2362N/A * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * <p>Abstract class for managing a variety of identity certificates. 0N/A * An identity certificate is a guarantee by a principal that 0N/A * a public key is that of another principal. (A principal represents 0N/A * an entity such as an individual user, a group, or a corporation.) 0N/A * This class is an abstraction for certificates that have different 0N/A * formats but important common uses. For example, different types of 0N/A * certificates, such as X.509 and PGP, share general certificate 0N/A * functionality (like encoding and verifying) and 0N/A * some types of information (like a public key). 0N/A * X.509, PGP, and SDSI certificates can all be implemented by 0N/A * subclassing the Certificate class, even though they contain different 0N/A * sets of information, and they store and retrieve the information in 0N/A * <p><em>Note: The classes in the package <code>javax.security.cert</code> 0N/A * exist for compatibility with earlier versions of the 0N/A * Java Secure Sockets Extension (JSSE). New applications should instead 0N/A * use the standard Java SE certificate classes located in 0N/A * <code>java.security.cert</code>.</em></p> 0N/A * @see X509Certificate 0N/A * @author Hemma Prafullchandra 0N/A * Compares this certificate for equality with the specified 0N/A * object. If the <code>other</code> object is an 0N/A * <code>instanceof</code> <code>Certificate</code>, then 0N/A * its encoded form is retrieved and compared with the 0N/A * encoded form of this certificate. 0N/A * @param other the object to test for equality with this certificate. 0N/A * @return true if the encoded forms of the two certificates 0N/A * match, false otherwise. 0N/A * Returns a hashcode value for this certificate from its 0N/A * @return the hashcode value. 0N/A * Returns the encoded form of this certificate. It is 0N/A * assumed that each certificate type would have only a single 0N/A * form of encoding; for example, X.509 certificates would 0N/A * be encoded as ASN.1 DER. 0N/A * @return encoded form of this certificate 0N/A * @exception CertificateEncodingException on internal certificate 0N/A * Verifies that this certificate was signed using the 0N/A * private key that corresponds to the specified public key. 0N/A * @param key the PublicKey used to carry out the verification. 0N/A * @exception NoSuchAlgorithmException on unsupported signature 0N/A * @exception InvalidKeyException on incorrect key. 0N/A * @exception NoSuchProviderException if there's no default provider. 0N/A * @exception SignatureException on signature errors. 0N/A * @exception CertificateException on encoding errors. 0N/A * Verifies that this certificate was signed using the 0N/A * private key that corresponds to the specified public key. 0N/A * This method uses the signature verification engine 0N/A * supplied by the specified provider. 0N/A * @param key the PublicKey used to carry out the verification. 0N/A * @param sigProvider the name of the signature provider. 0N/A * @exception NoSuchAlgorithmException on unsupported signature algorithms. 0N/A * @exception InvalidKeyException on incorrect key. 0N/A * @exception NoSuchProviderException on incorrect provider. 0N/A * @exception SignatureException on signature errors. 0N/A * @exception CertificateException on encoding errors. 0N/A * Returns a string representation of this certificate. 0N/A * @return a string representation of this certificate. 0N/A * Gets the public key from this certificate. 0N/A * @return the public key.