakeContext, |
|
76 |
ECPublicKey publicKey) { |
|
77 |
super(handshakeContext); |
|
78 |
||
79 |
ECPoint point = publicKey.getW(); |
|
80 |
ECParameterSpec params = publicKey.getParams(); |
|
81 |
encodedPoint = JsseJce.encodePoint(point, params.getCurve()); |
|
82 |
} |
|
83 |
||
84 |
ECDHClientKeyExchangeMessage(HandshakeContext handshakeContext, |
|
85 |
ByteBuffer m) throws IOException { |
|
86 |
super(handshakeContext); |
|
87 |
if (m.remaining() != 0) { // explicit PublicValueEncoding |
|
88 |
this.encodedPoint = Record.getBytes8(m); |
|
89 |
} else { |
|
90 |
this.encodedPoint = new byte[0]; |
|
91 |
} |
|
92 |
} |
|
93 |
||
94 |
// Check constraints of the specified EC public key. |
|
95 |
static void checkConstraints(AlgorithmConstraints constraints, |
|
96 |
ECPublicKey publicKey, |
|
97 |
byte[] encodedPoint) throws SSLHandshakeException { |
|
98 |
||
99 |
try { |
|
100 |
ECParameterSpec params = publicKey.getParams(); |
|
101 |
ECPoint point = |
|
102 |
JsseJce.decodePoint(encodedPoint, params.getCurve()); |
|
103 |
ECPublicKeySpec spec = new ECPublicKeySpec(point, params); |
|
104 |
||
105 |
KeyFactory kf = JsseJce.getKeyFactory("EC"); |
|
106 |
ECPublicKey peerPublicKey = |
|
107 |
(ECPublicKey)kf.generatePublic(spec); |
|
2 | 108 |
|
50768 | 109 |
// check constraints of ECPublicKey |
110 |
if (!constraints.permits( |
|
111 |
EnumSet.of(CryptoPrimitive.KEY_AGREEMENT), |
|
112 |
peerPublicKey)) { |
|
113 |
throw new SSLHandshakeException( |
|
114 |
"ECPublicKey does not comply to algorithm constraints"); |
|
115 |
} |
|
116 |
} catch (GeneralSecurityException | java.io.IOException e) { |
|
117 |
throw (SSLHandshakeException) new SSLHandshakeException( |
|
118 |
"Could not generate ECPublicKey").initCause(e); |
|
119 |
} |
|
120 |
} |
|
121 |
||
122 |
@Override |
|
123 |
public SSLHandshake handshakeType() { |
|
124 |
return SSLHandshake.CLIENT_KEY_EXCHANGE; |
|
125 |
} |
|
126 |
||
127 |
@Override |
|
128 |
public int messageLength() { |
|
129 |
if (encodedPoint == null || encodedPoint.length == 0) { |
|
130 |
return 0; |
|
131 |
} else { |
|
132 |
return 1 + encodedPoint.length; |
|
133 |
} |
|
134 |
} |
|
135 |
||
136 |
@Override |
|
137 |
public void send(HandshakeOutStream hos) throws IOException { |
|
138 |
if (encodedPoint != null && encodedPoint.length != 0) { |
|
139 |
hos.putBytes8(encodedPoint); |
|
140 |
} |
|
141 |
} |
|
142 |
||
143 |
@Override |
|
144 |
public String toString() { |
|
145 |
MessageFormat messageFormat = new MessageFormat( |
|
146 |
"\"ECDH ClientKeyExchange\": '{'\n" + |
|
147 |
" \"ecdh public\": '{'\n" + |
|
148 |
"{0}\n" + |
|
149 |
" '}',\n" + |
|
150 |
"'}'", |
|
151 |
Locale.ENGLISH); |
|
152 |
if (encodedPoint == null || encodedPoint.length == 0) { |
|
153 |
Object[] messageFields = { |
|
154 |
" <implicit>" |
|
155 |
}; |
|
156 |
return messageFormat.format(messageFields); |
|
157 |
} else { |
|
158 |
HexDumpEncoder hexEncoder = new HexDumpEncoder(); |
|
159 |
Object[] messageFields = { |
|
160 |
Utilities.indent( |
|
161 |
hexEncoder.encodeBuffer(encodedPoint), " "), |
|
162 |
}; |
|
163 |
return messageFormat.format(messageFields); |
|
164 |
} |
|
165 |
} |
|
2 | 166 |
} |
167 |
||
50768 | 168 |
/** |
169 |
* The ECDH "ClientKeyExchange" handshake message producer. |
|
170 |
*/ |
|
171 |
private static final |
|
172 |
class ECDHClientKeyExchangeProducer implements HandshakeProducer { |
|
173 |
// Prevent instantiation of this class. |
|
174 |
private ECDHClientKeyExchangeProducer() { |
|
175 |
// blank |
|
176 |
} |
|
177 |
||
178 |
@Override |
|
179 |
public byte[] produce(ConnectionContext context, |
|
180 |
HandshakeMessage message) throws IOException { |
|
181 |
