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/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package org.openeuler.sun.security.ssl;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.Signature;
import java.security.SignatureException;
import java.security.cert.CertificateEncodingException;
import java.security.cert.X509Certificate;
import java.text.MessageFormat;
import java.util.Locale;
import org.openeuler.sun.security.ssl.SSLHandshake.HandshakeMessage;
import org.openeuler.sun.security.ssl.GMX509Authentication.GMX509Credentials;
import org.openeuler.sun.security.ssl.GMX509Authentication.GMX509Possession;
import org.openeuler.sun.misc.HexDumpEncoder;
/**
* Pack of the ServerKeyExchange handshake message.
*/
final class ECCServerKeyExchange {
static final SSLConsumer eccHandshakeConsumer =
new ECCServerKeyExchangeConsumer();
static final HandshakeProducer eccHandshakeProducer =
new ECCServerKeyExchangeProducer();
/**
* The ECC ServerKeyExchange handshake message.
*
* Used for ECC only.
*/
private static final
class ECCServerKeyExchangeMessage extends HandshakeMessage {
// signature bytes, none-null as no anonymous ECC key exchange.
private final byte[] paramsSignature;
// TLSv1.2 + GM cipher needs to send SignatureScheme id.
private final boolean useExplicitSigAlgorithm;
// the signature algorithm used by this ServerKeyExchange message
private final SignatureScheme signatureScheme;
private ECCServerKeyExchangeMessage(HandshakeContext handshakeContext,
GMX509Possession gmx509Possession)
throws IOException {
super(handshakeContext);
// This happens in server side only.
ServerHandshakeContext shc =
(ServerHandshakeContext)handshakeContext;
this.useExplicitSigAlgorithm = shc.t12WithGMCipherSuite;
if (useExplicitSigAlgorithm) {
if (shc.peerRequestedSignatureSchemes == null ||
!shc.peerRequestedSignatureSchemes.contains(SignatureScheme.ECDSA_SM3)) {
throw shc.conContext.fatal(Alert.INTERNAL_ERROR,
"No supported signature algorithm");
}
this.signatureScheme = SignatureScheme.ECDSA_SM3;
} else {
this.signatureScheme = null;
}
byte[] signature;
try {
Signature signer = Signature.getInstance("SM3withSM2");
signer.initSign(gmx509Possession.popSignPrivateKey,
shc.sslContext.getSecureRandom());
updateSignature(signer,
shc.clientHelloRandom.randomBytes,
shc.serverHelloRandom.randomBytes,
gmx509Possession.popEncCerts[0]);
signature = signer.sign();
} catch (NoSuchAlgorithmException |
InvalidKeyException | SignatureException ex) {
throw shc.conContext.fatal(Alert.INTERNAL_ERROR,
"Failed to sign ECC parameters", ex);
}
this.paramsSignature = signature;
}
ECCServerKeyExchangeMessage(HandshakeContext handshakeContext,
ByteBuffer m) throws IOException {
super(handshakeContext);
// This happens in client side only.
ClientHandshakeContext chc =
(ClientHandshakeContext)handshakeContext;
GMX509Credentials gmx509Credentials = null;
for (SSLCredentials cd : chc.handshakeCredentials) {
if (cd instanceof GMX509Credentials) {
gmx509Credentials = (GMX509Credentials)cd;
break;
}
}
if (gmx509Credentials == null) {
throw chc.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"No ECC credentials negotiated for server key exchange");
}
this.useExplicitSigAlgorithm = chc.t12WithGMCipherSuite;
if (useExplicitSigAlgorithm) {
int ssid = Record.getInt16(m);
signatureScheme = SignatureScheme.valueOf(ssid);
// If the signatureScheme is null or signatureScheme is not ECDSA_SM3
if (signatureScheme == null || signatureScheme != SignatureScheme.ECDSA_SM3) {
throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE,
"Invalid signature algorithm (" + ssid +
") used in ECC ServerKeyExchange handshake message");
}
if (!chc.localSupportedSignAlgs.contains(signatureScheme)) {
throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE,
"Unsupported signature algorithm (" +
signatureScheme.name +
") used in ECC ServerKeyExchange handshake message");
}
}else {
signatureScheme = null;
}
this.paramsSignature = Record.getBytes16(m);
try {
Signature signer = Signature.getInstance("SM3withSM2");
signer.initVerify(gmx509Credentials.popSignPublicKey);
updateSignature(signer,
chc.clientHelloRandom.randomBytes,
chc.serverHelloRandom.randomBytes, gmx509Credentials.popEncCerts[0]);
