/*
* Copyright (c) 2015, 2019, 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.security.ssl;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.X509ExtendedKeyManager;
import javax.security.auth.x500.X500Principal;
import sun.security.ssl.CipherSuite.KeyExchange;
import sun.security.ssl.SSLHandshake.HandshakeMessage;
import sun.security.ssl.X509Authentication.X509Possession;
/**
* Pack of the CertificateRequest handshake message.
*/
final class CertificateRequest {
static final SSLConsumer t10HandshakeConsumer =
new T10CertificateRequestConsumer();
static final HandshakeProducer t10HandshakeProducer =
new T10CertificateRequestProducer();
static final SSLConsumer t12HandshakeConsumer =
new T12CertificateRequestConsumer();
static final HandshakeProducer t12HandshakeProducer =
new T12CertificateRequestProducer();
static final SSLConsumer t13HandshakeConsumer =
new T13CertificateRequestConsumer();
static final HandshakeProducer t13HandshakeProducer =
new T13CertificateRequestProducer();
// TLS 1.2 and prior versions
private static enum ClientCertificateType {
// RFC 2246
RSA_SIGN ((byte)0x01, "rsa_sign", "RSA", true),
DSS_SIGN ((byte)0x02, "dss_sign", "DSA", true),
RSA_FIXED_DH ((byte)0x03, "rsa_fixed_dh"),
DSS_FIXED_DH ((byte)0x04, "dss_fixed_dh"),
// RFC 4346
RSA_EPHEMERAL_DH ((byte)0x05, "rsa_ephemeral_dh"),
DSS_EPHEMERAL_DH ((byte)0x06, "dss_ephemeral_dh"),
FORTEZZA_DMS ((byte)0x14, "fortezza_dms"),
// RFC 4492
ECDSA_SIGN ((byte)0x40, "ecdsa_sign",
"EC", JsseJce.isEcAvailable()),
RSA_FIXED_ECDH ((byte)0x41, "rsa_fixed_ecdh"),
ECDSA_FIXED_ECDH ((byte)0x42, "ecdsa_fixed_ecdh");
private static final byte[] CERT_TYPES =
JsseJce.isEcAvailable() ? new byte[] {
ECDSA_SIGN.id,
RSA_SIGN.id,
DSS_SIGN.id
} : new byte[] {
RSA_SIGN.id,
DSS_SIGN.id
};
final byte id;
final String name;
final String keyAlgorithm;
final boolean isAvailable;
private ClientCertificateType(byte id, String name) {
this(id, name, null, false);
}
private ClientCertificateType(byte id, String name,
String keyAlgorithm, boolean isAvailable) {
this.id = id;
this.name = name;
this.keyAlgorithm = keyAlgorithm;
this.isAvailable = isAvailable;
}
private static String nameOf(byte id) {
for (ClientCertificateType cct : ClientCertificateType.values()) {
if (cct.id == id) {
return cct.name;
}
}
return "UNDEFINED-CLIENT-CERTIFICATE-TYPE(" + (int)id + ")";
}
private static ClientCertificateType valueOf(byte id) {
for (ClientCertificateType cct : ClientCertificateType.values()) {
if (cct.id == id) {
return cct;
}
}
return null;
}
private static String[] getKeyTypes(byte[] ids) {
ArrayList<String> keyTypes = new ArrayList<>(3);
for (byte id : ids) {
ClientCertificateType cct = ClientCertificateType.valueOf(id);
if (cct.isAvailable) {
keyTypes.add(cct.keyAlgorithm);
}
}
return keyTypes.toArray(new String[0]);
}
}
/**
* The "CertificateRequest" handshake message for SSL 3.0 and TLS 1.0/1.1.