// The producing happens in client side only. |
|
182 |
ClientHandshakeContext chc = (ClientHandshakeContext)context; |
|
183 |
||
184 |
X509Credentials x509Credentials = null; |
|
185 |
for (SSLCredentials credential : chc.handshakeCredentials) { |
|
186 |
if (credential instanceof X509Credentials) { |
|
187 |
x509Credentials = (X509Credentials)credential; |
|
188 |
break; |
|
189 |
} |
|
190 |
} |
|
191 |
||
192 |
if (x509Credentials == null) { |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
193 |
throw chc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 194 |
"No server certificate for ECDH client key exchange"); |
195 |
} |
|
196 |
||
197 |
PublicKey publicKey = x509Credentials.popPublicKey; |
|
198 |
if (!publicKey.getAlgorithm().equals("EC")) { |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
199 |
throw chc.conContext.fatal(Alert.ILLEGAL_PARAMETER, |
50768 | 200 |
"Not EC server certificate for ECDH client key exchange"); |
201 |
} |
|
202 |
||
203 |
ECParameterSpec params = ((ECPublicKey)publicKey).getParams(); |
|
204 |
NamedGroup namedGroup = NamedGroup.valueOf(params); |
|
205 |
if (namedGroup == null) { |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
206 |
throw chc.conContext.fatal(Alert.ILLEGAL_PARAMETER, |
50768 | 207 |
"Unsupported EC server cert for ECDH client key exchange"); |
208 |
} |
|
2 | 209 |
|
50768 | 210 |
ECDHEPossession ecdhePossession = new ECDHEPossession( |
211 |
namedGroup, chc.sslContext.getSecureRandom()); |
|
212 |
chc.handshakePossessions.add(ecdhePossession); |
|
213 |
ECDHClientKeyExchangeMessage cke = |
|
214 |
new ECDHClientKeyExchangeMessage( |
|
215 |
chc, ecdhePossession.publicKey); |
|
216 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
217 |
SSLLogger.fine( |
|
218 |
"Produced ECDH ClientKeyExchange handshake message", cke); |
|
219 |
} |
|
220 |
||
221 |
// Output the handshake message. |
|
222 |
cke.write(chc.handshakeOutput); |
|
223 |
chc.handshakeOutput.flush(); |
|
224 |
||
225 |
// update the states |
|
226 |
SSLKeyExchange ke = SSLKeyExchange.valueOf( |
|
227 |
chc.negotiatedCipherSuite.keyExchange, |
|
228 |
chc.negotiatedProtocol); |
|
229 |
if (ke == null) { |
|
230 |
// unlikely |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
231 |
throw chc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 232 |
"Not supported key exchange type"); |
233 |
} else { |
|
234 |
SSLKeyDerivation masterKD = ke.createKeyDerivation(chc); |
|
235 |
SecretKey masterSecret = |
|
236 |
masterKD.deriveKey("MasterSecret", null); |
|
237 |
chc.handshakeSession.setMasterSecret(masterSecret); |
|
238 |
||
239 |
SSLTrafficKeyDerivation kd = |
|
240 |
SSLTrafficKeyDerivation.valueOf(chc.negotiatedProtocol); |
|
241 |
if (kd == null) { |
|
242 |
// unlikely |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
243 |
throw chc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 244 |
"Not supported key derivation: " + |
245 |
chc.negotiatedProtocol); |
|
246 |
} else { |
|
247 |
chc.handshakeKeyDerivation = |
|
248 |
kd.createKeyDerivation(chc, masterSecret); |
|
249 |
} |
|
250 |
} |
|
251 |
||
252 |
// The handshake message has been delivered. |
|
253 |
return null; |
|
254 |
} |
|
2 | 255 |
} |
256 |
||
50768 | 257 |
/** |
258 |
* The ECDH "ClientKeyExchange" handshake message consumer. |
|
259 |
*/ |
|
260 |
private static final |
|
261 |
class ECDHClientKeyExchangeConsumer implements SSLConsumer { |
|
262 |
// Prevent instantiation of this class. |
|
263 |
private ECDHClientKeyExchangeConsumer() { |
|
264 |
// blank |
|
265 |
} |
|
266 |
||
267 |
@Override |
|
268 |
public void consume(ConnectionContext context, |
|
269 |
ByteBuffer message) throws IOException { |
|
270 |
