author | xuelei |
Wed, 06 Nov 2019 09:45:04 -0800 | |
changeset 58951 | d6e682e8fcc3 |
parent 57718 | a93b7b28f644 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.security.ssl; |
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import java.io.IOException; |
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import java.math.BigInteger; |
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import java.nio.ByteBuffer; |
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import java.security.CryptoPrimitive; |
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import java.security.GeneralSecurityException; |
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import java.security.InvalidAlgorithmParameterException; |
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import java.security.InvalidKeyException; |
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import java.security.Key; |
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import java.security.KeyFactory; |
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import java.security.NoSuchAlgorithmException; |
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import java.security.PrivateKey; |
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import java.security.PublicKey; |
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import java.security.Signature; |
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import java.security.SignatureException; |
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import java.text.MessageFormat; |
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import java.util.EnumSet; |
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import java.util.Locale; |
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import java.util.Map; |
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import javax.crypto.interfaces.DHPublicKey; |
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import javax.crypto.spec.DHParameterSpec; |
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import javax.crypto.spec.DHPublicKeySpec; |
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import sun.security.ssl.DHKeyExchange.DHECredentials; |
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import sun.security.ssl.DHKeyExchange.DHEPossession; |
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import sun.security.ssl.SSLHandshake.HandshakeMessage; |
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import sun.security.ssl.X509Authentication.X509Credentials; |
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import sun.security.ssl.X509Authentication.X509Possession; |
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import sun.security.util.HexDumpEncoder; |
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import sun.security.util.KeyUtil; |
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||
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/** |
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* Pack of the ServerKeyExchange handshake message. |
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*/ |
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final class DHServerKeyExchange { |
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static final SSLConsumer dhHandshakeConsumer = |
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new DHServerKeyExchangeConsumer(); |
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static final HandshakeProducer dhHandshakeProducer = |
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new DHServerKeyExchangeProducer(); |
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/** |
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* The DiffieHellman ServerKeyExchange handshake message. |
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*/ |
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private static final |
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class DHServerKeyExchangeMessage extends HandshakeMessage { |
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// public key encapsulated in this message |
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private final byte[] p; // 1 to 2^16 - 1 bytes |
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private final byte[] g; // 1 to 2^16 - 1 bytes |
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private final byte[] y; // 1 to 2^16 - 1 bytes |
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// the signature algorithm used by this ServerKeyExchange message |
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private final boolean useExplicitSigAlgorithm; |
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private final SignatureScheme signatureScheme; |
