--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/security/cert/X509CertSelectorTest.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,538 @@
+/*
+ * Copyright (c) 2000, 2015, 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.
+ *
+ * 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.
+ */
+import static sun.security.x509.GeneralNameInterface.NAME_DIRECTORY;
+import static sun.security.x509.NameConstraintsExtension.EXCLUDED_SUBTREES;
+import static sun.security.x509.NameConstraintsExtension.PERMITTED_SUBTREES;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.math.BigInteger;
+import java.security.GeneralSecurityException;
+import java.security.KeyFactory;
+import java.security.PublicKey;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateFactory;
+import java.security.cert.X509CertSelector;
+import java.security.cert.X509Certificate;
+import java.security.spec.X509EncodedKeySpec;
+import java.util.Base64;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+
+import sun.security.util.DerInputStream;
+import sun.security.util.DerOutputStream;
+import sun.security.util.DerValue;
+import sun.security.util.ObjectIdentifier;
+import sun.security.x509.AlgorithmId;
+import sun.security.x509.AuthorityKeyIdentifierExtension;
+import sun.security.x509.CertificatePoliciesExtension;
+import sun.security.x509.DNSName;
+import sun.security.x509.GeneralName;
+import sun.security.x509.GeneralNameInterface;
+import sun.security.x509.GeneralNames;
+import sun.security.x509.GeneralSubtree;
+import sun.security.x509.GeneralSubtrees;
+import sun.security.x509.KeyIdentifier;
+import sun.security.x509.NameConstraintsExtension;
+import sun.security.x509.PolicyInformation;
+import sun.security.x509.PrivateKeyUsageExtension;
+import sun.security.x509.SubjectAlternativeNameExtension;
+import sun.security.x509.X500Name;
+
+/*
+ * @test
+ * @bug 8074931
+ * @summary This class tests the X509CertSelector. The tests check particular criteria
+ * by setting them to a value that should match our test certificate and
+ * ensuring that they do match, then setting them to a value that should not
+ * match our test certificate and ensuring that they do not match.
+ * @modules java.base/sun.security.x509
+ * java.base/sun.security.util
+ */
+public class X509CertSelectorTest {
+ /*
+ Certificate:
+ Data:
+ Version: 3 (0x2)
+ Serial Number: 954172088 (0x38df82b8)
+ Signature Algorithm: dsaWithSHA1
+ Issuer: C=us, O=sun, OU=testing
+ Validity
+ Not Before: Mar 27 15:48:08 2000 GMT
+ Not After : Jun 25 14:48:08 2000 GMT
+ Subject: C=us, O=sun, OU=testing, CN=mullan
+ Subject Public Key Info:
+ Public Key Algorithm: dsaEncryption
+ pub: 0
+ P: 0
+ Q: 0
+ G: 0
+ X509v3 extensions:
+ X509v3 Name Constraints: critical
+ 0D.B0@.>1.0...U....us1.0
+ ..U.
+ ..sun1.0...U....testing1.0
+ ..U....mullan
+ X509v3 Subject Key Identifier:
+ 56:E8:88:AE:9D:B5:3F:2B:CB:A0:4C:4B:E2:87:53:07:33:77:1B:DF
+ X509v3 Authority Key Identifier:
+ keyid:8E:DD:AF:6F:EE:02:12:F4:61:E9:2F:E3:64:1A:6F:71:32:25:20:C0
+
+ X509v3 Subject Alternative Name:
+ email:mullan@east.sun.com
+ X509v3 Private Key Usage Period:
+ Not Before: Jan 1 05:00:00 2000 GMT, Not After: Jan 1 05:00:00 2001 GMT
+ X509v3 Key Usage: critical
+ Digital Signature
+ X509v3 Certificate Policies:
+ 0$0\..*...0.0...+.......0..
+ Testing...