// The consuming happens in server side only. |
|
271 |
ServerHandshakeContext shc = (ServerHandshakeContext)context; |
|
272 |
||
273 |
X509Possession x509Possession = null; |
|
274 |
for (SSLPossession possession : shc.handshakePossessions) { |
|
275 |
if (possession instanceof X509Possession) { |
|
276 |
x509Possession = (X509Possession)possession; |
|
277 |
break; |
|
278 |
} |
|
279 |
} |
|
280 |
||
281 |
if (x509Possession == null) { |
|
282 |
// unlikely, have been checked during cipher suite negotiation. |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
283 |
throw shc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 284 |
"No expected EC server cert for ECDH client key exchange"); |
285 |
} |
|
286 |
||
287 |
PrivateKey privateKey = x509Possession.popPrivateKey; |
|
288 |
if (!privateKey.getAlgorithm().equals("EC")) { |
|
289 |
// unlikely, have been checked during cipher suite negotiation. |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
290 |
throw shc.conContext.fatal(Alert.ILLEGAL_PARAMETER, |
50768 | 291 |
"Not EC server cert for ECDH client key exchange"); |
292 |
} |
|
293 |
||
294 |
ECParameterSpec params = ((ECPrivateKey)privateKey).getParams(); |
|
295 |
NamedGroup namedGroup = NamedGroup.valueOf(params); |
|
296 |
if (namedGroup == null) { |
|
297 |
// unlikely, have been checked during cipher suite negotiation. |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
298 |
throw shc.conContext.fatal(Alert.ILLEGAL_PARAMETER, |
50768 | 299 |
"Unsupported EC server cert for ECDH client key exchange"); |
300 |
} |
|
2 | 301 |
|
50768 | 302 |
SSLKeyExchange ke = SSLKeyExchange.valueOf( |
303 |
shc.negotiatedCipherSuite.keyExchange, |
|
304 |
shc.negotiatedProtocol); |
|
305 |
if (ke == null) { |
|
306 |
// unlikely |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
307 |
throw shc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 308 |
"Not supported key exchange type"); |
309 |
} |
|
310 |
||
311 |
// parse the handshake message |
|
312 |
ECDHClientKeyExchangeMessage cke = |
|
313 |
new ECDHClientKeyExchangeMessage(shc, message); |
|
314 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
315 |
SSLLogger.fine( |
|
316 |
"Consuming ECDH ClientKeyExchange handshake message", cke); |
|
317 |
} |
|
318 |
||
319 |
// create the credentials |
|
320 |
try { |
|
321 |
ECPoint point = |
|
322 |
JsseJce.decodePoint(cke.encodedPoint, params.getCurve()); |
|
323 |
ECPublicKeySpec spec = new ECPublicKeySpec(point, params); |
|
324 |
||
325 |
KeyFactory kf = JsseJce.getKeyFactory("EC"); |
|
326 |
ECPublicKey peerPublicKey = |
|
327 |
(ECPublicKey)kf.generatePublic(spec); |
|
328 |
||
329 |
// check constraints of peer ECPublicKey |
|
330 |
if (!shc.algorithmConstraints.permits( |
|
331 |
EnumSet.of(CryptoPrimitive.KEY_AGREEMENT), |
|
332 |
peerPublicKey)) { |
|
333 |
throw new SSLHandshakeException( |
|
334 |
"ECPublicKey does not comply to algorithm constraints"); |
|
335 |
} |
|
336 |
||
337 |
shc.handshakeCredentials.add(new ECDHECredentials( |
|
338 |
peerPublicKey, namedGroup)); |
|
339 |
} catch (GeneralSecurityException | java.io.IOException e) { |
|
340 |
throw (SSLHandshakeException)(new SSLHandshakeException( |
|
341 |
"Could not generate ECPublicKey").initCause(e)); |
|
342 |
} |
|
343 |
||
344 |
// update the states |
|
345 |
SSLKeyDerivation masterKD = ke.createKeyDerivation(shc); |
|
346 |
SecretKey masterSecret = |
|
347 |
masterKD.deriveKey("MasterSecret", null); |
|
348 |
shc.handshakeSession.setMasterSecret(masterSecret); |
|
349 |
||
350 |
SSLTrafficKeyDerivation kd = |
|
351 |
SSLTrafficKeyDerivation.valueOf(shc.negotiatedProtocol); |
|
352 |
if (kd == null) { |
|
353 |
// unlikely |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