*/
static final class T10CertificateRequestMessage extends HandshakeMessage {
final byte[] types; // certificate types
final List<byte[]> authorities; // certificate authorities
T10CertificateRequestMessage(HandshakeContext handshakeContext,
X509Certificate[] trustedCerts, KeyExchange keyExchange) {
super(handshakeContext);
this.authorities = new ArrayList<>(trustedCerts.length);
for (X509Certificate cert : trustedCerts) {
X500Principal x500Principal = cert.getSubjectX500Principal();
authorities.add(x500Principal.getEncoded());
}
this.types = ClientCertificateType.CERT_TYPES;
}
T10CertificateRequestMessage(HandshakeContext handshakeContext,
ByteBuffer m) throws IOException {
super(handshakeContext);
// struct {
// ClientCertificateType certificate_types<1..2^8-1>;
// DistinguishedName certificate_authorities<0..2^16-1>;
// } CertificateRequest;
if (m.remaining() < 4) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Incorrect CertificateRequest message: no sufficient data");
}
this.types = Record.getBytes8(m);
int listLen = Record.getInt16(m);
if (listLen > m.remaining()) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Incorrect CertificateRequest message:no sufficient data");
}
if (listLen > 0) {
this.authorities = new LinkedList<>();
while (listLen > 0) {
// opaque DistinguishedName<1..2^16-1>;
byte[] encoded = Record.getBytes16(m);
listLen -= (2 + encoded.length);
authorities.add(encoded);
}
} else {
this.authorities = Collections.emptyList();
}
}
String[] getKeyTypes() {
return ClientCertificateType.getKeyTypes(types);
}
X500Principal[] getAuthorities() {
List<X500Principal> principals =
new ArrayList<>(authorities.size());
for (byte[] encoded : authorities) {
X500Principal principal = new X500Principal(encoded);
principals.add(principal);
}
return principals.toArray(new X500Principal[0]);
}
@Override
public SSLHandshake handshakeType() {
return SSLHandshake.CERTIFICATE_REQUEST;
}
@Override
public int messageLength() {
int len = 1 + types.length + 2;
for (byte[] encoded : authorities) {
len += encoded.length + 2;
}
return len;
}
@Override
public void send(HandshakeOutStream hos) throws IOException {
hos.putBytes8(types);
int listLen = 0;
for (byte[] encoded : authorities) {
listLen += encoded.length + 2;
}
hos.putInt16(listLen);
for (byte[] encoded : authorities) {
hos.putBytes16(encoded);
}
}
@Override
public String toString() {
MessageFormat messageFormat = new MessageFormat(
"\"CertificateRequest\": '{'\n" +
" \"certificate types\": {0}\n" +
" \"certificate authorities\": {1}\n" +
"'}'",
Locale.ENGLISH);
List<String> typeNames = new ArrayList<>(types.length);
for (byte type : types) {
typeNames.add(ClientCertificateType.nameOf(type));
}
List<String> authorityNames = new ArrayList<>(authorities.size());
for (byte[] encoded : authorities) {
X500Principal principal = new X500Principal(encoded);
authorityNames.add(principal.toString());
}
Object[] messageFields = {
typeNames,
authorityNames
};
return messageFormat.format(messageFields);
}
}
/**
* The "CertificateRequest" handshake message producer for SSL 3.0 and
* TLS 1.0/1.1.
*/
private static final
class T10CertificateRequestProducer implements HandshakeProducer {
// Prevent instantiation of this class.
private T10CertificateRequestProducer() {
// blank
}
@Override
public byte[] produce(ConnectionContext context,
HandshakeMessage message) throws IOException {
// The producing happens in server side only.
ServerHandshakeContext shc = (ServerHandshakeContext)context;
X509Certificate[] caCerts =
shc.sslContext.getX509TrustManager().getAcceptedIssuers();
T10CertificateRequestMessage crm = new T10CertificateRequestMessage(
shc, caCerts, shc.negotiatedCipherSuite.keyExchange);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Produced CertificateRequest handshake message", crm);
}
// Output the handshake message.
crm.write(shc.handshakeOutput);
shc.handshakeOutput.flush();
//
// update
//
shc.handshakeConsumers.put(SSLHandshake.CERTIFICATE.id,
SSLHandshake.CERTIFICATE);
shc.handshakeConsumers.put(SSLHandshake.CERTIFICATE_VERIFY.id,
SSLHandshake.CERTIFICATE_VERIFY);
// The handshake message has been delivered.
return null;
}
}
/**
* The "CertificateRequest" handshake message consumer for SSL 3.0 and
* TLS 1.0/1.1.
*/
private static final
class T10CertificateRequestConsumer implements SSLConsumer {
// Prevent instantiation of this class.
private T10CertificateRequestConsumer() {
// blank
}
@Override
public void consume(ConnectionContext context,
ByteBuffer message) throws IOException {
// The consuming happens in client side only.
