--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/security/x509/ExtendedKeyUsageExtension.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,312 @@
+/*
+ * Copyright 2000-2006 Sun Microsystems, Inc. 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. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.security.x509;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Vector;
+
+import sun.security.util.DerValue;
+import sun.security.util.DerOutputStream;
+import sun.security.util.ObjectIdentifier;
+
+/**
+ * This class defines the Extended Key Usage Extension, which
+ * indicates one or more purposes for which the certified public key
+ * may be used, in addition to or in place of the basic purposes
+ * indicated in the key usage extension field. This field is defined
+ * as follows:<p>
+ *
+ * id-ce-extKeyUsage OBJECT IDENTIFIER ::= {id-ce 37}<p>
+ *
+ * ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId<p>
+ *
+ * KeyPurposeId ::= OBJECT IDENTIFIER<p>
+ *
+ * Key purposes may be defined by any organization with a need. Object
+ * identifiers used to identify key purposes shall be assigned in
+ * accordance with IANA or ITU-T Rec. X.660 | ISO/IEC/ITU 9834-1.<p>
+ *
+ * This extension may, at the option of the certificate issuer, be
+ * either critical or non-critical.<p>
+ *
+ * If the extension is flagged critical, then the certificate MUST be
+ * used only for one of the purposes indicated.<p>
+ *
+ * If the extension is flagged non-critical, then it indicates the
+ * intended purpose or purposes of the key, and may be used in finding
+ * the correct key/certificate of an entity that has multiple
+ * keys/certificates. It is an advisory field and does not imply that
+ * usage of the key is restricted by the certification authority to
+ * the purpose indicated. Certificate using applications may
+ * nevertheless require that a particular purpose be indicated in
+ * order for the certificate to be acceptable to that application.<p>
+
+ * If a certificate contains both a critical key usage field and a
+ * critical extended key usage field, then both fields MUST be
+ * processed independently and the certificate MUST only be used for a
+ * purpose consistent with both fields. If there is no purpose
+ * consistent with both fields, then the certificate MUST NOT be used
+ * for any purpose.<p>
+ *
+ * @since 1.4
+ */
+public class ExtendedKeyUsageExtension extends Extension
+implements CertAttrSet<String> {
+
+ /**
+ * Identifier for this attribute, to be used with the
+ * get, set, delete methods of Certificate, x509 type.
+ */
+ public static final String IDENT = "x509.info.extensions.ExtendedKeyUsage";
+
+ /**
+ * Attribute names.
+ */
+ public static final String NAME = "ExtendedKeyUsage";
+ public static final String USAGES = "usages";
+
+ // OID defined in RFC 3280 Sections 4.2.1.13
+ // more from http://www.alvestrand.no/objectid/1.3.6.1.5.5.7.3.html
+ private static final Map <ObjectIdentifier, String> map =
+ new HashMap <ObjectIdentifier, String> ();
+
+ private static final int[] anyExtendedKeyUsageOidData = {2, 5, 29, 37, 0};
+ private static final int[] serverAuthOidData = {1, 3, 6, 1, 5, 5, 7, 3, 1};
+ private static final int[] clientAuthOidData = {1, 3, 6, 1, 5, 5, 7, 3, 2};
+ private static final int[] codeSigningOidData = {1, 3, 6, 1, 5, 5, 7, 3, 3};
+ private static final int[] emailProtectionOidData = {1, 3, 6, 1, 5, 5, 7, 3, 4};
+ private static final int[] ipsecEndSystemOidData = {1, 3, 6, 1, 5, 5, 7, 3, 5};
+ private static final int[] ipsecTunnelOidData = {1, 3, 6, 1, 5, 5, 7, 3, 6};
+ private static final int[] ipsecUserOidData = {1, 3, 6, 1, 5, 5, 7, 3, 7};
+ private static final int[] timeStampingOidData = {1, 3, 6, 1, 5, 5, 7, 3, 8};
+ private static final int[] OCSPSigningOidData = {1, 3, 6, 1, 5, 5, 7, 3, 9};
+
+ static {
+ map.put(ObjectIdentifier.newInternal(anyExtendedKeyUsageOidData), "anyExtendedKeyUsage");
+ map.put(ObjectIdentifier.newInternal(serverAuthOidData), "serverAuth");
+ map.put(ObjectIdentifier.newInternal(clientAuthOidData), "clientAuth");
+ map.put(ObjectIdentifier.newInternal(codeSigningOidData), "codeSigning");
+ map.put(ObjectIdentifier.newInternal(emailProtectionOidData), "emailProtection");
+ map.put(ObjectIdentifier.newInternal(ipsecEndSystemOidData), "ipsecEndSystem");
+ map.put(ObjectIdentifier.newInternal(ipsecTunnelOidData), "ipsecTunnel");
+ map.put(ObjectIdentifier.newInternal(ipsecUserOidData), "ipsecUser");
+ map.put(ObjectIdentifier.newInternal(timeStampingOidData), "timeStamping");
+ map.put(ObjectIdentifier.newInternal(OCSPSigningOidData), "OCSPSigning");
+ };
+
+ /**
+ * Vector of KeyUsages for this object.
+ */
+ private Vector<ObjectIdentifier> keyUsages;
+
+ // Encode this extension value.
