| /* |
| * Copyright (c) 1997, 2017, 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 javax.security.cert; |
| |
| import java.security.PublicKey; |
| import java.security.NoSuchAlgorithmException; |
| import java.security.NoSuchProviderException; |
| import java.security.InvalidKeyException; |
| import java.security.SignatureException; |
| |
| /** |
| * <p>Abstract class for managing a variety of identity certificates. |
| * An identity certificate is a guarantee by a principal that |
| * a public key is that of another principal. (A principal represents |
| * an entity such as an individual user, a group, or a corporation.) |
| *<p> |
| * This class is an abstraction for certificates that have different |
| * formats but important common uses. For example, different types of |
| * certificates, such as X.509 and PGP, share general certificate |
| * functionality (like encoding and verifying) and |
| * some types of information (like a public key). |
| * <p> |
| * X.509, PGP, and SDSI certificates can all be implemented by |
| * subclassing the Certificate class, even though they contain different |
| * sets of information, and they store and retrieve the information in |
| * different ways. |
| * |
| * <p><em>Note: The classes in the package {@code javax.security.cert} |
| * exist for compatibility with earlier versions of the |
| * Java Secure Sockets Extension (JSSE). New applications should instead |
| * use the standard Java SE certificate classes located in |
| * {@code java.security.cert}.</em></p> |
| * |
| * @since 1.4 |
| * @see X509Certificate |
| * @deprecated Use the classes in {@code java.security.cert} instead. |
| * |
| * @author Hemma Prafullchandra |
| */ |
| @Deprecated(since="9") |
| public abstract class Certificate { |
| |
| /** |
| * Compares this certificate for equality with the specified |
| * object. If the {@code other} object is an |
| * {@code instanceof} {@code Certificate}, then |
| * its encoded form is retrieved and compared with the |
| * encoded form of this certificate. |
| * |
| * @param other the object to test for equality with this certificate. |
| * @return true if the encoded forms of the two certificates |
| * match, false otherwise. |
| */ |
| public boolean equals(Object other) { |
| if (this == other) |
| return true; |
| if (!(other instanceof Certificate)) |
| return false; |
| try { |
| byte[] thisCert = this.getEncoded(); |
| byte[] otherCert = ((Certificate)other).getEncoded(); |
| |
| if (thisCert.length != otherCert.length) |
| return false; |
| for (int i = 0; i < thisCert.length; i++) |
| if (thisCert[i] != otherCert[i]) |
| return false; |
| return true; |
| } catch (CertificateException e) { |
| return false; |
| } |
| } |
| |
| /** |
| * Returns a hashcode value for this certificate from its |
| * encoded form. |
| * |
| * @return the hashcode value. |
| */ |
| public int hashCode() { |
| int retval = 0; |
| try { |
| byte[] certData = this.getEncoded(); |
| for (int i = 1; i < certData.length; i++) { |
| retval += certData[i] * i; |
| } |
| return (retval); |
| } catch (CertificateException e) { |
| return (retval); |
| } |
| } |
| |
| /** |
| * Returns the encoded form of this certificate. It is |
| * assumed that each certificate type would have only a single |
| * form of encoding; for example, X.509 certificates would |
| * be encoded as ASN.1 DER. |
| * |
| * @return encoded form of this certificate |
| * @exception CertificateEncodingException on internal certificate |
| * encoding failure |
| */ |
| public abstract byte[] getEncoded() throws CertificateEncodingException; |
| |
| /** |
| * Verifies that this certificate was signed using the |
| * private key that corresponds to the specified public key. |
| * |
| * @param key the PublicKey used to carry out the verification. |
| * |
| * @exception NoSuchAlgorithmException on unsupported signature |
| * algorithms. |
| * @exception InvalidKeyException on incorrect key. |
| * @exception NoSuchProviderException if there's no default provider. |
| * @exception SignatureException on signature errors. |
| * @exception CertificateException on encoding errors. |
| */ |
| public abstract void verify(PublicKey key) |
| throws CertificateException, NoSuchAlgorithmException, |
| InvalidKeyException, NoSuchProviderException, |
| SignatureException; |
| |
| /** |
| * Verifies that this certificate was signed using the |
| * private key that corresponds to the specified public key. |
| * This method uses the signature verification engine |
| * supplied by the specified provider. |
| * |
| * @param key the PublicKey used to carry out the verification. |
| * @param sigProvider the name of the signature provider. |
| * @exception NoSuchAlgorithmException on unsupported signature algorithms. |
| * @exception InvalidKeyException on incorrect key. |
| * @exception NoSuchProviderException on incorrect provider. |
| * @exception SignatureException on signature errors. |
| * @exception CertificateException on encoding errors. |
| */ |
| public abstract void verify(PublicKey key, String sigProvider) |
| throws CertificateException, NoSuchAlgorithmException, |
| InvalidKeyException, NoSuchProviderException, |
| SignatureException; |
| |
| /** |
| * Returns a string representation of this certificate. |
| * |
| * @return a string representation of this certificate. |
| */ |
| public abstract String toString(); |
| |
| /** |
| * Gets the public key from this certificate. |
| * |
| * @return the public key. |
| */ |
| public abstract PublicKey getPublicKey(); |
| } |