ClientHandshakeContext chc = (ClientHandshakeContext)context;
// clean up this consumer
chc.handshakeConsumers.remove(SSLHandshake.CERTIFICATE_REQUEST.id);
SSLConsumer certStatCons = chc.handshakeConsumers.remove(
SSLHandshake.CERTIFICATE_STATUS.id);
if (certStatCons != null) {
// Stapling was active but no certificate status message
// was sent. We need to run the absence handler which will
// check the certificate chain.
CertificateStatus.handshakeAbsence.absent(context, null);
}
T10CertificateRequestMessage crm =
new T10CertificateRequestMessage(chc, message);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Consuming CertificateRequest handshake message", crm);
}
//
// validate
//
// blank
//
// update
//
// An empty client Certificate handshake message may be allow.
chc.handshakeProducers.put(SSLHandshake.CERTIFICATE.id,
SSLHandshake.CERTIFICATE);
X509ExtendedKeyManager km = chc.sslContext.getX509KeyManager();
String clientAlias = null;
if (chc.conContext.transport instanceof SSLSocketImpl) {
clientAlias = km.chooseClientAlias(crm.getKeyTypes(),
crm.getAuthorities(), (SSLSocket)chc.conContext.transport);
} else if (chc.conContext.transport instanceof SSLEngineImpl) {
clientAlias = km.chooseEngineClientAlias(crm.getKeyTypes(),
crm.getAuthorities(), (SSLEngine)chc.conContext.transport);
}
if (clientAlias == null) {
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.warning("No available client authentication");
}
return;
}
PrivateKey clientPrivateKey = km.getPrivateKey(clientAlias);
if (clientPrivateKey == null) {
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.warning("No available client private key");
}
return;
}
X509Certificate[] clientCerts = km.getCertificateChain(clientAlias);
if ((clientCerts == null) || (clientCerts.length == 0)) {
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.warning("No available client certificate");
}
return;
}
chc.handshakePossessions.add(
new X509Possession(clientPrivateKey, clientCerts));
chc.handshakeProducers.put(SSLHandshake.CERTIFICATE_VERIFY.id,
SSLHandshake.CERTIFICATE_VERIFY);
}
}
/**
* The CertificateRequest handshake message for TLS 1.2.
*/
static final class T12CertificateRequestMessage extends HandshakeMessage {
final byte[] types; // certificate types
final int[] algorithmIds; // supported signature algorithms
final List<byte[]> authorities; // certificate authorities
T12CertificateRequestMessage(HandshakeContext handshakeContext,
X509Certificate[] trustedCerts, KeyExchange keyExchange,
List<SignatureScheme> signatureSchemes) throws IOException {
super(handshakeContext);
this.types = ClientCertificateType.CERT_TYPES;
if (signatureSchemes == null || signatureSchemes.isEmpty()) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"No signature algorithms specified for " +
"CertificateRequest hanshake message");
}
this.algorithmIds = new int[signatureSchemes.size()];
int i = 0;
for (SignatureScheme scheme : signatureSchemes) {
algorithmIds[i++] = scheme.id;
}
this.authorities = new ArrayList<>(trustedCerts.length);
for (X509Certificate cert : trustedCerts) {
X500Principal x500Principal = cert.getSubjectX500Principal();
authorities.add(x500Principal.getEncoded());
}
}
T12CertificateRequestMessage(HandshakeContext handshakeContext,
ByteBuffer m) throws IOException {
super(handshakeContext);
// struct {
// ClientCertificateType certificate_types<1..2^8-1>;
// SignatureAndHashAlgorithm
// supported_signature_algorithms<2..2^16-2>;
// DistinguishedName certificate_authorities<0..2^16-1>;
// } CertificateRequest;
// certificate_authorities
if (m.remaining() < 8) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Invalid CertificateRequest handshake message: " +
"no sufficient data");
}
this.types = Record.getBytes8(m);
// supported_signature_algorithms
if (m.remaining() < 6) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Invalid CertificateRequest handshake message: " +
"no sufficient data");
}
byte[] algs = Record.getBytes16(m);
if (algs == null || algs.length == 0 || (algs.length & 0x01) != 0) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Invalid CertificateRequest handshake message: " +
"incomplete signature algorithms");
}
this.algorithmIds = new int[(algs.length >> 1)];
