001 /* X509Certificate.java -- base class of X.509 certificates.
002 Copyright (C) 2004 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 javax.security.cert;
040
041 import java.io.ByteArrayInputStream;
042 import java.io.InputStream;
043
044 import java.math.BigInteger;
045
046 import java.security.Principal;
047 import java.security.cert.CertificateFactory;
048
049 import java.util.Date;
050
051 /**
052 * <p>The base class of all X.509 certificates.</p>
053 *
054 * <p><b>This class is deprecated in favor of the {@link
055 * java.security.cert.X509Certificate} class. It should not be used in new
056 * applications.</b></p>
057 */
058 public abstract class X509Certificate extends Certificate
059 {
060
061 // Class methods.
062 // -------------------------------------------------------------------------
063
064 /**
065 * <p>Get an instance of X509Certificate for the given encoded bytes.</p>
066 *
067 * @param encoded The encoded certificate.
068 * @return An instance of X509Certificate.
069 * @throws CertificateException If the encoded certificate cannot be parsed.
070 */
071 public static X509Certificate getInstance(byte[] encoded)
072 throws CertificateException
073 {
074 return getInstance(new ByteArrayInputStream(encoded));
075 }
076
077 /**
078 * <p>Get an instance of X509Certificate for the given encoded stream.</p>
079 *
080 * @param encoded The encoded certificate stream..
081 * @return An instance of X509Certificate.
082 * @throws CertificateException If the encoded certificate cannot be parsed.
083 */
084 public static X509Certificate getInstance(InputStream encoded)
085 throws CertificateException
086 {
087 try
088 {
089 CertificateFactory cf = CertificateFactory.getInstance("X.509");
090 return new X509CertBridge((java.security.cert.X509Certificate)
091 cf.generateCertificate(encoded));
092 }
093 catch (java.security.cert.CertificateException ce)
094 {
095 throw new CertificateException(ce.getMessage());
096 }
097 }
098
099 // Abstract methods.
100 // -------------------------------------------------------------------------
101
102 /**
103 * <p>Check if this certificate is valid now.</p>
104 *
105 * @throws CertificateExpiredException If the certificate has expired.
106 * @throws CertificateNotYetValidException If the certificate is not yet valid.
107 * @see #checkValidity(java.util.Date)
108 */
109 public abstract void checkValidity()
110 throws CertificateExpiredException, CertificateNotYetValidException;
111
112 /**
113 * <p>Check if this certificate is valid for the given date.</p>
114 *
115 * @param date The date to check.
116 * @throws CertificateExpiredException If the certificate has expired.
117 * @throws CertificateNotYetValidException If the certificate is not yet valid.
118 */
119 public abstract void checkValidity(Date date)
120 throws CertificateExpiredException, CertificateNotYetValidException;
121
122 /**
123 * <p>Returns the X.509 version number.</p>
124 *
125 * @return The version number.
126 */
127 public abstract int getVersion();
128
129 /**
130 * <p>Returns this certificate's serial number.</p>
131 *
132 * @return The serial number.
133 */
134 public abstract BigInteger getSerialNumber();
135
136 /**
137 * <p>Returns the distinguished name of this certificate's issuer.</p>
138 *
139 * @return The issuer's distinguished name.
140 */
141 public abstract Principal getIssuerDN();
142
143 /**
144 * <p>Returns the distinguished name of this certificate's subject.</p>
145 *
146 * @return The subject's distinguished name.
147 */
148 public abstract Principal getSubjectDN();
149
150 /**
151 * <p>Returns the <i>not before</i> portion of this certificate's validity
152 * period.</p>
153 *
154 * @return The not before date.
155 */
156 public abstract Date getNotBefore();
157
158 /**
159 * <p>Returns the <i>not after</i> portion of this certificate's validity
160 * period.</p>
161 *
162 * @return The not after date.
163 */
164 public abstract Date getNotAfter();
165
166 /**
167 * <p>Returns the name of this certificate's signature algorithm.</p>
168 *
169 * @return The name of the signature algorithm.
170 */
171 public abstract String getSigAlgName();
172
173 /**
174 * <p>Returns the object identifier (OID) of this certificate's signature
175 * algorithm. The returned string is a sequence of integers separated by
176 * periods.</p>
177 *
178 * @return The signature OID.
179 */
180 public abstract String getSigAlgOID();
181
182 /**
183 * <p>Returns the signature parameters. The returned byte array contains the
184 * raw DER-encoded parameters.</p>
185 *
186 * @return The signature parameters.
187 */
188 public abstract byte[] getSigAlgParams();
189 }