if (!signer.verify(paramsSignature)) {
throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE,
"Invalid signature of ECC ServerKeyExchange message");
}
} catch (NoSuchAlgorithmException |
InvalidKeyException | SignatureException ex) {
throw chc.conContext.fatal(Alert.INTERNAL_ERROR,
"Failed to sign ECC parameters", ex);
}
}
@Override
SSLHandshake handshakeType() {
return SSLHandshake.SERVER_KEY_EXCHANGE;
}
@Override
int messageLength() {
int sigLen = 2 + this.paramsSignature.length;;
if (this.useExplicitSigAlgorithm) {
sigLen += SignatureScheme.sizeInRecord();
}
return sigLen;
}
@Override
void send(HandshakeOutStream hos) throws IOException {
if (this.useExplicitSigAlgorithm) {
hos.putInt16(signatureScheme.id);
}
hos.putBytes16(paramsSignature);
}
@Override
public String toString() {
if (useExplicitSigAlgorithm) {
MessageFormat messageFormat = new MessageFormat(
"\"ECDH ServerKeyExchange\": '{'\n" +
" \"digital signature\": '{'\n" +
" \"signature algorithm\": \"{0}\"\n" +
" \"signature\": '{'\n" +
"{1}\n" +
" '}',\n" +
" '}'\n" +
"'}'",
Locale.ENGLISH);
HexDumpEncoder hexEncoder = new HexDumpEncoder();
Object[] messageFields = {
signatureScheme.name,
Utilities.indent(
hexEncoder.encodeBuffer(paramsSignature), " ")
};
return messageFormat.format(messageFields);
} else {
MessageFormat messageFormat = new MessageFormat(
"\"ECC ServerKeyExchange\": '{'\n" +
" \"digital signature\": '{'\n" +
" \"signature\": '{'\n" +
"{0}\n" +
" '}',\n" +
" '}'\n" +
"'}'",
Locale.ENGLISH);
HexDumpEncoder hexEncoder = new HexDumpEncoder();
Object[] messageFields = {
Utilities.indent(
hexEncoder.encodeBuffer(paramsSignature), " ")
};
return messageFormat.format(messageFields);
}
}
/*
* Hash the nonces and the ECC cert.
*/
private void updateSignature(Signature signature,
byte[] clntNonce, byte[] svrNonce, X509Certificate enc) throws SignatureException {
signature.update(clntNonce);
signature.update(svrNonce);
byte[] encoded;
try {
encoded = enc.getEncoded();
} catch (CertificateEncodingException e) {
throw new SignatureException(e);
}
int len = encoded.length;
signature.update((byte)(len >> 16 & 0x0ff));
signature.update((byte)(len >> 8 & 0x0ff));
signature.update((byte)(len & 0x0ff));
signature.update(encoded);
}
}
/**
* The ECC "ServerKeyExchange" handshake message producer.
*/
private static final
class ECCServerKeyExchangeProducer implements HandshakeProducer {
// Prevent instantiation of this class.
private ECCServerKeyExchangeProducer() {
// blank
}
@Override
public byte[] produce(ConnectionContext context,
HandshakeMessage message) throws IOException {
// The producing happens in server side only.
ServerHandshakeContext shc = (ServerHandshakeContext)context;
GMX509Possession gmx509Possession = null;
for (SSLPossession possession : shc.handshakePossessions) {
if (possession instanceof GMX509Possession) {
gmx509Possession = (GMX509Possession)possession;
if (gmx509Possession != null) {
break;
}
}
}
if (gmx509Possession == null) {
// unlikely
throw shc.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"No ECC certificate negotiated for server key exchange");
}
ECCServerKeyExchangeMessage skem =
new ECCServerKeyExchangeMessage(
shc, gmx509Possession);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Produced ECC ServerKeyExchange handshake message", skem);
}
// Output the handshake message.
skem.write(shc.handshakeOutput);
shc.handshakeOutput.flush();
// The handshake message has been delivered.
return null;
}
}
/**
* The ECC "ServerKeyExchange" handshake message consumer.
*/
private static final
class ECCServerKeyExchangeConsumer implements SSLConsumer {
// Prevent instantiation of this class.
private ECCServerKeyExchangeConsumer() {
// blank
}
@Override
public void consume(ConnectionContext context,
ByteBuffer message) throws IOException {
// The consuming happens in client side only.
ClientHandshakeContext chc = (ClientHandshakeContext)context;
ECCServerKeyExchangeMessage skem =
new ECCServerKeyExchangeMessage(chc, message);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Consuming ECC ServerKeyExchange handshake message", skem);
}
//
// produce
//
// Need no new handshake message producers here.
}
}
}