for (int i = 0, j = 0; i < algs.length;) {
byte hash = algs[i++];
byte sign = algs[i++];
algorithmIds[j++] = ((hash & 0xFF) << 8) | (sign & 0xFF);
}
// certificate_authorities
if (m.remaining() < 2) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Invalid CertificateRequest handshake message: " +
"no sufficient data");
}
int listLen = Record.getInt16(m);
if (listLen > m.remaining()) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Invalid CertificateRequest message: no sufficient data");
}
if (listLen > 0) {
this.authorities = new LinkedList<>();
while (listLen > 0) {
// opaque DistinguishedName<1..2^16-1>;
byte[] encoded = Record.getBytes16(m);
listLen -= (2 + encoded.length);
authorities.add(encoded);
}
} else {
this.authorities = Collections.emptyList();
}
}
String[] getKeyTypes() {
return ClientCertificateType.getKeyTypes(types);
}
X500Principal[] getAuthorities() {
List<X500Principal> principals =
new ArrayList<>(authorities.size());
for (byte[] encoded : authorities) {
X500Principal principal = new X500Principal(encoded);
principals.add(principal);
}
return principals.toArray(new X500Principal[0]);
}
@Override
public SSLHandshake handshakeType() {
return SSLHandshake.CERTIFICATE_REQUEST;
}
@Override
public int messageLength() {
int len = 1 + types.length + 2 + (algorithmIds.length << 1) + 2;
for (byte[] encoded : authorities) {
len += encoded.length + 2;
}
return len;
}
@Override
public void send(HandshakeOutStream hos) throws IOException {
hos.putBytes8(types);
int listLen = 0;
for (byte[] encoded : authorities) {
listLen += encoded.length + 2;
}
hos.putInt16(algorithmIds.length << 1);
for (int algorithmId : algorithmIds) {
hos.putInt16(algorithmId);
}
hos.putInt16(listLen);
for (byte[] encoded : authorities) {
hos.putBytes16(encoded);
}
}
@Override
public String toString() {
MessageFormat messageFormat = new MessageFormat(
"\"CertificateRequest\": '{'\n" +
" \"certificate types\": {0}\n" +
" \"supported signature algorithms\": {1}\n" +
" \"certificate authorities\": {2}\n" +
"'}'",
Locale.ENGLISH);
List<String> typeNames = new ArrayList<>(types.length);
for (byte type : types) {
typeNames.add(ClientCertificateType.nameOf(type));
}
List<String> algorithmNames = new ArrayList<>(algorithmIds.length);
for (int algorithmId : algorithmIds) {
algorithmNames.add(SignatureScheme.nameOf(algorithmId));
}
List<String> authorityNames = new ArrayList<>(authorities.size());
for (byte[] encoded : authorities) {
X500Principal principal = new X500Principal(encoded);
authorityNames.add(principal.toString());
}
Object[] messageFields = {
typeNames,
algorithmNames,
authorityNames
};
return messageFormat.format(messageFields);
}
}
/**
* The "CertificateRequest" handshake message producer for TLS 1.2.
*/
private static final
class T12CertificateRequestProducer implements HandshakeProducer {
// Prevent instantiation of this class.
private T12CertificateRequestProducer() {
// blank
}
@Override
public byte[] produce(ConnectionContext context,
HandshakeMessage message) throws IOException {
// The producing happens in server side only.
ServerHandshakeContext shc = (ServerHandshakeContext)context;
if (shc.localSupportedSignAlgs == null) {
shc.localSupportedSignAlgs =
SignatureScheme.getSupportedAlgorithms(
shc.algorithmConstraints, shc.activeProtocols);
}
if (shc.localSupportedSignAlgs == null ||
shc.localSupportedSignAlgs.isEmpty()) {
throw shc.conContext.fatal(Alert.HANDSHAKE_FAILURE,
"No supported signature algorithm");
}
X509Certificate[] caCerts =
shc.sslContext.getX509TrustManager().getAcceptedIssuers();
T12CertificateRequestMessage crm = new T12CertificateRequestMessage(
shc, caCerts, shc.negotiatedCipherSuite.keyExchange,
shc.localSupportedSignAlgs);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Produced CertificateRequest handshake message", crm);
}
// Output the handshake message.
crm.write(shc.handshakeOutput);
shc.handshakeOutput.flush();
//
// update
//
shc.handshakeConsumers.put(SSLHandshake.CERTIFICATE.id,
SSLHandshake.CERTIFICATE);
shc.handshakeConsumers.put(SSLHandshake.CERTIFICATE_VERIFY.id,
SSLHandshake.CERTIFICATE_VERIFY);
// The handshake message has been delivered.
return null;
}
}
/**
* The "CertificateRequest" handshake message consumer for TLS 1.2.