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// signature bytes, or null if anonymous |
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private final byte[] paramsSignature; |
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DHServerKeyExchangeMessage( |
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HandshakeContext handshakeContext) throws IOException { |
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super(handshakeContext); |
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// This happens in server side only. |
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ServerHandshakeContext shc = |
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(ServerHandshakeContext)handshakeContext; |
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DHEPossession dhePossession = null; |
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X509Possession x509Possession = null; |
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for (SSLPossession possession : shc.handshakePossessions) { |
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if (possession instanceof DHEPossession) { |
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dhePossession = (DHEPossession)possession; |
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if (x509Possession != null) { |
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break; |
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} |
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} else if (possession instanceof X509Possession) { |
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x509Possession = (X509Possession)possession; |
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if (dhePossession != null) { |
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break; |
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} |
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} |
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} |
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if (dhePossession == null) { |
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// unlikely |
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throw shc.conContext.fatal(Alert.ILLEGAL_PARAMETER, |
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"No DHE credentials negotiated for server key exchange"); |
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} |
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DHPublicKey publicKey = dhePossession.publicKey; |
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DHParameterSpec params = publicKey.getParams(); |
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this.p = Utilities.toByteArray(params.getP()); |
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this.g = Utilities.toByteArray(params.getG()); |
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this.y = Utilities.toByteArray(publicKey.getY()); |
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if (x509Possession == null) { |
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// anonymous, no authentication, no signature |
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paramsSignature = null; |
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signatureScheme = null; |
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useExplicitSigAlgorithm = false; |
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} else { |
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useExplicitSigAlgorithm = |
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shc.negotiatedProtocol.useTLS12PlusSpec(); |
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Signature signer = null; |
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if (useExplicitSigAlgorithm) { |
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Map.Entry<SignatureScheme, Signature> schemeAndSigner = |
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SignatureScheme.getSignerOfPreferableAlgorithm( |
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shc.algorithmConstraints, |
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shc.peerRequestedSignatureSchemes, |
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x509Possession, |
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shc.negotiatedProtocol); |
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if (schemeAndSigner == null) { |
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// Unlikely, the credentials generator should have |
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// selected the preferable signature algorithm properly. |
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throw shc.conContext.fatal(Alert.INTERNAL_ERROR, |