354 |
throw shc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 355 |
"Not supported key derivation: " + shc.negotiatedProtocol); |
356 |
} else { |
|
357 |
shc.handshakeKeyDerivation = |
|
358 |
kd.createKeyDerivation(shc, masterSecret); |
|
359 |
} |
|
360 |
} |
|
2 | 361 |
} |
362 |
||
50768 | 363 |
/** |
364 |
* The ECDHE "ClientKeyExchange" handshake message producer. |
|
365 |
*/ |
|
366 |
private static final |
|
367 |
class ECDHEClientKeyExchangeProducer implements HandshakeProducer { |
|
368 |
// Prevent instantiation of this class. |
|
369 |
private ECDHEClientKeyExchangeProducer() { |
|
370 |
// blank |
|
371 |
} |
|
372 |
||
373 |
@Override |
|
374 |
public byte[] produce(ConnectionContext context, |
|
375 |
HandshakeMessage message) throws IOException { |
|
376 |
// The producing happens in client side only. |
|
377 |
ClientHandshakeContext chc = (ClientHandshakeContext)context; |
|
378 |
||
379 |
ECDHECredentials ecdheCredentials = null; |
|
380 |
for (SSLCredentials cd : chc.handshakeCredentials) { |
|
381 |
if (cd instanceof ECDHECredentials) { |
|
382 |
ecdheCredentials = (ECDHECredentials)cd; |
|
383 |
break; |
|
384 |
} |
|
385 |
} |
|
386 |
||
387 |
if (ecdheCredentials == null) { |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
388 |
throw chc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 389 |
"No ECDHE credentials negotiated for client key exchange"); |
390 |
} |
|
391 |
||
392 |
ECDHEPossession ecdhePossession = new ECDHEPossession( |
|
393 |
ecdheCredentials, chc.sslContext.getSecureRandom()); |
|
394 |
chc.handshakePossessions.add(ecdhePossession); |
|
395 |
ECDHClientKeyExchangeMessage cke = |
|
396 |
new ECDHClientKeyExchangeMessage( |
|
397 |
chc, ecdhePossession.publicKey); |
|
398 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
399 |
SSLLogger.fine( |
|
400 |
"Produced ECDHE ClientKeyExchange handshake message", cke); |
|
401 |
} |
|
402 |
||
403 |
// Output the handshake message. |
|
404 |
cke.write(chc.handshakeOutput); |
|
405 |
chc.handshakeOutput.flush(); |
|
406 |
||
407 |
// update the states |
|
408 |
SSLKeyExchange ke = SSLKeyExchange.valueOf( |
|
409 |
chc.negotiatedCipherSuite.keyExchange, |
|
410 |
chc.negotiatedProtocol); |
|
411 |
if (ke == null) { |
|
412 |
// unlikely |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
413 |
throw chc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 414 |
"Not supported key exchange type"); |
415 |
} else { |
|
416 |
SSLKeyDerivation masterKD = ke.createKeyDerivation(chc); |
|
417 |
SecretKey masterSecret = |
|
418 |
masterKD.deriveKey("MasterSecret", null); |
|
419 |
chc.handshakeSession.setMasterSecret(masterSecret); |
|
420 |
||
421 |
SSLTrafficKeyDerivation kd = |
|
422 |
SSLTrafficKeyDerivation.valueOf(chc.negotiatedProtocol); |
|
423 |
if (kd == null) { |
|
424 |
// unlikely |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
425 |
throw chc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 426 |
"Not supported key derivation: " + |
427 |
chc.negotiatedProtocol); |
|
428 |
} else { |
|
429 |
chc.handshakeKeyDerivation = |
|
430 |
kd.createKeyDerivation(chc, masterSecret); |
|
431 |
} |
|
432 |
} |
|
433 |
||
434 |
// The handshake message has been delivered. |
|
435 |
return null; |
|
436 |
} |
|
2 | 437 |
} |
438 |
||
50768 | 439 |
/** |
440 |
* The ECDHE "ClientKeyExchange" handshake message consumer. |
|
441 |
*/ |
|
442 |
private static final |
|
443 |
class ECDHEClientKeyExchangeConsumer implements SSLConsumer { |
|
444 |
// Prevent instantiation of this class. |
|
445 |
private ECDHEClientKeyExchangeConsumer() { |
|
446 |
// blank |
|
447 |
} |
|
448 |
||
449 |
@Override |
|
450 |