*/
private static final
class T12CertificateRequestConsumer implements SSLConsumer {
// Prevent instantiation of this class.
private T12CertificateRequestConsumer() {
// blank
}
@Override
public void consume(ConnectionContext context,
ByteBuffer message) throws IOException {
// The consuming happens in client side only.
ClientHandshakeContext chc = (ClientHandshakeContext)context;
// clean up this consumer
chc.handshakeConsumers.remove(SSLHandshake.CERTIFICATE_REQUEST.id);
SSLConsumer certStatCons = chc.handshakeConsumers.remove(
SSLHandshake.CERTIFICATE_STATUS.id);
if (certStatCons != null) {
// Stapling was active but no certificate status message
// was sent. We need to run the absence handler which will
// check the certificate chain.
CertificateStatus.handshakeAbsence.absent(context, null);
}
T12CertificateRequestMessage crm =
new T12CertificateRequestMessage(chc, message);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Consuming CertificateRequest handshake message", crm);
}
//
// validate
//
// blank
//
// update
//
// An empty client Certificate handshake message may be allow.
chc.handshakeProducers.put(SSLHandshake.CERTIFICATE.id,
SSLHandshake.CERTIFICATE);
List<SignatureScheme> sss = new LinkedList<>();
for (int id : crm.algorithmIds) {
SignatureScheme ss = SignatureScheme.valueOf(id);
if (ss != null) {
sss.add(ss);
}
}
chc.peerRequestedSignatureSchemes = sss;
chc.peerRequestedCertSignSchemes = sss; // use the same schemes
chc.handshakeSession.setPeerSupportedSignatureAlgorithms(sss);
chc.peerSupportedAuthorities = crm.getAuthorities();
// For TLS 1.2, we no longer use the certificate_types field
// from the CertificateRequest message to directly determine
// the SSLPossession. Instead, the choosePossession method
// will use the accepted signature schemes in the message to
// determine the set of acceptable certificate types to select from.
SSLPossession pos = choosePossession(chc);
if (pos == null) {
return;
}
chc.handshakePossessions.add(pos);
chc.handshakeProducers.put(SSLHandshake.CERTIFICATE_VERIFY.id,
SSLHandshake.CERTIFICATE_VERIFY);
}
private static SSLPossession choosePossession(HandshakeContext hc)
throws IOException {
if (hc.peerRequestedCertSignSchemes == null ||
hc.peerRequestedCertSignSchemes.isEmpty()) {
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.warning("No signature and hash algorithms " +
"in CertificateRequest");
}
return null;
}
Collection<String> checkedKeyTypes = new HashSet<>();
for (SignatureScheme ss : hc.peerRequestedCertSignSchemes) {
if (checkedKeyTypes.contains(ss.keyAlgorithm)) {
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.warning(
"Unsupported authentication scheme: " + ss.name);
}
continue;
}
// Don't select a signature scheme unless we will be able to
// produce a CertificateVerify message later
if (SignatureScheme.getPreferableAlgorithm(
hc.algorithmConstraints,
hc.peerRequestedSignatureSchemes,
ss, hc.negotiatedProtocol) == null) {
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.warning(
"Unable to produce CertificateVerify for " +
"signature scheme: " + ss.name);
}
checkedKeyTypes.add(ss.keyAlgorithm);
continue;
}
SSLAuthentication ka = X509Authentication.valueOf(ss);
if (ka == null) {
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.warning(
"Unsupported authentication scheme: " + ss.name);
}
checkedKeyTypes.add(ss.keyAlgorithm);
continue;
}
SSLPossession pos = ka.createPossession(hc);
if (pos == null) {
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.warning(
"Unavailable authentication scheme: " + ss.name);
}
continue;
}
return pos;
}
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.warning("No available authentication scheme");
}
return null;
}
}
/**
* The CertificateRequest handshake message for TLS 1.3.