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"No supported signature algorithm for " + |
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x509Possession.popPrivateKey.getAlgorithm() + |
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" key"); |
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} else { |
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signatureScheme = schemeAndSigner.getKey(); |
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signer = schemeAndSigner.getValue(); |
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} |
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} else { |
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signatureScheme = null; |
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try { |
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signer = getSignature( |
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x509Possession.popPrivateKey.getAlgorithm(), |
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x509Possession.popPrivateKey); |
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} catch (NoSuchAlgorithmException | InvalidKeyException e) { |
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throw shc.conContext.fatal(Alert.INTERNAL_ERROR, |
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"Unsupported signature algorithm: " + |
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x509Possession.popPrivateKey.getAlgorithm(), e); |
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} |
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} |
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byte[] signature = null; |
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try { |
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updateSignature(signer, shc.clientHelloRandom.randomBytes, |
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shc.serverHelloRandom.randomBytes); |
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signature = signer.sign(); |
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} catch (SignatureException ex) { |
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throw shc.conContext.fatal(Alert.INTERNAL_ERROR, |
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"Failed to sign dhe parameters: " + |
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x509Possession.popPrivateKey.getAlgorithm(), ex); |
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} |
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paramsSignature = signature; |
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} |
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} |
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DHServerKeyExchangeMessage(HandshakeContext handshakeContext, |
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ByteBuffer m) throws IOException { |
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super(handshakeContext); |
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||
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// This happens in client side only. |
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ClientHandshakeContext chc = |
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(ClientHandshakeContext)handshakeContext; |
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this.p = Record.getBytes16(m); |
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this.g = Record.getBytes16(m); |
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this.y = Record.getBytes16(m); |
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try { |
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KeyUtil.validate(new DHPublicKeySpec( |
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new BigInteger(1, y), |
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new BigInteger(1, p), |
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new BigInteger(1, p))); |
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} catch (InvalidKeyException ike) { |
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throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
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"Invalid DH ServerKeyExchange: invalid parameters", ike); |
192 |
} |
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X509Credentials x509Credentials = null; |
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for (SSLCredentials cd : chc.handshakeCredentials) { |
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if (cd instanceof X509Credentials) { |
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x509Credentials = (X509Credentials)cd; |
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break; |
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} |