+ Signature Algorithm: dsaWithSHA1
+ r:
+ 44:c7:35:40:5d:6c:28:75:7f:73:b2:f8:0d:72:6c:
+ 09:65:b8:81:14
+ s:
+ 76:79:f5:c7:37:3b:0d:9b:db:70:2f:20:80:36:e3:
+ 80:e8:a6:c6:71
+ */
+ private static final String testCert =
+ "-----BEGIN CERTIFICATE-----\n" +
+ "MIICLjCCAeygAwIBAgIEON+CuDALBgcqhkjOOAQDBQAwLTELMAkGA1UEBhMCdXMx\n" +
+ "DDAKBgNVBAoTA3N1bjEQMA4GA1UECxMHdGVzdGluZzAeFw0wMDAzMjcxNTQ4MDha\n" +
+ "Fw0wMDA2MjUxNDQ4MDhaMD4xCzAJBgNVBAYTAnVzMQwwCgYDVQQKEwNzdW4xEDAO\n" +
+ "BgNVBAsTB3Rlc3RpbmcxDzANBgNVBAMTBm11bGxhbjAcMBQGByqGSM44BAEwCQIB\n" +
+ "AAIBAAIBAAMEAAIBAKOCASMwggEfMFAGA1UdHgEB/wRGMESgQjBApD4xCzAJBgNV\n" +
+ "BAYTAnVzMQwwCgYDVQQKEwNzdW4xEDAOBgNVBAsTB3Rlc3RpbmcxDzANBgNVBAMT\n" +
+ "Bm11bGxhbjAdBgNVHQ4EFgQUVuiIrp21PyvLoExL4odTBzN3G98wHwYDVR0jBBgw\n" +
+ "FoAUjt2vb+4CEvRh6S/jZBpvcTIlIMAwHgYDVR0RBBcwFYETbXVsbGFuQGVhc3Qu\n" +
+ "c3VuLmNvbTArBgNVHRAEJDAigA8yMDAwMDEwMTA1MDAwMFqBDzIwMDEwMTAxMDUw\n" +
+ "MDAwWjAPBgNVHQ8BAf8EBQMDB4AAMC0GA1UdIAQmMCQwIgYEKoSAADAaMBgGCCsG\n" +
+ "AQUFBwICMAwSClRlc3RpbmcuLi4wCwYHKoZIzjgEAwUAAy8AMCwCFETHNUBdbCh1\n" +
+ "f3Oy+A1ybAlluIEUAhR2efXHNzsNm9twLyCANuOA6KbGcQ==\n" +
+ "-----END CERTIFICATE-----\n" +
+ "";
+
+ private static final String testKey =
+ "MIIBtjCCASsGByqGSM44BAEwggEeAoGBAIVWPEkcxbxhQRCqVzg55tNqbP5j0K4kdu4bkmXvfqC5\n" +
+ "+qA75DvnfzsOJseb+9AuKXWk/DvCzFDmrY1YaU3scZC3OQEO9lEO3F4VDKOaudY6OT1SI22pAIwz\n" +
+ "j5pvq+i7zOp4xUqkQUeh/4iQSfxOT5UrFGjkcbnbpVkCXD/GxAz7AhUAjtnm3dVIddUUHl6wxpZ7\n" +
+ "GcA6gSsCgYAf/PXzQtemgIDjpFrNNSgTEKkLposBXKatAM+gUKlMUjf8SQvquqPxDtRrscGjXkoL\n" +
+ "oTkaR7/akULYFpBvUcFkeIFiCnJg8M9XhCWdLvn9MPt+jR2oxookvCb9xLtD6WvIM/wd/nZ1iK4u\n" +
+ "iY1+q85xvns/Awbtwl7oZDAwE2TUKAOBhAACgYBDc9UZ+3xsZubUZvRG5cpyJceYpJp2exOPVJXn\n" +
+ "jR4CcR+cT9bAJpFSxqE/8KtNHXxHdu4f3DU67IMOVDpugzihyzXJvNm3w2H9x+6xczHG2wjvAJeh\n" +
+ "X62EWbUatxPXFAoVKZWuUbaYaZzdWBDtNRrCuKKsLo0GFy8g2BZISuD3jw==\n" +
+ "";
+
+ // Certificate to run tests on
+ private final X509Certificate cert;
+
+ public static void main(String[] args) throws Exception {
+ X509CertSelectorTest test = new X509CertSelectorTest();
+ test.doTest();
+ }
+
+ public X509CertSelectorTest() throws CertificateException, IOException {
+ cert = (X509Certificate) CertificateFactory.getInstance("X.509")
+ .generateCertificate(new ByteArrayInputStream(testCert.getBytes()));
+ }
+
+ // Runs the test.