*/
static final class T13CertificateRequestMessage extends HandshakeMessage {
private final byte[] requestContext;
private final SSLExtensions extensions;
T13CertificateRequestMessage(
HandshakeContext handshakeContext) throws IOException {
super(handshakeContext);
this.requestContext = new byte[0];
this.extensions = new SSLExtensions(this);
}
T13CertificateRequestMessage(HandshakeContext handshakeContext,
ByteBuffer m) throws IOException {
super(handshakeContext);
// struct {
// opaque certificate_request_context<0..2^8-1>;
// Extension extensions<2..2^16-1>;
// } CertificateRequest;
if (m.remaining() < 5) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Invalid CertificateRequest handshake message: " +
"no sufficient data");
}
this.requestContext = Record.getBytes8(m);
if (m.remaining() < 4) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Invalid CertificateRequest handshake message: " +
"no sufficient extensions data");
}
SSLExtension[] enabledExtensions =
handshakeContext.sslConfig.getEnabledExtensions(
SSLHandshake.CERTIFICATE_REQUEST);
this.extensions = new SSLExtensions(this, m, enabledExtensions);
}
@Override
SSLHandshake handshakeType() {
return SSLHandshake.CERTIFICATE_REQUEST;
}
@Override
int messageLength() {
// In TLS 1.3, use of certain extensions is mandatory.
return 1 + requestContext.length + extensions.length();
}
@Override
void send(HandshakeOutStream hos) throws IOException {
hos.putBytes8(requestContext);
// In TLS 1.3, use of certain extensions is mandatory.
extensions.send(hos);
}
@Override
public String toString() {
MessageFormat messageFormat = new MessageFormat(
"\"CertificateRequest\": '{'\n" +
" \"certificate_request_context\": \"{0}\",\n" +
" \"extensions\": [\n" +
"{1}\n" +
" ]\n" +
"'}'",
Locale.ENGLISH);
Object[] messageFields = {
Utilities.toHexString(requestContext),
Utilities.indent(Utilities.indent(extensions.toString()))
};
return messageFormat.format(messageFields);
}
}
/**
* The "CertificateRequest" handshake message producer for TLS 1.3.
*/
private static final
class T13CertificateRequestProducer implements HandshakeProducer {
// Prevent instantiation of this class.
private T13CertificateRequestProducer() {
// blank
}
@Override
public byte[] produce(ConnectionContext context,
HandshakeMessage message) throws IOException {
// The producing happens in server side only.
ServerHandshakeContext shc = (ServerHandshakeContext)context;
T13CertificateRequestMessage crm =
new T13CertificateRequestMessage(shc);
// Produce extensions for CertificateRequest handshake message.
SSLExtension[] extTypes = shc.sslConfig.getEnabledExtensions(
SSLHandshake.CERTIFICATE_REQUEST, shc.negotiatedProtocol);
crm.extensions.produce(shc, extTypes);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine("Produced CertificateRequest message", crm);
}
// Output the handshake message.
crm.write(shc.handshakeOutput);
shc.handshakeOutput.flush();
//
// update
//
shc.certRequestContext = crm.requestContext.clone();
shc.handshakeConsumers.put(SSLHandshake.CERTIFICATE.id,
SSLHandshake.CERTIFICATE);
shc.handshakeConsumers.put(SSLHandshake.CERTIFICATE_VERIFY.id,
SSLHandshake.CERTIFICATE_VERIFY);
// The handshake message has been delivered.
return null;
}
}
/**
* The "CertificateRequest" handshake message consumer for TLS 1.3.
*/
private static final
class T13CertificateRequestConsumer implements SSLConsumer {
// Prevent instantiation of this class.
private T13CertificateRequestConsumer() {
// blank
}
@Override
public void consume(ConnectionContext context,
ByteBuffer message) throws IOException {
// The consuming happens in client side only.
ClientHandshakeContext chc = (ClientHandshakeContext)context;
// clean up this consumer
chc.handshakeConsumers.remove(SSLHandshake.CERTIFICATE_REQUEST.id);
T13CertificateRequestMessage crm =
new T13CertificateRequestMessage(chc, message);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Consuming CertificateRequest handshake message", crm);
}
//
// validate
//
SSLExtension[] extTypes = chc.sslConfig.getEnabledExtensions(
SSLHandshake.CERTIFICATE_REQUEST);
crm.extensions.consumeOnLoad(chc, extTypes);
//
// update
//
crm.extensions.consumeOnTrade(chc, extTypes);
//
// produce
//
chc.certRequestContext = crm.requestContext.clone();
chc.handshakeProducers.put(SSLHandshake.CERTIFICATE.id,
SSLHandshake.CERTIFICATE);
chc.handshakeProducers.put(SSLHandshake.CERTIFICATE_VERIFY.id,
SSLHandshake.CERTIFICATE_VERIFY);
}
}
}