001 /* X509CRLEntry.java --- X.509 Certificate Revocation List Entry
002 Copyright (C) 1999 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039 package java.security.cert;
040
041 import java.math.BigInteger;
042 import java.util.Date;
043
044 /**
045 Abstract class for entries in the CRL (Certificate Revocation
046 List). The ASN.1 definition for <I>revokedCertificates</I> is
047
048 revokedCertificates SEQUENCE OF SEQUENCE {
049 userCertificate CertificateSerialNumber,
050 revocationDate Time,
051 crlEntryExtensions Extensions OPTIONAL
052 -- if present, shall be v2
053 } OPTIONAL,
054
055 CertificateSerialNumber ::= INTEGER
056
057 Time ::= CHOICE {
058 utcTime UTCTime,
059 generalTime GeneralizedTime }
060
061 Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension
062
063 Extension ::= SEQUENCE {
064 extnID OBJECT IDENTIFIER,
065 critical BOOLEAN DEFAULT FALSE,
066 extnValue OCTET STRING }
067
068 For more information consult rfc2459.
069
070 @author Mark Benvenuto
071
072 @since JDK 1.2
073 */
074 public abstract class X509CRLEntry implements X509Extension
075 {
076
077 /**
078 Creates a new X509CRLEntry
079 */
080 public X509CRLEntry()
081 {}
082
083 /**
084 Compares this X509CRLEntry to other. It checks if the
085 object if instanceOf X509CRLEntry and then checks if
086 the encoded form( the inner SEQUENCE) matches.
087
088 @param other An Object to test for equality
089
090 @return true if equal, false otherwise
091 */
092 public boolean equals(Object other)
093 {
094 if( other instanceof X509CRLEntry ) {
095 try {
096 X509CRLEntry xe = (X509CRLEntry) other;
097 if( getEncoded().length != xe.getEncoded().length )
098 return false;
099
100 byte[] b1 = getEncoded();
101 byte[] b2 = xe.getEncoded();
102
103 for( int i = 0; i < b1.length; i++ )
104 if( b1[i] != b2[i] )
105 return false;
106
107 } catch( CRLException crle ) {
108 return false;
109 }
110 return true;
111 }
112 return false;
113 }
114
115 /**
116 Returns a hash code for this X509CRLEntry in its encoded
117 form.
118
119 @return A hash code of this class
120 */
121 public int hashCode()
122 {
123 return super.hashCode();
124 }
125
126 /**
127 Gets the DER ASN.1 encoded format for this CRL Entry,
128 the inner SEQUENCE.
129
130 @return byte array containg encoded form
131
132 @throws CRLException if an error occurs
133 */
134 public abstract byte[] getEncoded() throws CRLException;
135
136 /**
137 Gets the serial number for <I>userCertificate</I> in
138 this X509CRLEntry.
139
140 @return the serial number for this X509CRLEntry.
141 */
142 public abstract BigInteger getSerialNumber();
143
144
145 /**
146 Gets the revocation date in <I>revocationDate</I> for
147 this X509CRLEntry.
148
149 @return the revocation date for this X509CRLEntry.
150 */
151 public abstract Date getRevocationDate();
152
153
154 /**
155 Checks if this X509CRLEntry has extensions.
156
157 @return true if it has extensions, false otherwise
158 */
159 public abstract boolean hasExtensions();
160
161
162 /**
163 Returns a string that represents this X509CRLEntry.
164
165 @return a string representing this X509CRLEntry.
166 */
167 public abstract String toString();
168
169 }