/* * Copyright (c) 2025, 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 jdk.test.lib.Asserts.assertEquals; import static jdk.test.lib.Asserts.assertTrue; import static jdk.test.lib.Utils.runAndCheckException; import java.io.IOException; import java.math.BigInteger; import java.security.KeyPair; import java.security.KeyPairGenerator; import java.security.KeyStore; import java.security.PublicKey; import java.security.SecureRandom; import java.security.Security; import java.security.cert.CertPathValidatorException; import java.security.cert.CertificateException; import java.security.cert.X509Certificate; import java.time.Instant; import java.time.temporal.ChronoUnit; import java.util.Date; import javax.net.ssl.SSLEngine; import javax.net.ssl.TrustManagerFactory; import javax.net.ssl.X509ExtendedTrustManager; import jdk.test.lib.security.CertificateBuilder; import sun.security.provider.certpath.SunCertPathBuilderException; import sun.security.validator.ValidatorException; import sun.security.x509.AuthorityKeyIdentifierExtension; import sun.security.x509.GeneralName; import sun.security.x509.GeneralNames; import sun.security.x509.KeyIdentifier; import sun.security.x509.SerialNumber; import sun.security.x509.X500Name; /* * @test * @bug 8367104 * @summary Check for RSASSA-PSS parameters when validating certificates * against algorithm constraints. * @modules java.base/sun.security.x509 * java.base/sun.security.util * java.base/sun.security.validator * java.base/sun.security.provider.certpath * @library /javax/net/ssl/templates * /test/lib * @run main/othervm CertChainAlgorithmConstraints RSASSA-PSS RSASSA-PSS Rsa_pss_pss_Sha384 true * @run main/othervm CertChainAlgorithmConstraints RSASSA-PSS RSASSA-PSS RsaSsa-Pss true * @run main/othervm CertChainAlgorithmConstraints RSA RSASSA-PSS rsa_pss_Rsae_sha384 true * @run main/othervm CertChainAlgorithmConstraints RSA RSASSA-PSS Rsa true * @run main/othervm CertChainAlgorithmConstraints RSA RSASSA-PSS RSASSA-pSS true * @run main/othervm CertChainAlgorithmConstraints RSA SHA384withRSA rsa_pkcs1_Sha384 true * @run main/othervm CertChainAlgorithmConstraints EC SHA384withECDSA Ecdsa_Secp384r1_sha384 true * @run main/othervm CertChainAlgorithmConstraints RSA SHA384withRSA SHA384withRsA true * @run main/othervm CertChainAlgorithmConstraints RSASSA-PSS RSASSA-PSS rsa_pss_rsae_sha384 false * @run main/othervm CertChainAlgorithmConstraints RSA RSASSA-PSS rsa_pss_pss_sha384 false * @run main/othervm CertChainAlgorithmConstraints RSASSA-PSS RSASSA-PSS rsa_pss_pss_sha256 false * @run main/othervm CertChainAlgorithmConstraints RSASSA-PSS RSASSA-PSS rsa_pss_pss_sha512 false * @run main/othervm CertChainAlgorithmConstraints RSASSA-PSS RSASSA-PSS RSA false * @run main/othervm CertChainAlgorithmConstraints RSA RSASSA-PSS rsa_pss_rsae_sha512 false * @run main/othervm CertChainAlgorithmConstraints RSA SHA384withRSA rsa_pkcs1_sha256 false * @run main/othervm CertChainAlgorithmConstraints EC SHA384withECDSA ecdsa_secp256r1_sha256 false * @run main/othervm CertChainAlgorithmConstraints EC SHA384withECDSA SHA512withECDSA false */ // Testing that an algorithm can be disabled with both a PKIXCertPathValidator // and a CertPathBuilder code paths. It is somewhat common for JSSE to fall // back to using a CertPathBuilder to find a valid chain. public class CertChainAlgorithmConstraints extends SSLEngineTemplate { private final String keyAlg; private final String certSigAlg; private final boolean fail; private X509Certificate trustedCert; private X509Certificate serverCert; private X509Certificate linkCert1; private X509Certificate linkCert2; protected CertChainAlgorithmConstraints( String keyAlg, String certSigAlg, boolean fail) throws Exception { super(); this.keyAlg = keyAlg; this.certSigAlg = certSigAlg; this.fail = fail; setupCertificates(); } public static void main(String[] args) throws Exception { if (args.length != 4) { throw new RuntimeException("Wrong number of arguments"); } String keyAlg = args[0]; String certSigAlg = args[1]; String constraintAlgo = args[2]; boolean fail = Boolean.parseBoolean(args[3]); // Note: CertificateBuilder generates RSASSA-PSS certificate // signature using SHA-384 digest algorithm by default. Security.setProperty("jdk.tls.disabledAlgorithms", constraintAlgo + " usage CertificateSignature"); new CertChainAlgorithmConstraints(keyAlg, certSigAlg, fail).run(); } // Run things in TLS handshake order. protected void run() throws Exception { // Produce client_hello clientEngine.wrap(clientOut, cTOs); cTOs.flip(); // Consume client_hello. serverEngine.unwrap(cTOs, serverIn); runDelegatedTasks(serverEngine); // Produce