+ private void doTest() throws Exception {
+ System.out.println("START OF TESTS FOR " + "X509CertSelector");
+
+ testSerialNumber();
+ testIssuer();
+ testSubjectKeyIdentifier();
+ testAuthorityKeyIdentifier();
+ testCertificateValid();
+ testPrivateKeyValid();
+ testSubjectPublicKeyAlgID();
+ testKeyUsage();
+ testSubjectAltName();
+ testPolicy();
+ testPathToName();
+ testSubject();
+ testSubjectPublicKey();
+ testNameConstraints();
+ testBasicConstraints();
+ testCertificate();
+ }
+
+ // Tests matching on the serial number contained in the certificate.
+ private void testSerialNumber() {
+ System.out.println("X.509 Certificate Match on serialNumber");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ selector.setSerialNumber(new BigInteger("999999999"));
+ checkMatch(selector, cert, false);
+
+ // good match
+ selector.setSerialNumber(cert.getSerialNumber());
+ checkMatch(selector, cert, true);
+ }
+
+ // Tests matching on the issuer name contained in the certificate.
+ private void testIssuer() throws IOException {
+ System.out.println("X.509 Certificate Match on issuer");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ selector.setIssuer("ou=bogus,ou=east,o=sun,c=us");
+ checkMatch(selector, cert, false);
+
+ // good match
+ selector.setIssuer((cert.getIssuerX500Principal()).getName("RFC2253"));
+ checkMatch(selector, cert, true);
+ }
+
+ /*
+ * Tests matching on the subject key identifier contained in the
+ * certificate.
+ */
+ private void testSubjectKeyIdentifier() throws IOException {
+ System.out.println("X.509 Certificate Match on subjectKeyIdentifier");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ byte[] b = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+ selector.setSubjectKeyIdentifier(b);
+ checkMatch(selector, cert, false);
+
+ // good match
+ DerInputStream in = new DerInputStream(cert.getExtensionValue("2.5.29.14"));
+ byte[] encoded = in.getOctetString();
+ selector.setSubjectKeyIdentifier(encoded);
+ checkMatch(selector, cert, true);
+ }
+
+ /*
+ * Tests matching on the authority key identifier contained in the
+ * certificate.
+ */
+ private void testAuthorityKeyIdentifier() throws IOException {
+ System.out.println("X.509 Certificate Match on authorityKeyIdentifier");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ byte[] b = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+ AuthorityKeyIdentifierExtension a = new AuthorityKeyIdentifierExtension(new KeyIdentifier(b), null, null);
+ selector.setAuthorityKeyIdentifier(a.getExtensionValue());
+ checkMatch(selector, cert, false);
+
+ // good match
+ DerInputStream in = new DerInputStream(cert.getExtensionValue("2.5.29.35"));
+ byte[] encoded = in.getOctetString();
+ selector.setAuthorityKeyIdentifier(encoded);
+ checkMatch(selector, cert, true);
+ }
+
+ /*
+ * Tests matching on the certificate validity component contained in the
+ * certificate.