public void consume(ConnectionContext context, |
|
451 |
ByteBuffer message) throws IOException { |
|
452 |
// The consuming happens in server side only. |
|
453 |
ServerHandshakeContext shc = (ServerHandshakeContext)context; |
|
454 |
||
455 |
ECDHEPossession ecdhePossession = null; |
|
456 |
for (SSLPossession possession : shc.handshakePossessions) { |
|
457 |
if (possession instanceof ECDHEPossession) { |
|
458 |
ecdhePossession = (ECDHEPossession)possession; |
|
459 |
break; |
|
460 |
} |
|
461 |
} |
|
462 |
if (ecdhePossession == null) { |
|
463 |
// unlikely |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
464 |
throw shc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 465 |
"No expected ECDHE possessions for client key exchange"); |
466 |
} |
|
467 |
||
468 |
ECParameterSpec params = ecdhePossession.publicKey.getParams(); |
|
469 |
NamedGroup namedGroup = NamedGroup.valueOf(params); |
|
470 |
if (namedGroup == null) { |
|
471 |
// unlikely, have been checked during cipher suite negotiation. |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
472 |
throw shc.conContext.fatal(Alert.ILLEGAL_PARAMETER, |
50768 | 473 |
"Unsupported EC server cert for ECDHE client key exchange"); |
474 |
} |
|
475 |
||
476 |
SSLKeyExchange ke = SSLKeyExchange.valueOf( |
|
477 |
shc.negotiatedCipherSuite.keyExchange, |
|
478 |
shc.negotiatedProtocol); |
|
479 |
if (ke == null) { |
|
480 |
// unlikely |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
481 |
throw shc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 482 |
"Not supported key exchange type"); |
483 |
} |
|
2 | 484 |
|
50768 | 485 |
// parse the handshake message |
486 |
ECDHClientKeyExchangeMessage cke = |
|
487 |
new ECDHClientKeyExchangeMessage(shc, message); |
|
488 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
489 |
SSLLogger.fine( |
|
490 |
"Consuming ECDHE ClientKeyExchange handshake message", cke); |
|
491 |
} |
|
492 |
||
493 |
// create the credentials |
|
494 |
try { |
|
495 |
ECPoint point = |
|
496 |
JsseJce.decodePoint(cke.encodedPoint, params.getCurve()); |
|
497 |
ECPublicKeySpec spec = new ECPublicKeySpec(point, params); |
|
498 |
||
499 |
KeyFactory kf = JsseJce.getKeyFactory("EC"); |
|
500 |
ECPublicKey peerPublicKey = |
|
501 |
(ECPublicKey)kf.generatePublic(spec); |
|
2 | 502 |
|
50768 | 503 |
// check constraints of peer ECPublicKey |
504 |
if (!shc.algorithmConstraints.permits( |
|
505 |
EnumSet.of(CryptoPrimitive.KEY_AGREEMENT), |
|
506 |
peerPublicKey)) { |
|
507 |
throw new SSLHandshakeException( |
|
508 |
"ECPublicKey does not comply to algorithm constraints"); |
|
509 |
} |
|
510 |
||
511 |
shc.handshakeCredentials.add(new ECDHECredentials( |
|
512 |
peerPublicKey, namedGroup)); |
|
513 |
} catch (GeneralSecurityException | java.io.IOException e) { |
|
514 |
throw (SSLHandshakeException)(new SSLHandshakeException( |
|
515 |
"Could not generate ECPublicKey").initCause(e)); |
|
516 |
} |
|
517 |
||
518 |
// update the states |
|
519 |
SSLKeyDerivation masterKD = ke.createKeyDerivation(shc); |
|
520 |
SecretKey masterSecret = |
|
521 |
masterKD.deriveKey("MasterSecret", null); |
|
522 |
shc.handshakeSession.setMasterSecret(masterSecret); |
|
523 |
||
524 |
SSLTrafficKeyDerivation kd = |
|
525 |
SSLTrafficKeyDerivation.valueOf(shc.negotiatedProtocol); |
|
526 |
if (kd == null) { |
|
527 |
// unlikely |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
528 |
throw shc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 529 |
"Not supported key derivation: " + shc.negotiatedProtocol); |
530 |
} else { |
|
531 |
shc.handshakeKeyDerivation = |
|
532 |
kd.createKeyDerivation(shc, masterSecret); |
|
533 |
} |
|
2 | 534 |
} |
535 |
} |
|
536 |
} |