server_hello. serverEngine.wrap(serverOut, sTOc); sTOc.flip(); // Now that we have a Handshake session attached to the serverEngine, // do the check. checkChain(serverEngine); } protected void checkChain(SSLEngine engine) throws Exception { // Create a key store. KeyStore ks = KeyStore.getInstance("PKCS12"); ks.load(null, null); // Import the trusted cert. ks.setCertificateEntry("Trusted", trustedCert); TrustManagerFactory tmf = TrustManagerFactory.getInstance("PKIX"); // Init TrustManager with a Key Store. tmf.init(ks); // Generate a mixed-up certificate chain. X509Certificate[] mixedUpChain = new X509Certificate[3]; mixedUpChain[0] = linkCert2; // Put EE cert between 2 link certs to mix up the chain. mixedUpChain[1] = serverCert; mixedUpChain[2] = linkCert1; // Generate a valid certificate chain - we should get the same // results with it but a different code path to be used. X509Certificate[] validChain = new X509Certificate[3]; validChain[0] = serverCert; validChain[1] = linkCert2; validChain[2] = linkCert1; var tm = (X509ExtendedTrustManager) tmf.getTrustManagers()[0]; if (fail) { // Mixed-up chain: CertPathBuilder code path. runAndCheckException( () -> tm.checkServerTrusted(mixedUpChain, "RSA", engine), ex -> { assertTrue(ex instanceof ValidatorException); assertTrue( ex.getCause() instanceof SunCertPathBuilderException); assertEquals(ex.getMessage(), "PKIX path " + "building failed: " + "sun.security.provider.certpath." + "SunCertPathBuilderException: unable to find " + "valid certification path to requested target"); }); // Valid chain: PKIXCertPathValidator code path. runAndCheckException( () -> tm.checkServerTrusted(validChain, "RSA", engine), ex -> { assertTrue(ex instanceof ValidatorException); assertTrue( ex.getCause() instanceof CertPathValidatorException); assertTrue(ex.getMessage().startsWith("PKIX path " + "validation failed: java.security.cert." + "CertPathValidatorException: Algorithm " + "constraints check failed on " + certSigAlg + " signature and " + keyAlg + " key")); }); } else { tm.checkServerTrusted(mixedUpChain, "RSA", engine); tm.checkServerTrusted(validChain, "RSA", engine); } } // Certificate-building helper methods. private void setupCertificates() throws Exception { var kpg = KeyPairGenerator.getInstance(keyAlg); var caKeys = kpg.generateKeyPair(); var serverKeys = kpg.generateKeyPair(); var linkKeys1 = kpg.generateKeyPair(); var linkKeys2 = kpg.generateKeyPair(); this.trustedCert = createTrustedCert(caKeys, certSigAlg); this.linkCert1 = customCertificateBuilder( "O=Link1, L=Some-City, ST=Some-State, C=US", linkKeys1.getPublic(), caKeys.getPublic()) .addBasicConstraintsExt(true, true, -1) .build(trustedCert, caKeys.getPrivate(), certSigAlg); this.linkCert2 = customCertificateBuilder( "O=Link2, L=Some-City, ST=Some-State, C=US", linkKeys2.getPublic(), linkKeys1.getPublic()) .addBasicConstraintsExt(true, true, -1) .build(linkCert1, linkKeys1.getPrivate(), certSigAlg); this.serverCert = customCertificateBuilder( "O=Some-Org, L=Some-City, ST=Some-State, C=US", serverKeys.getPublic(), linkKeys2.getPublic()) .addBasicConstraintsExt(false, false, -1) .build(linkCert2, linkKeys2.getPrivate(), certSigAlg); } private static X509Certificate createTrustedCert( KeyPair caKeys, String certSigAlg) throws Exception { SecureRandom random = new SecureRandom(); KeyIdentifier kid = new KeyIdentifier(caKeys.getPublic()); GeneralNames gns = new GeneralNames(); GeneralName name = new GeneralName(new X500Name( "O=Trusted-Org, L=Some-City, ST=Some-State, C=US")); gns.add(name); BigInteger serialNumber = BigInteger.valueOf( random.nextLong(1000000) + 1); return customCertificateBuilder( name.toString(), caKeys.getPublic(), caKeys.getPublic()) .setSerialNumber(serialNumber) .addExtension(new AuthorityKeyIdentifierExtension(kid, gns, new SerialNumber(serialNumber))) .addBasicConstraintsExt(true, true, -1) .build(null, caKeys.getPrivate(), certSigAlg); } private static CertificateBuilder customCertificateBuilder( String subjectName, PublicKey publicKey, PublicKey caKey) throws CertificateException, IOException { SecureRandom random = new SecureRandom(); CertificateBuilder builder = new CertificateBuilder() .setSubjectName(subjectName) .setPublicKey(publicKey) .setNotBefore( Date.from(Instant.now().minus(1, ChronoUnit.HOURS))) .setNotAfter(Date.from(Instant.now().plus(1, ChronoUnit.HOURS))) .setSerialNumber( BigInteger.valueOf(random.nextLong(1000000) + 1)) .addSubjectKeyIdExt(publicKey) .addAuthorityKeyIdExt(caKey); builder.addKeyUsageExt( new boolean[]{true, true, true, true, true, true}); return builder; } }