3002N/A * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 3002N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3002N/A * This code is free software; you can redistribute it and/or modify it 3002N/A * under the terms of the GNU General Public License version 2 only, as 3002N/A * published by the Free Software Foundation. Oracle designates this 3002N/A * particular file as subject to the "Classpath" exception as provided 3002N/A * by Oracle in the LICENSE file that accompanied this code. 3002N/A * This code is distributed in the hope that it will be useful, but WITHOUT 3002N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 3002N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 3002N/A * version 2 for more details (a copy is included in the LICENSE file that 3002N/A * You should have received a copy of the GNU General Public License version 3002N/A * 2 along with this work; if not, write to the Free Software Foundation, 3002N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 3002N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 3002N/A * or visit www.oracle.com if you need additional information or have any 3002N/A * Extensions to the <code>X509TrustManager</code> interface to support 3002N/A * To prevent man-in-the-middle attacks, hostname checks can be done 3002N/A * to verify that the hostname in an end-entity certificate matches the 3002N/A * targeted hostname. TLS does not require such checks, but some protocols 3002N/A * over TLS (such as HTTPS) do. In earlier versions of the JDK, the 3002N/A * certificate chain checks were done at the SSL/TLS layer, and the hostname 3002N/A * verification checks were done at the layer over TLS. This class allows 3002N/A * for the checking to be done during a single call to this class. 3002N/A * RFC 2830 defines the server identification specification for the "LDAPS" 3002N/A * algorithm. RFC 2818 defines both the server identification and the 3002N/A * client identification specification for the "HTTPS" algorithm. 3002N/A * Given the partial or complete certificate chain provided by the 3002N/A * peer, build and validate the certificate path based on the 3002N/A * authentication type and ssl parameters. 3002N/A * The authentication type is determined by the actual certificate 3002N/A * used. For instance, if RSAPublicKey is used, the authType 3002N/A * should be "RSA". Checking is case-sensitive. 3002N/A * If the <code>socket</code> parameter is an instance of 3319N/A * {@link javax.net.ssl.SSLSocket}, and the endpoint identification 3002N/A * algorithm of the <code>SSLParameters</code> is non-empty, to prevent 3002N/A * man-in-the-middle attacks, the address that the <code>socket</code> 3002N/A * connected to should be checked against the peer's identity presented 3002N/A * in the end-entity X509 certificate, as specified in the endpoint 3002N/A * identification algorithm. 3002N/A * If the <code>socket</code> parameter is an instance of 3319N/A * {@link javax.net.ssl.SSLSocket}, and the algorithm constraints of the 3002N/A * <code>SSLParameters</code> is non-null, for every certificate in the 3002N/A * certification path, fields such as subject public key, the signature 3002N/A * algorithm, key usage, extended key usage, etc. need to conform to the 3002N/A * algorithm constraints in place on this socket. 3002N/A * @param chain the peer certificate chain 3002N/A * @param authType the key exchange algorithm used 3002N/A * @param socket the socket used for this connection. This parameter 3002N/A * can be null, which indicates that implementations need not check 3002N/A * @throws IllegalArgumentException if null or zero-length array is passed 3002N/A * in for the <code>chain</code> parameter or if null or zero-length 3002N/A * string is passed in for the <code>authType</code> parameter 3002N/A * @throws CertificateException if the certificate chain is not trusted 3319N/A * @see SSLParameters#getEndpointIdentificationAlgorithm 3319N/A * @see SSLParameters#setEndpointIdentificationAlgorithm(String) 3002N/A * @see SSLParameters#getAlgorithmConstraints 3002N/A * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints) 3002N/A * Given the partial or complete certificate chain provided by the 3002N/A * peer, build and validate the certificate path based on the 3002N/A * authentication type and ssl parameters. 3002N/A * The authentication type is the key exchange algorithm portion 3002N/A * of the cipher suites represented as a String, such as "RSA", 3002N/A * "DHE_DSS". Note: for some exportable cipher suites, the key 3002N/A * exchange algorithm is determined at run time during the 3002N/A * handshake. For instance, for TLS_RSA_EXPORT_WITH_RC4_40_MD5, 3002N/A * the authType should be RSA_EXPORT when an ephemeral RSA key is 3002N/A * used for the key exchange, and RSA when the key from the server 3002N/A * certificate is used. Checking is case-sensitive. 3002N/A * If the <code>socket</code> parameter is an instance of 3319N/A * {@link javax.net.ssl.SSLSocket}, and the endpoint identification 3002N/A * algorithm of the <code>SSLParameters</code> is non-empty, to prevent 3002N/A * man-in-the-middle attacks, the address that the <code>socket</code> 3002N/A * connected to should be checked against the peer's identity presented 3002N/A * in the end-entity X509 certificate, as specified in the endpoint 3002N/A * identification algorithm. 