+ private void encodeThis() throws IOException {
+ if (keyUsages == null || keyUsages.isEmpty()) {
+ this.extensionValue = null;
+ return;
+ }
+ DerOutputStream os = new DerOutputStream();
+ DerOutputStream tmp = new DerOutputStream();
+
+ for (int i = 0; i < keyUsages.size(); i++) {
+ tmp.putOID(keyUsages.elementAt(i));
+ }
+
+ os.write(DerValue.tag_Sequence, tmp);
+ this.extensionValue = os.toByteArray();
+ }
+
+ /**
+ * Create a ExtendedKeyUsageExtension object from
+ * a Vector of Key Usages; the criticality is set to false.
+ *
+ * @param keyUsages the Vector of KeyUsages (ObjectIdentifiers)
+ */
+ public ExtendedKeyUsageExtension(Vector<ObjectIdentifier> keyUsages)
+ throws IOException {
+ this(Boolean.FALSE, keyUsages);
+ }
+
+ /**
+ * Create a ExtendedKeyUsageExtension object from
+ * a Vector of KeyUsages with specified criticality.
+ *
+ * @param critical true if the extension is to be treated as critical.
+ * @param keyUsages the Vector of KeyUsages (ObjectIdentifiers)
+ */
+ public ExtendedKeyUsageExtension(Boolean critical, Vector<ObjectIdentifier> keyUsages)
+ throws IOException {
+ this.keyUsages = keyUsages;
+ this.extensionId = PKIXExtensions.ExtendedKeyUsage_Id;
+ this.critical = critical.booleanValue();
+ encodeThis();
+ }
+
+ /**
+ * Create the extension from its DER encoded value and criticality.
+ *
+ * @param critical true if the extension is to be treated as critical.
+ * @param value an array of DER encoded bytes of the actual value.
+ * @exception ClassCastException if value is not an array of bytes
+ * @exception IOException on error.
+ */
+ public ExtendedKeyUsageExtension(Boolean critical, Object value)
+ throws IOException {
+ this.extensionId = PKIXExtensions.ExtendedKeyUsage_Id;
+ this.critical = critical.booleanValue();
+ this.extensionValue = (byte[]) value;
+ DerValue val = new DerValue(this.extensionValue);
+ if (val.tag != DerValue.tag_Sequence) {
+ throw new IOException("Invalid encoding for " +
+ "ExtendedKeyUsageExtension.");
+ }
+ keyUsages = new Vector<ObjectIdentifier>();
+ while (val.data.available() != 0) {
+ DerValue seq = val.data.getDerValue();
+ ObjectIdentifier usage = seq.getOID();
+ keyUsages.addElement(usage);
+ }
+ }
+
+ /**
+ * Return the extension as user readable string.
+ */
+ public String toString() {
+ if (keyUsages == null) return "";
+ String usage = " ";
+ boolean first = true;
+ for (ObjectIdentifier oid: keyUsages) {
+ if(!first) {
+ usage += "\n ";
+ }
+
+ String result = map.get(oid);
+ if (result != null) {
+ usage += result;
+ } else {
+ usage += oid.toString();
+ }
+ first = false;
+ }
+ return super.toString() + "ExtendedKeyUsages [\n"
+ + usage + "\n]\n";
+ }
+
+ /**
+ * Write the extension to the DerOutputStream.
+ *
+ * @param out the DerOutputStream to write the extension to.
+ * @exception IOException on encoding errors.
+ */
+ public void encode(OutputStream out) throws IOException {
+ DerOutputStream tmp = new DerOutputStream();
+ if (extensionValue == null) {
+ extensionId = PKIXExtensions.ExtendedKeyUsage_Id;
+ critical = false;
+ encodeThis();
+ }
+ super.encode(tmp);
+ out.write(tmp.toByteArray());
+ }
+
+ /**
+ * Set the attribute value.
+ */
+ public void set(String name, Object obj) throws IOException {
+ if (name.equalsIgnoreCase(USAGES)) {
+ if (!(obj instanceof Vector)) {
+ throw new IOException("Attribute value should be of type Vector.");
+ }
+ this.keyUsages = (Vector<ObjectIdentifier>)obj;
+ } else {
+ throw new IOException("Attribute name [" + name +
+ "] not recognized by " +
+ "CertAttrSet:ExtendedKeyUsageExtension.");
+ }
+ encodeThis();
+ }
+
+ /**
+ * Get the attribute value.
+ */
+ public Object get(String name) throws IOException {
+ if (name.equalsIgnoreCase(USAGES)) {
+ //XXXX May want to consider cloning this
+ return keyUsages;
+ } else {
+ throw new IOException("Attribute name [" + name +
+ "] not recognized by " +
+ "CertAttrSet:ExtendedKeyUsageExtension.");
+ }
+ }
+
+ /**
+ * Delete the attribute value.
+ */
+ public void delete(String name) throws IOException {
+ if (name.equalsIgnoreCase(USAGES)) {
+ keyUsages = null;
+ } else {
+ throw new IOException("Attribute name [" + name +
+ "] not recognized by " +
+ "CertAttrSet:ExtendedKeyUsageExtension.");
+ }
+ encodeThis();
+ }
+
+ /**
+ * Return an enumeration of names of attributes existing within this
+ * attribute.
+ */
+ public Enumeration<String> getElements() {
+ AttributeNameEnumeration elements = new AttributeNameEnumeration();
+ elements.addElement(USAGES);
+
+ return (elements.elements());
+ }
+
+ /**
+ * Return the name of this attribute.
+ */
+ public String getName() {
+ return (NAME);
+ }
+
+ public List<String> getExtendedKeyUsage() {
+ List<String> al = new ArrayList<String>(keyUsages.size());
+ for (ObjectIdentifier oid : keyUsages) {
+ al.add(oid.toString());
+ }
+ return al;
+ }
+
+}