1 /* 2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 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 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 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 * 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. 24 */ 25 26 package javax.net.ssl; 27 28 import java.net.Socket; 29 import javax.net.ssl.X509TrustManager; 30 31 import java.security.cert.X509Certificate; 32 import java.security.cert.CertificateException; 33 34 /** 35 * Extensions to the <code>X509TrustManager</code> interface to support 36 * SSL/TLS connection sensitive trust management. 37 * <p> 38 * To prevent man-in-the-middle attacks, hostname checks can be done 39 * to verify that the hostname in an end-entity certificate matches the 40 * targeted hostname. TLS does not require such checks, but some protocols 41 * over TLS (such as HTTPS) do. In earlier versions of the JDK, the 42 * certificate chain checks were done at the SSL/TLS layer, and the hostname 43 * verification checks were done at the layer over TLS. This class allows 44 * for the checking to be done during a single call to this class. 45 * <p> 46 * RFC 2830 defines the server identification specification for the "LDAPS" 47 * algorithm. RFC 2818 defines both the server identification and the 48 * client identification specification for the "HTTPS" algorithm. 49 * 50 * @see X509TrustManager 51 * @see HostnameVerifier 52 * 53 * @since 1.7 54 */ 55 public abstract class X509ExtendedTrustManager implements X509TrustManager { 56 /** 57 * Given the partial or complete certificate chain provided by the 58 * peer, build and validate the certificate path based on the 59 * authentication type and ssl parameters. 60 * <p> 61 * The authentication type is determined by the actual certificate 62 * used. For instance, if RSAPublicKey is used, the authType 63 * should be "RSA". Checking is case-sensitive. 64 * <p> 65 * If the <code>socket</code> parameter is an instance of 66 * {@link javax.net.ssl.SSLSocket}, and the endpoint identification 67 * algorithm of the <code>SSLParameters</code> is non-empty, to prevent 68 * man-in-the-middle attacks, the address that the <code>socket</code> 69 * connected to should be checked against the peer's identity presented 70 * in the end-entity X509 certificate, as specified in the endpoint 71 * identification algorithm. 72 * <p> 73 * If the <code>socket</code> parameter is an instance of 74 * {@link javax.net.ssl.SSLSocket}, and the algorithm constraints of the 75 * <code>SSLParameters</code> is non-null, for every certificate in the 76 * certification path, fields such as subject public key, the signature 77 * algorithm, key usage, extended key usage, etc. need to conform to the 78 * algorithm constraints in place on this socket. 79 * 80 * @param chain the peer certificate chain 81 * @param authType the key exchange algorithm used 82 * @param socket the socket used for this connection. This parameter 83 * can be null, which indicates that implementations need not check 84 * the ssl parameters 85 * @throws IllegalArgumentException if null or zero-length array is passed 86 * in for the <code>chain</code> parameter or if null or zero-length 87 * string is passed in for the <code>authType</code> parameter 88 * @throws CertificateException if the certificate chain is not trusted 89 * by this TrustManager 90 * 91 * @see SSLParameters#getEndpointIdentificationAlgorithm 92 * @see SSLParameters#setEndpointIdentificationAlgorithm(String) 93 * @see SSLParameters#getAlgorithmConstraints 94 * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints) 95 */ checkClientTrusted(X509Certificate[] chain, String authType, Socket socket)96 public abstract void checkClientTrusted(X509Certificate[] chain, 97 String authType, Socket socket) throws CertificateException; 98 99 /** 100 * Given the partial or complete certificate chain provided by the 101 * peer, build and validate the certificate path based on the 102 * authentication type and ssl parameters. 103 * <p> 104 * The authentication type is the key exchange algorithm portion 105 * of the cipher suites represented as a String, such as "RSA", 106 * "DHE_DSS". Note: for some exportable cipher suites, the key 107 * exchange algorithm is determined at run time during the 108 * handshake. For instance, for TLS_RSA_EXPORT_WITH_RC4_40_MD5, 109 * the authType should be RSA_EXPORT when an ephemeral RSA key is 110 * used for the key exchange, and RSA when the key from the server 111 * certificate is used. Checking is case-sensitive. 112 * <p> 113 * If the <code>socket</code> parameter is an instance of 114 * {@link javax.net.ssl.SSLSocket}, and the endpoint identification 115 * algorithm of the <code>SSLParameters</code> is non-empty, to prevent 116 * man-in-the-middle attacks, the address that the <code>socket</code> 117 * connected to should be checked against the peer's identity presented 118 * in the end-entity X509 certificate, as specified in the endpoint 119 * identification algorithm. 120 * <p> 121 * If the <code>socket</code> parameter is an instance of 122 * {@link javax.net.ssl.SSLSocket}, and the algorithm constraints of the 123 * <code>SSLParameters</code> is non-null, for every certificate in the 124 * certification path, fields such as subject public key, the signature 125 * algorithm, key usage, extended key usage, etc. need to conform to the 126 * algorithm constraints in place on this socket. 