3002N/A * If the <code>socket</code> parameter is an instance of 3319N/A * {@link javax.net.ssl.SSLSocket}, and the algorithm constraints of the 3002N/A * <code>SSLParameters</code> is non-null, for every certificate in the 3002N/A * certification path, fields such as subject public key, the signature 3002N/A * algorithm, key usage, extended key usage, etc. need to conform to the 3002N/A * algorithm constraints in place on this socket. 3002N/A * @param chain the peer certificate chain 3002N/A * @param authType the key exchange algorithm used 3002N/A * @param socket the socket used for this connection. This parameter 3002N/A * can be null, which indicates that implementations need not check 3002N/A * @throws IllegalArgumentException if null or zero-length array is passed 3002N/A * in for the <code>chain</code> parameter or if null or zero-length 3002N/A * string is passed in for the <code>authType</code> parameter 3002N/A * @throws CertificateException if the certificate chain is not trusted 3319N/A * @see SSLParameters#getEndpointIdentificationAlgorithm 3319N/A * @see SSLParameters#setEndpointIdentificationAlgorithm(String) 3002N/A * @see SSLParameters#getAlgorithmConstraints 3002N/A * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints) 3002N/A * Given the partial or complete certificate chain provided by the 3002N/A * peer, build and validate the certificate path based on the 3002N/A * authentication type and ssl parameters. 3002N/A * The authentication type is determined by the actual certificate 3002N/A * used. For instance, if RSAPublicKey is used, the authType 3002N/A * should be "RSA". Checking is case-sensitive. 3002N/A * If the <code>engine</code> parameter is available, and the endpoint 3002N/A * identification algorithm of the <code>SSLParameters</code> is 3002N/A * non-empty, to prevent man-in-the-middle attacks, the address that 3002N/A * the <code>engine</code> connected to should be checked against 3002N/A * the peer's identity presented in the end-entity X509 certificate, 3002N/A * as specified in the endpoint identification algorithm. 3002N/A * If the <code>engine</code> parameter is available, and the algorithm 3002N/A * constraints of the <code>SSLParameters</code> is non-null, for every 3002N/A * certificate in the certification path, fields such as subject public 3002N/A * key, the signature algorithm, key usage, extended key usage, etc. 3002N/A * need to conform to the algorithm constraints in place on this engine. 3002N/A * @param chain the peer certificate chain 3002N/A * @param authType the key exchange algorithm used 3002N/A * @param engine the engine used for this connection. This parameter 3002N/A * can be null, which indicates that implementations need not check 3002N/A * @throws IllegalArgumentException if null or zero-length array is passed 3002N/A * in for the <code>chain</code> parameter or if null or zero-length 3002N/A * string is passed in for the <code>authType</code> parameter 3002N/A * @throws CertificateException if the certificate chain is not trusted 3319N/A * @see SSLParameters#getEndpointIdentificationAlgorithm 3319N/A * @see SSLParameters#setEndpointIdentificationAlgorithm(String) 3002N/A * @see SSLParameters#getAlgorithmConstraints 3002N/A * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints) 3002N/A * Given the partial or complete certificate chain provided by the 3002N/A * peer, build and validate the certificate path based on the 3002N/A * authentication type and ssl parameters. 3002N/A * The authentication type is the key exchange algorithm portion 3002N/A * of the cipher suites represented as a String, such as "RSA", 3002N/A * "DHE_DSS". Note: for some exportable cipher suites, the key 3002N/A * exchange algorithm is determined at run time during the 3002N/A * handshake. For instance, for TLS_RSA_EXPORT_WITH_RC4_40_MD5, 3002N/A * the authType should be RSA_EXPORT when an ephemeral RSA key is 3002N/A * used for the key exchange, and RSA when the key from the server 3002N/A * certificate is used. Checking is case-sensitive. 3002N/A * If the <code>engine</code> parameter is available, and the endpoint 3002N/A * identification algorithm of the <code>SSLParameters</code> is 3002N/A * non-empty, to prevent man-in-the-middle attacks, the address that 3002N/A * the <code>engine</code> connected to should be checked against 3002N/A * the peer's identity presented in the end-entity X509 certificate, 3002N/A * as specified in the endpoint identification algorithm. 3002N/A * If the <code>engine</code> parameter is available, and the algorithm 3002N/A * constraints of the <code>SSLParameters</code> is non-null, for every 3002N/A * certificate in the certification path, fields such as subject public 3002N/A * key, the signature algorithm, key usage, extended key usage, etc. 3002N/A * need to conform to the algorithm constraints in place on this engine. 3002N/A * @param chain the peer certificate chain 3002N/A * @param authType the key exchange algorithm used 3002N/A * @param engine the engine used for this connection. This parameter 3002N/A * can be null, which indicates that implementations need not check 3002N/A * @throws IllegalArgumentException if null or zero-length array is passed 3002N/A * in for the <code>chain</code> parameter or if null or zero-length 3002N/A * string is passed in for the <code>authType</code> parameter 3002N/A * @throws CertificateException if the certificate chain is not trusted 3319N/A * @see SSLParameters#getEndpointIdentificationAlgorithm 3319N/A * @see SSLParameters#setEndpointIdentificationAlgorithm(String) 3002N/A * @see SSLParameters#getAlgorithmConstraints 3002N/A * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints)