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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. */ /* * @test * @bug 8317431 * @summary Verify order of PKIXCertComparator sorting algorithm * @modules java.base/sun.security.provider.certpath:+open * java.base/sun.security.x509 * java.base/sun.security.util * @library /test/lib * @run main Order */ import java.lang.reflect.Constructor; import java.security.KeyPair; import java.security.KeyPairGenerator; import java.security.cert.X509Certificate; import java.util.Comparator; import java.util.Set; import javax.security.auth.x500.X500Principal; import sun.security.x509.X509CertImpl; import jdk.test.lib.Asserts; import jdk.test.lib.security.CertificateBuilder; public class Order { private record CertAndKeyPair(X509Certificate cert, KeyPair keyPair) {} private static KeyPairGenerator kpg; public static void main(String[] args) throws Exception { kpg = KeyPairGenerator.getInstance("RSA"); kpg.initialize(2048); // Create top-level root CA cert with KIDs (Subject and Auth KeyIds) // A root CA doesn't usually have an Auth KeyId but for this test, // it doesn't matter. CertAndKeyPair rootCA = createCert(null, "CN=Root CA, O=Java, C=US", true, true); System.out.println(rootCA.cert); // Create intermediate CA cert with KIDs, issued by root CA CertAndKeyPair javaCA = createCert(rootCA, "CN=Java CA, O=Java, C=US", true, true); System.out.println(javaCA.cert); // Create intermediate CA cert without KIDs, issued by root CA. // This CA has the same DN/public key as the CA with KIDs. CertAndKeyPair javaCAWoKids = createCert(rootCA, "CN=Java CA, O=Java, C=US", true, false, javaCA.keyPair); System.out.println(javaCAWoKids.cert); // Create another intermediate CA cert without KIDs, issued by root CA. CertAndKeyPair openJDKCAWoKids = createCert(rootCA, "CN=OpenJDK CA, O=OpenJDK, C=US", true, false); System.out.println(openJDKCAWoKids.cert); // Create another intermediate CA with KIDs, issued by Java CA CertAndKeyPair secCA = createCert(javaCAWoKids, "CN=Security CA, OU=Security, O=Java, C=US", true, true); System.out.println(secCA.cert); // Cross certify Java CA with OpenJDK CA CertAndKeyPair javaCAIssuedByOpenJDKCA = createCert(openJDKCAWoKids, "CN=Java CA, O=Java, C=US", true, false, javaCA.keyPair); System.out.println(javaCAIssuedByOpenJDKCA.cert); // Cross certify Security CA with OpenJDK CA CertAndKeyPair secCAIssuedByOpenJDKCA = createCert(openJDKCAWoKids, "CN=Security CA, OU=Security, O=Java, C=US", true, false, secCA.keyPair); System.out.println(secCAIssuedByOpenJDKCA.cert); // Create end entity cert without KIDs issued by Security CA. CertAndKeyPair ee = createCert(secCA, "CN=EE, OU=Security, O=Java, C=US", false, false); System.out.println(ee.cert); // Create another end entity cert without KIDs issued by Java CA. // This EE has the same DN/public key as the one above. CertAndKeyPair eeIssuedByJavaCA = createCert(javaCA, "CN=EE, OU=Security, O=Java, C=US", false, false); System.out.println(eeIssuedByJavaCA.cert); Constructor ctor = getPKIXCertComparatorCtor(); Set trustedSubjects = Set.of(new X500Principal("CN=Root CA, O=Java, C=US")); System.out.println("Test that equal certs are treated the same"); Comparator c = (Comparator) ctor.newInstance(trustedSubjects, secCA.cert); Asserts.assertTrue(c.compare(javaCA.cert, javaCA.cert) == 0); System.out.println("Test that cert with matching kids is preferred"); Asserts.assertTrue(c.compare(javaCA.cert, javaCAWoKids.cert) == -1); Asserts.assertTrue(c.compare(javaCAWoKids.cert, javaCA.cert) == 1); System.out.println("Test that cert issued by anchor is preferred"); Asserts.assertTrue( c.compare(javaCAWoKids.cert, javaCAIssuedByOpenJDKCA.cert) == -1); Asserts.assertTrue( c.compare(javaCAIssuedByOpenJDKCA.cert, javaCAWoKids.cert) == 1); System.out.println( "Test that cert issuer in same namespace as anchor is preferred"); c = (Comparator) ctor.newInstance(trustedSubjects, ee.cert); Asserts.assertTrue( c.compare(secCA.cert, secCAIssuedByOpenJDKCA.cert) == -1); Asserts.assertTrue( c.compare(secCAIssuedByOpenJDKCA.cert, secCA.cert) == 1); System.out.println( "Test cert issuer in same namespace closest to root is preferred"); Asserts.assertTrue(c.compare(eeIssuedByJavaCA.cert, ee.cert) == -1); Asserts.assertTrue(c.compare(ee.cert, eeIssuedByJavaCA.cert) == 1); } private static boolean[] CA_KEY_USAGE = new boolean[] {true,false,false,false,false,true,true,false,false}; private static boolean[] EE_KEY_USAGE = new boolean[] {true,false,false,false,false,false,false,false,false}; private static CertAndKeyPair createCert(CertAndKeyPair issuer, String subjectDn, boolean ca, boolean kids) throws Exception { KeyPair kp = kpg.generateKeyPair(); return createCert(issuer, subjectDn, ca, kids, kp); } private static CertAndKeyPair createCert(CertAndKeyPair issuer, String subjectDn, boolean ca, boolean kids, KeyPair kp) throws Exception { if (issuer == null) { issuer = new CertAndKeyPair(null, kp); } CertificateBuilder cb = new CertificateBuilder() .setSubjectName(subjectDn) .setPublicKey(kp.getPublic()); if (ca) { cb = cb.addBasicConstraintsExt(true, true, -1) .addKeyUsageExt(CA_KEY_USAGE); } else { cb = cb.addBasicConstraintsExt(true, false, -1) .addKeyUsageExt(EE_KEY_USAGE); } if (kids) { cb = cb.addAuthorityKeyIdExt(issuer.keyPair.getPublic()) .addSubjectKeyIdExt(kp.getPublic()); } X509Certificate cert = cb.build(issuer.cert, issuer.keyPair.getPrivate(), "SHA256withRSA"); return new CertAndKeyPair(cert, kp); } private static Constructor getPKIXCertComparatorCtor() throws Exception { var cl = Class.forName( "sun.security.provider.certpath.ForwardBuilder$PKIXCertComparator"); var c = cl.getDeclaredConstructor(Set.class, X509CertImpl.class); c.setAccessible(true); return c; } }