176 lines
5.5 KiB
Java
176 lines
5.5 KiB
Java
/* Certificate.java -- base class of public-key certificates.
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.security.cert;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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import java.security.NoSuchProviderException;
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import java.security.PublicKey;
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import java.security.SignatureException;
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import java.util.Arrays;
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import java.util.zip.Adler32;
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/**
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* <p>The base class for public-key certificates.</p>
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*
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* <p><b>This class is deprecated in favor of the {@link
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* java.security.cert.Certificate} class. It should not be used in new
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* applications.</b></p>
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*/
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public abstract class Certificate
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{
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// Constructors.
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// -------------------------------------------------------------------------
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public Certificate()
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{
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super();
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}
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// Instance methods.
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// -------------------------------------------------------------------------
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/**
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* <p>Tests if this certificate equals another.</p>
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*
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* @param other The object to test.
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* @return True if the certificates are equal.
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*/
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public boolean equals(Object other)
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{
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if (other == null || !(other instanceof Certificate))
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{
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return false;
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}
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if (other == this)
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{
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return true;
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}
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try
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{
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return Arrays.equals(getEncoded(), ((Certificate) other).getEncoded());
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}
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catch (CertificateEncodingException cee)
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{
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return false;
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}
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}
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/**
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* <p>Computes a hash code for this certificate.</p>
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*
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* @return The hash code.
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*/
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public int hashCode()
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{
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try
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{
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Adler32 csum = new Adler32();
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csum.update(getEncoded());
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return (int) csum.getValue();
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}
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catch (CertificateEncodingException cee)
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{
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return 0;
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}
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}
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// Abstract methods.
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// -------------------------------------------------------------------------
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/**
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* <p>Return the encoded form of this certificate.</p>
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*
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* @return The encoded form.
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* @throws CertificateEncodingException If the certificate could not be
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* encoded.
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*/
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public abstract byte[] getEncoded() throws CertificateEncodingException;
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/**
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* <p>Verifies the signature of this certificate.</p>
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*
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* @param key The signer's public key.
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* @throws CertificateException
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* @throws NoSuchAlgorithmException If the algorithm used to sign the
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* certificate is not available.
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* @throws InvalidKeyException If the supplied key is not appropriate for the
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* certificate's signature algorithm.
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* @throws NoSuchProviderException
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* @throws SignatureException If the signature could not be verified.
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*/
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public abstract void verify(PublicKey key)
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throws CertificateException, NoSuchAlgorithmException, InvalidKeyException,
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NoSuchProviderException, SignatureException;
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/**
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* <p>Verifies the signature of this certificate, using the specified security
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* provider.</p>
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*
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* @param key The signer's public key.
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* @param sigProvider The name of the signature provider.
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* @throws CertificateException
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* @throws NoSuchAlgorithmException If the algorithm used to sign the
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* certificate is not available.
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* @throws InvalidKeyException If the supplied key is not appropriate for the
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* certificate's signature algorithm.
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* @throws NoSuchProviderException If <i>sigProvider</i> is not the name of an
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* installed provider.
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* @throws SignatureException If the signature could not be verified.
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*/
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public abstract void verify(PublicKey key, String sigProvider)
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throws CertificateException, NoSuchAlgorithmException, InvalidKeyException,
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NoSuchProviderException, SignatureException;
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/**
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* <p>Returns a printable representation of this certificate.</p>
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*
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* @return The string.
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*/
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public abstract String toString();
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/**
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* <p>Returns this certificate's public key.</p>
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*
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* @return The public key.
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*/
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public abstract PublicKey getPublicKey();
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}
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