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} |
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||
202 |
if (x509Credentials == null) { |
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// anonymous, no authentication, no signature |
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if (m.hasRemaining()) { |
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throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
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"Invalid DH ServerKeyExchange: unknown extra data"); |
207 |
} |
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this.signatureScheme = null; |
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this.paramsSignature = null; |
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this.useExplicitSigAlgorithm = false; |
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return; |
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} |
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215 |
||
216 |
this.useExplicitSigAlgorithm = |
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chc.negotiatedProtocol.useTLS12PlusSpec(); |
|
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if (useExplicitSigAlgorithm) { |
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int ssid = Record.getInt16(m); |
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signatureScheme = SignatureScheme.valueOf(ssid); |
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if (signatureScheme == null) { |
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throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
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"Invalid signature algorithm (" + ssid + |
224 |
") used in DH ServerKeyExchange handshake message"); |
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} |
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226 |
||
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if (!chc.localSupportedSignAlgs.contains(signatureScheme)) { |
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throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
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"Unsupported signature algorithm (" + |
230 |
signatureScheme.name + |
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") used in DH ServerKeyExchange handshake message"); |
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} |
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} else { |
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this.signatureScheme = null; |
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235 |
} |
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236 |
||
237 |
// read and verify the signature |
|
238 |
this.paramsSignature = Record.getBytes16(m); |
|
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Signature signer; |
|
240 |
if (useExplicitSigAlgorithm) { |
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try { |
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signer = signatureScheme.getVerifier( |
50768 | 243 |
x509Credentials.popPublicKey); |
244 |
} catch (NoSuchAlgorithmException | InvalidKeyException | |
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InvalidAlgorithmParameterException nsae) { |
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throw chc.conContext.fatal(Alert.INTERNAL_ERROR, |
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"Unsupported signature algorithm: " + |
248 |
signatureScheme.name, nsae); |
|
249 |
} |
|
250 |
} else { |
|
251 |
try { |
|
252 |
signer = getSignature( |
|
253 |
x509Credentials.popPublicKey.getAlgorithm(), |
|
254 |
x509Credentials.popPublicKey); |
|
255 |
} catch (NoSuchAlgorithmException | InvalidKeyException e) { |
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throw chc.conContext.fatal(Alert.INTERNAL_ERROR, |
50768 | 257 |
"Unsupported signature algorithm: " + |
258 |
x509Credentials.popPublicKey.getAlgorithm(), e); |
|
259 |
} |
|
260 |
} |
|
261 |
||
262 |
try { |
|
263 |
updateSignature(signer, |
|
264 |
chc.clientHelloRandom.randomBytes, |
|
265 |
chc.serverHelloRandom.randomBytes); |
|
266 |
||
267 |
if (!signer.verify(paramsSignature)) { |
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throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
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"Invalid signature on DH ServerKeyExchange message"); |
270 |
} |
|
271 |
} catch (SignatureException ex) { |
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throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
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"Cannot verify DH ServerKeyExchange signature", ex); |
274 |