127 * 128 * @param chain the peer certificate chain 129 * @param authType the key exchange algorithm used 130 * @param socket the socket used for this connection. This parameter 131 * can be null, which indicates that implementations need not check 132 * the ssl parameters 133 * @throws IllegalArgumentException if null or zero-length array is passed 134 * in for the <code>chain</code> parameter or if null or zero-length 135 * string is passed in for the <code>authType</code> parameter 136 * @throws CertificateException if the certificate chain is not trusted 137 * by this TrustManager 138 * 139 * @see SSLParameters#getEndpointIdentificationAlgorithm 140 * @see SSLParameters#setEndpointIdentificationAlgorithm(String) 141 * @see SSLParameters#getAlgorithmConstraints 142 * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints) 143 */ checkServerTrusted(X509Certificate[] chain, String authType, Socket socket)144 public abstract void checkServerTrusted(X509Certificate[] chain, 145 String authType, Socket socket) throws CertificateException; 146 147 /** 148 * Given the partial or complete certificate chain provided by the 149 * peer, build and validate the certificate path based on the 150 * authentication type and ssl parameters. 151 * <p> 152 * The authentication type is determined by the actual certificate 153 * used. For instance, if RSAPublicKey is used, the authType 154 * should be "RSA". Checking is case-sensitive. 155 * <p> 156 * If the <code>engine</code> parameter is available, and the endpoint 157 * identification algorithm of the <code>SSLParameters</code> is 158 * non-empty, to prevent man-in-the-middle attacks, the address that 159 * the <code>engine</code> connected to should be checked against 160 * the peer's identity presented in the end-entity X509 certificate, 161 * as specified in the endpoint identification algorithm. 162 * <p> 163 * If the <code>engine</code> parameter is available, and the algorithm 164 * constraints of the <code>SSLParameters</code> is non-null, for every 165 * certificate in the certification path, fields such as subject public 166 * key, the signature algorithm, key usage, extended key usage, etc. 167 * need to conform to the algorithm constraints in place on this engine. 168 * 169 * @param chain the peer certificate chain 170 * @param authType the key exchange algorithm used 171 * @param engine the engine used for this connection. This parameter 172 * can be null, which indicates that implementations need not check 173 * the ssl parameters 174 * @throws IllegalArgumentException if null or zero-length array is passed 175 * in for the <code>chain</code> parameter or if null or zero-length 176 * string is passed in for the <code>authType</code> parameter 177 * @throws CertificateException if the certificate chain is not trusted 178 * by this TrustManager 179 * 180 * @see SSLParameters#getEndpointIdentificationAlgorithm 181 * @see SSLParameters#setEndpointIdentificationAlgorithm(String) 182 * @see SSLParameters#getAlgorithmConstraints 183 * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints) 184 */ checkClientTrusted(X509Certificate[] chain, String authType, SSLEngine engine)185 public abstract void checkClientTrusted(X509Certificate[] chain, 186 String authType, SSLEngine engine) throws CertificateException; 187 188 /** 189 * Given the partial or complete certificate chain provided by the 190 * peer, build and validate the certificate path based on the 191 * authentication type and ssl parameters. 192 * <p> 193 * The authentication type is the key exchange algorithm portion 194 * of the cipher suites represented as a String, such as "RSA", 195 * "DHE_DSS". Note: for some exportable cipher suites, the key 196 * exchange algorithm is determined at run time during the 197 * handshake. For instance, for TLS_RSA_EXPORT_WITH_RC4_40_MD5, 198 * the authType should be RSA_EXPORT when an ephemeral RSA key is 199 * used for the key exchange, and RSA when the key from the server 200 * certificate is used. Checking is case-sensitive. 201 * <p> 202 * If the <code>engine</code> parameter is available, and the endpoint 203 * identification algorithm of the <code>SSLParameters</code> is 204 * non-empty, to prevent man-in-the-middle attacks, the address that 205 * the <code>engine</code> connected to should be checked against 206 * the peer's identity presented in the end-entity X509 certificate, 207 * as specified in the endpoint identification algorithm. 208 * <p> 209 * If the <code>engine</code> parameter is available, and the algorithm 210 * constraints of the <code>SSLParameters</code> is non-null, for every 211 * certificate in the certification path, fields such as subject public 212 * key, the signature algorithm, key usage, extended key usage, etc. 213 * need to conform to the algorithm constraints in place on this engine. 214 * 215 * @param chain the peer certificate chain 216 * @param authType the key exchange algorithm used 217 * @param engine the engine used for this connection. This parameter 218 * can be null, which indicates that implementations need not check 219 * the ssl parameters 220 * @throws IllegalArgumentException if null or zero-length array is passed 221 * in for the <code>chain</code> parameter or if null or zero-length 222 * string is passed in for the <code>authType</code> parameter 223 * @throws CertificateException if the certificate chain is not trusted 224 * by this TrustManager 225 * 226 * @see SSLParameters#getEndpointIdentificationAlgorithm 227 * @see SSLParameters#setEndpointIdentificationAlgorithm(String) 228 * @see SSLParameters#getAlgorithmConstraints 229 * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints) 230 */ checkServerTrusted(X509Certificate[] chain, String authType, SSLEngine engine)231 public abstract void checkServerTrusted(X509Certificate[] chain, 232 String authType, SSLEngine engine) throws CertificateException; 233 234 } 235