+ */
+ private void testCertificateValid() {
+ System.out.println("X.509 Certificate Match on certificateValid");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ Calendar cal = Calendar.getInstance();
+ cal.set(1968, 12, 31);
+ selector.setCertificateValid(cal.getTime());
+ checkMatch(selector, cert, false);
+
+ // good match
+ selector.setCertificateValid(cert.getNotBefore());
+ checkMatch(selector, cert, true);
+ }
+
+ /*
+ * Tests matching on the private key validity component contained in the
+ * certificate.
+ */
+ private void testPrivateKeyValid() throws IOException, CertificateException {
+ System.out.println("X.509 Certificate Match on privateKeyValid");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ Calendar cal = Calendar.getInstance();
+ cal.set(1968, 12, 31);
+ selector.setPrivateKeyValid(cal.getTime());
+ checkMatch(selector, cert, false);
+
+ // good match
+ DerInputStream in = new DerInputStream(cert.getExtensionValue("2.5.29.16"));
+ byte[] encoded = in.getOctetString();
+ PrivateKeyUsageExtension ext = new PrivateKeyUsageExtension(false, encoded);
+ Date validDate = (Date) ext.get(PrivateKeyUsageExtension.NOT_BEFORE);
+ selector.setPrivateKeyValid(validDate);
+ checkMatch(selector, cert, true);
+
+ }
+
+ private ObjectIdentifier getCertPubKeyAlgOID(X509Certificate xcert) throws IOException {
+ byte[] encodedKey = xcert.getPublicKey().getEncoded();
+ DerValue val = new DerValue(encodedKey);
+ if (val.tag != DerValue.tag_Sequence) {
+ throw new RuntimeException("invalid key format");
+ }
+
+ return AlgorithmId.parse(val.data.getDerValue()).getOID();
+ }
+
+ /*
+ * Tests matching on the subject public key algorithm ID component contained
+ * in the certificate.
+ */
+ private void testSubjectPublicKeyAlgID() throws IOException {
+ System.out.println("X.509 Certificate Match on subjectPublicKeyAlgID");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ selector.setSubjectPublicKeyAlgID("2.5.29.14");
+ checkMatch(selector, cert, false);
+
+ // good match
+ selector.setSubjectPublicKeyAlgID(getCertPubKeyAlgOID(cert).toString());
+ checkMatch(selector, cert, true);
+
+ }
+
+ // Tests matching on the key usage extension contained in the certificate.
+ private void testKeyUsage() {
+ System.out.println("X.509 Certificate Match on keyUsage");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ boolean[] keyUsage = { true, false, true, false, true, false, true, false };
+ selector.setKeyUsage(keyUsage);
+ System.out.println("Selector = " + selector.toString());
+ checkMatch(selector, cert, false);
+
+ // good match
+ selector.setKeyUsage(cert.getKeyUsage());
+ System.out.println("Selector = " + selector.toString());
+ checkMatch(selector, cert, true);
+ }
+
+ /*
+ * Tests matching on the subject alternative name extension contained in the
+ * certificate.
+ */
+ private void testSubjectAltName() throws IOException {
+ System.out.println("X.509 Certificate Match on subjectAltName");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ GeneralNameInterface dnsName = new DNSName("foo.com");
+ DerOutputStream tmp = new DerOutputStream();
+ dnsName.encode(tmp);
+ selector.addSubjectAlternativeName(2, tmp.toByteArray());
+ checkMatch(selector, cert, false);
+
+ // good match
+ DerInputStream in = new DerInputStream(cert.getExtensionValue("2.5.29.17"));
+ byte[] encoded = in.getOctetString();
+ SubjectAlternativeNameExtension ext = new SubjectAlternativeNameExtension(false, encoded);
+ GeneralNames names = (GeneralNames) ext.get(SubjectAlternativeNameExtension.SUBJECT_NAME);
+ GeneralName name = (GeneralName) names.get(0);
+ selector.setSubjectAlternativeNames(null);
+ DerOutputStream tmp2 = new DerOutputStream();
+ name.getName().encode(tmp2);
+ selector.addSubjectAlternativeName(name.getType(), tmp2.toByteArray());
+ checkMatch(selector, cert, true);
+
+ // good match 2 (matches at least one)
+ selector.setMatchAllSubjectAltNames(false);
+ selector.addSubjectAlternativeName(2, "foo.com");
+ checkMatch(selector, cert, true);
+ }
+
+ /*
+ * Tests matching on the policy constraints extension contained in the
+ * certificate.