} |
|
275 |
} |
|
276 |
||
277 |
@Override |
|
278 |
public SSLHandshake handshakeType() { |
|
279 |
return SSLHandshake.SERVER_KEY_EXCHANGE; |
|
280 |
} |
|
281 |
||
282 |
@Override |
|
283 |
public int messageLength() { |
|
284 |
int sigLen = 0; |
|
285 |
if (paramsSignature != null) { |
|
286 |
sigLen = 2 + paramsSignature.length; |
|
287 |
if (useExplicitSigAlgorithm) { |
|
288 |
sigLen += SignatureScheme.sizeInRecord(); |
|
289 |
} |
|
290 |
} |
|
291 |
||
292 |
return 6 + p.length + g.length + y.length + sigLen; |
|
293 |
// 6: overhead for p, g, y values |
|
294 |
} |
|
295 |
||
296 |
@Override |
|
297 |
public void send(HandshakeOutStream hos) throws IOException { |
|
298 |
hos.putBytes16(p); |
|
299 |
hos.putBytes16(g); |
|
300 |
hos.putBytes16(y); |
|
301 |
||
302 |
if (paramsSignature != null) { |
|
303 |
if (useExplicitSigAlgorithm) { |
|
304 |
hos.putInt16(signatureScheme.id); |
|
305 |
} |
|
306 |
||
307 |
hos.putBytes16(paramsSignature); |
|
308 |
} |
|
309 |
} |
|
310 |
||
311 |
@Override |
|
312 |
public String toString() { |
|
313 |
if (paramsSignature == null) { // anonymous |
|
314 |
MessageFormat messageFormat = new MessageFormat( |
|
315 |
"\"DH ServerKeyExchange\": '{'\n" + |
|
316 |
" \"parameters\": '{'\n" + |
|
317 |
" \"dh_p\": '{'\n" + |
|
318 |
"{0}\n" + |
|
319 |
" '}',\n" + |
|
320 |
" \"dh_g\": '{'\n" + |
|
321 |
"{1}\n" + |
|
322 |
" '}',\n" + |
|
323 |
" \"dh_Ys\": '{'\n" + |
|
324 |
"{2}\n" + |
|
325 |
" '}',\n" + |
|
326 |
" '}'\n" + |
|
327 |
"'}'", |
|
328 |
Locale.ENGLISH); |
|
329 |
||
330 |
HexDumpEncoder hexEncoder = new HexDumpEncoder(); |
|
331 |
Object[] messageFields = { |
|
332 |
Utilities.indent( |
|
333 |
hexEncoder.encodeBuffer(p), " "), |
|
334 |
Utilities.indent( |
|
335 |
hexEncoder.encodeBuffer(g), " "), |
|
336 |
Utilities.indent( |
|
337 |
hexEncoder.encodeBuffer(y), " "), |
|
338 |
}; |
|
339 |
||
340 |
return messageFormat.format(messageFields); |
|
341 |
} |
|
342 |
||
343 |
if (useExplicitSigAlgorithm) { |
|
344 |
MessageFormat messageFormat = new MessageFormat( |
|
345 |
"\"DH ServerKeyExchange\": '{'\n" + |
|
346 |
" \"parameters\": '{'\n" + |
|
347 |
" \"dh_p\": '{'\n" + |
|
348 |
"{0}\n" + |
|
349 |
" '}',\n" + |
|
350 |
" \"dh_g\": '{'\n" + |
|
351 |
"{1}\n" + |
|
352 |
" '}',\n" + |
|
353 |
" \"dh_Ys\": '{'\n" + |
|
354 |
"{2}\n" + |
|
355 |
" '}',\n" + |
|
356 |
" '}',\n" + |
|
357 |
" \"digital signature\": '{'\n" + |
|
358 |
" \"signature algorithm\": \"{3}\"\n" + |
|
359 |
" \"signature\": '{'\n" + |
|
360 |
"{4}\n" + |
|
361 |
" '}',\n" + |
|
362 |
" '}'\n" + |
|
363 |
"'}'", |
|
364 |
Locale.ENGLISH); |
|
365 |
||
366 |
HexDumpEncoder hexEncoder = new HexDumpEncoder(); |
|
367 |
Object[] messageFields = { |
|
368 |
Utilities.indent( |
|
369 |
hexEncoder.encodeBuffer(p), " "), |
|
370 |
Utilities.indent( |
|
371 |
hexEncoder.encodeBuffer(g), " "), |
|
372 |
Utilities.indent( |
|
373 |
hexEncoder.encodeBuffer(y), " "), |
|
374 |
signatureScheme.name, |
|
375 |
Utilities.indent( |
|
376 |
hexEncoder.encodeBuffer(paramsSignature), " ") |
|
377 |
}; |
|
378 |
||
379 |
return messageFormat.format(messageFields); |
|
380 |
} else { |
|
381 |
MessageFormat messageFormat = new MessageFormat( |
|
382 |
"\"DH ServerKeyExchange\": '{'\n" + |
|
383 |
" \"parameters\": '{'\n" + |
|
384 |
" \"dh_p\": '{'\n" + |
|
385 |
"{0}\n" + |
|
386 |
" '}',\n" + |
|
387 |
" \"dh_g\": '{'\n" + |
|
388 |
"{1}\n" + |
|
389 |
" '}',\n" + |
|
390 |
" \"dh_Ys\": '{'\n" + |
|
391 |
"{2}\n" + |
|
392 |
" '}',\n" + |
|
393 |
" '}',\n" + |
|
394 |
" \"signature\": '{'\n" + |
|
395 |
"{3}\n" + |
|
396 |
" '}'\n" + |
|
397 |
"'}'", |
|
398 |
Locale.ENGLISH); |
|
399 |
||
400 |
HexDumpEncoder hexEncoder = new HexDumpEncoder(); |
|
401 |
Object[] messageFields = { |
|
402 |
Utilities.indent( |
|
403 |
hexEncoder.encodeBuffer(p), " "), |
|
404 |
Utilities.indent( |
|
405 |
hexEncoder.encodeBuffer(g), " "), |
|
406 |
Utilities.indent( |
|
407 |
hexEncoder.encodeBuffer(y), " "), |
|
408 |
Utilities.indent( |
|
409 |
hexEncoder.encodeBuffer(paramsSignature), " ") |
|
410 |
}; |
|
411 |
||
412 |
return messageFormat.format(messageFields); |
|
413 |
} |
|
414 |
} |
|
415 |
||
416 |
private static Signature getSignature(String keyAlgorithm, |
|
417 |
Key key) throws NoSuchAlgorithmException, InvalidKeyException { |
|
418 |
Signature signer = null; |
|
419 |
switch (keyAlgorithm) { |
|
420 |
case "DSA": |
|
53734
cb1642ccc732
8217835: Remove the experimental SunJSSE FIPS compliant mode
xuelei
parents:
53064
diff
changeset
|
421 |
signer = Signature.getInstance(JsseJce.SIGNATURE_DSA); |
50768 | 422 |
break; |
423 |
case "RSA": |
|
424 |
signer = RSASignature.getInstance(); |
|
425 |
break; |
|
426 |
default: |
|
427 |
throw new NoSuchAlgorithmException( |
|
428 |
"neither an RSA or a DSA key : " + keyAlgorithm); |
|
429 |
} |
|
430 |
||
431 |
if (signer != null) { |
|
432 |
if (key instanceof PublicKey) { |
|
433 |
signer.initVerify((PublicKey)(key)); |
|
434 |
} else { |
|
435 |
signer.initSign((PrivateKey)key); |
|
436 |
} |
|
437 |
} |
|
438 |
||
439 |
return signer; |
|
440 |
} |
|
441 |
||
442 |
/* |
|
443 |
* Update sig with nonces and Diffie-Hellman public key. |
|
444 |
*/ |
|
445 |
private void updateSignature(Signature sig, byte[] clntNonce, |
|
446 |
byte[] svrNonce) throws SignatureException { |
|
447 |
int tmp; |
|
448 |
||
449 |
sig.update(clntNonce); |
|
450 |
sig.update(svrNonce); |
|
451 |
||
452 |
sig.update((byte)(p.length >> 8)); |
|
453 |
sig.update((byte)(p.length & 0x0ff)); |
|
454 |
sig.update(p); |
|
455 |
||
456 |
sig.update((byte)(g.length >> 8)); |
|
457 |
sig.update((byte)(g.length & 0x0ff)); |
|
458 |
sig.update(g); |
|
459 |
||
460 |
sig.update((byte)(y.length >> 8)); |
|
461 |
sig.update((byte)(y.length & 0x0ff)); |
|
462 |
sig.update(y); |
|
463 |
} |
|
464 |
} |
|
465 |
||
466 |
/** |
|
467 |
* The DiffieHellman "ServerKeyExchange" handshake message producer. |
|
468 |
*/ |
|
469 |
static final class DHServerKeyExchangeProducer |
|
470 |
implements HandshakeProducer { |
|
471 |
// Prevent instantiation of this class. |
|
472 |
private DHServerKeyExchangeProducer() { |
|
473 |
// blank |
|
474 |
} |
|
475 |
||
476 |
@Override |
|
477 |
public byte[] produce(ConnectionContext context, |
|
478 |
HandshakeMessage message) throws IOException { |
|
479 |
// The producing happens in server side only. |
|
480 |
ServerHandshakeContext shc = (ServerHandshakeContext)context; |
|
481 |
DHServerKeyExchangeMessage skem = |
|
482 |
new DHServerKeyExchangeMessage(shc); |
|
483 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
484 |
SSLLogger.fine( |
|
485 |
"Produced DH ServerKeyExchange handshake message", skem); |
|
486 |
} |
|
487 |
||
488 |
// Output the handshake message. |
|
489 |
skem.write(shc.handshakeOutput); |
|
490 |
shc.handshakeOutput.flush(); |
|
491 |
||
492 |
// The handshake message has been delivered. |
|
493 |
return null; |
|
494 |
} |
|
495 |
} |
|
496 |
||
497 |
/** |
|
498 |
* The DiffieHellman "ServerKeyExchange" handshake message consumer. |
|
499 |
*/ |
|
500 |
static final class DHServerKeyExchangeConsumer implements SSLConsumer { |
|
501 |
// Prevent instantiation of this class. |
|
502 |
private DHServerKeyExchangeConsumer() { |
|
503 |
// blank |
|
504 |
} |
|
505 |
||
506 |
@Override |
|
507 |
public void consume(ConnectionContext context, |
|
508 |
ByteBuffer message) throws IOException { |
|
509 |
// The consuming happens in client side only. |
|
510 |
ClientHandshakeContext chc = (ClientHandshakeContext)context; |
|
511 |
||
512 |
DHServerKeyExchangeMessage skem = |
|
513 |
new DHServerKeyExchangeMessage(chc, message); |
|
514 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
515 |
SSLLogger.fine( |
|
516 |
"Consuming DH ServerKeyExchange handshake message", skem); |
|
517 |
} |
|
518 |
||
519 |
// |
|
520 |
// validate |
|
521 |
// |
|
522 |
// check constraints of EC PublicKey |
|
523 |
DHPublicKey publicKey; |
|
524 |
try { |
|
53734
cb1642ccc732
8217835: Remove the experimental SunJSSE FIPS compliant mode
xuelei
parents:
53064
diff
changeset
|
525 |
KeyFactory kf = KeyFactory.getInstance("DiffieHellman"); |
50768 | 526 |
DHPublicKeySpec spec = new DHPublicKeySpec( |
527 |
new BigInteger(1, skem.y), |
|
528 |
new BigInteger(1, skem.p), |
|
529 |
new BigInteger(1, skem.g)); |
|
530 |
publicKey = (DHPublicKey)kf.generatePublic(spec); |
|
531 |
} catch (GeneralSecurityException gse) { |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
532 |
throw chc.conContext.fatal(Alert.INSUFFICIENT_SECURITY, |
50768 | 533 |
"Could not generate DHPublicKey", gse); |
534 |
} |
|
535 |
||
536 |
if (!chc.algorithmConstraints.permits( |
|
537 |
EnumSet.of(CryptoPrimitive.KEY_AGREEMENT), publicKey)) { |
|
53064
103ed9569fc8
8215443: The use of TransportContext.fatal() leads to bad coding style
xuelei
parents:
50768
diff
changeset
|
538 |
throw chc.conContext.fatal(Alert.INSUFFICIENT_SECURITY, |
50768 | 539 |
"DH ServerKeyExchange does not comply to " + |
540 |
"algorithm constraints"); |
|
541 |
} |
|
542 |
||
543 |
// |
|
544 |
// update |
|
545 |
// |
|
546 |
NamedGroup namedGroup = NamedGroup.valueOf(publicKey.getParams()); |
|
547 |
chc.handshakeCredentials.add( |
|
548 |
new DHECredentials(publicKey, namedGroup)); |
|
549 |
||
550 |
// |
|
551 |
// produce |
|
552 |
// |
|
553 |
// Need no new handshake message producers here. |
|
554 |
} |
|
555 |
} |
|
556 |
} |
|
557 |