+ */
+ private void testPolicy() throws IOException {
+ System.out.println("X.509 Certificate Match on certificatePolicies");
+ // test encoding of CertificatePoliciesExtension because we wrote the
+ // code
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ Set<String> s = new HashSet<>();
+ s.add(new String("1.2.5.7.68"));
+ selector.setPolicy(s);
+ checkMatch(selector, cert, false);
+
+ // good match
+ DerInputStream in = new DerInputStream(cert.getExtensionValue("2.5.29.32"));
+ CertificatePoliciesExtension ext = new CertificatePoliciesExtension(false, in.getOctetString());
+ List<PolicyInformation> policies = ext.get(CertificatePoliciesExtension.POLICIES);
+ // match on the first policy id
+ PolicyInformation policyInfo = (PolicyInformation) policies.get(0);
+ s.clear();
+ s.add(policyInfo.getPolicyIdentifier().getIdentifier().toString());
+ selector.setPolicy(s);
+ checkMatch(selector, cert, true);
+ }
+
+ /*
+ * Tests matching on the name constraints extension contained in the
+ * certificate.
+ */
+ private void testPathToName() throws IOException {
+ System.out.println("X.509 Certificate Match on pathToName");
+
+ X509CertSelector selector = null;
+ DerInputStream in = new DerInputStream(cert.getExtensionValue("2.5.29.30"));
+ byte[] encoded = in.getOctetString();
+ NameConstraintsExtension ext = new NameConstraintsExtension(false, encoded);
+ GeneralSubtrees permitted = (GeneralSubtrees) ext.get(PERMITTED_SUBTREES);
+ GeneralSubtrees excluded = (GeneralSubtrees) ext.get(EXCLUDED_SUBTREES);
+
+ // bad matches on pathToName within excluded subtrees
+ if (excluded != null) {
+ Iterator<GeneralSubtree> e = excluded.iterator();
+ while (e.hasNext()) {
+ GeneralSubtree tree = e.next();
+ if (tree.getName().getType() == NAME_DIRECTORY) {
+ X500Name excludedDN1 = new X500Name(tree.getName().toString());
+ X500Name excludedDN2 = new X500Name("CN=Bogus, " + tree.getName().toString());
+ DerOutputStream derDN1 = new DerOutputStream();
+ DerOutputStream derDN2 = new DerOutputStream();
+ excludedDN1.encode(derDN1);
+ excludedDN2.encode(derDN2);
+ selector = new X509CertSelector();
+ selector.addPathToName(NAME_DIRECTORY, derDN1.toByteArray());
+ checkMatch(selector, cert, false);
+ selector.setPathToNames(null);
+ selector.addPathToName(NAME_DIRECTORY, derDN2.toByteArray());
+ checkMatch(selector, cert, false);
+ }
+ }
+ }
+
+ // good matches on pathToName within permitted subtrees
+ if (permitted != null) {
+ Iterator<GeneralSubtree> e = permitted.iterator();
+ while (e.hasNext()) {
+ GeneralSubtree tree = e.next();
+ if (tree.getName().getType() == NAME_DIRECTORY) {
+ X500Name permittedDN1 = new X500Name(tree.getName().toString());
+ X500Name permittedDN2 = new X500Name("CN=good, " + tree.getName().toString());
+ DerOutputStream derDN1 = new DerOutputStream();
+ DerOutputStream derDN2 = new DerOutputStream();
+ permittedDN1.encode(derDN1);
+ permittedDN2.encode(derDN2);
+ selector = new X509CertSelector();
+ selector.addPathToName(NAME_DIRECTORY, derDN1.toByteArray());
+ checkMatch(selector, cert, true);
+ selector.setPathToNames(null);
+ selector.addPathToName(NAME_DIRECTORY, derDN2.toByteArray());
+ checkMatch(selector, cert, true);
+ }
+ }
+ }
+ }
+
+ // Tests matching on the subject name contained in the certificate.
+ private void testSubject() throws IOException {
+ System.out.println("X.509 Certificate Match on subject");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ selector.setSubject("ou=bogus,ou=east,o=sun,c=us");
+ checkMatch(selector, cert, false);
+
+ // good match
+ selector.setSubject(cert.getSubjectX500Principal().getName("RFC2253"));
+ checkMatch(selector, cert, true);
+ }
+
+ // Tests matching on the subject public key contained in the certificate.
+ private void testSubjectPublicKey() throws IOException, GeneralSecurityException {
+ System.out.println("X.509 Certificate Match on subject public key");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ X509EncodedKeySpec keySpec = new X509EncodedKeySpec(
+ Base64.getMimeDecoder().decode(testKey.getBytes()));
+ KeyFactory keyFactory = KeyFactory.getInstance("DSA");
+ PublicKey pubKey = keyFactory.generatePublic(keySpec);
+ selector.setSubjectPublicKey(pubKey);
+ checkMatch(selector, cert, false);
+
+ // good match
+ selector.setSubjectPublicKey(cert.getPublicKey());
+ checkMatch(selector, cert, true);
+ }
+
+ // Tests matching on the name constraints contained in the certificate.
+ private void testNameConstraints() throws IOException {
+ System.out.println("X.509 Certificate Match on name constraints");
+ // bad match
+ GeneralSubtrees subjectTree = new GeneralSubtrees();
+ subjectTree.add(getGeneralSubtree((X500Name) cert.getSubjectDN()));
+ NameConstraintsExtension ext = new NameConstraintsExtension((GeneralSubtrees) null, subjectTree);
+ X509CertSelector selector = new X509CertSelector();
+ selector.setNameConstraints(ext.getExtensionValue());
+ checkMatch(selector, cert, false);
+
+ // good match
+ ext = new NameConstraintsExtension(subjectTree, null);
+ selector.setNameConstraints(ext.getExtensionValue());
+ checkMatch(selector, cert, true);
+ }
+
+ // Tests matching on basic constraints.
+ private void testBasicConstraints() {
+ System.out.println("X.509 Certificate Match on basic constraints");
+ // bad match
+ X509CertSelector selector = new X509CertSelector();
+ int mpl = cert.getBasicConstraints();
+ selector.setBasicConstraints(0);
+ checkMatch(selector, cert, false);
+
+ // good match
+ selector.setBasicConstraints(mpl);
+ checkMatch(selector, cert, true);
+ }
+
+ // Tests certificateEquals criterion
+ private void testCertificate() {
+ System.out.println("X.509 Certificate Match on certificateEquals criterion");
+
+ X509CertSelector selector = new X509CertSelector();
+ // good match
+ selector.setCertificate(cert);
+ checkMatch(selector, cert, true);
+ }
+
+ private void checkMatch(X509CertSelector selector, X509Certificate cert, boolean match) {
+ boolean result = selector.match(cert);
+ if (match != result)
+ throw new RuntimeException(selector + " match " + cert + " is " + result + ", but expect " + match);
+ }
+
+ private static GeneralSubtree getGeneralSubtree(GeneralNameInterface gni) {
+ // Create a new GeneralSubtree with the specified name, 0 base, and
+ // unlimited length
+ GeneralName gn = new GeneralName(gni);
+ GeneralSubtree subTree = new GeneralSubtree(gn, 0, -1);
+ return subTree;
+ }
+}