undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

test/jdk/sun/security/mscapi/SignUsingSHA2withRSA.java

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+/*
+ * Copyright (c) 2011, 2018, 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.
+ */
+
+/**
+ * @test
+ * @bug 6753664 8180570
+ * @summary Support SHA256 (and higher) in SunMSCAPI
+ * @requires os.family == "windows"
+ * @modules java.base/sun.security.tools.keytool
+ *          java.base/sun.security.x509
+ */
+
+import sun.security.tools.keytool.CertAndKeyGen;
+import sun.security.x509.X500Name;
+
+import java.security.*;
+import java.security.cert.Certificate;
+import java.util.*;
+
+public class SignUsingSHA2withRSA {
+
+    private static final byte[] toBeSigned = new byte[] {
+        0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10
+    };
+
+    private static List<byte[]> generatedSignatures = new ArrayList<>();
+
+    public static void main(String[] args) throws Exception {
+        KeyStore ks = KeyStore.getInstance("Windows-MY");
+        ks.load(null, null);
+        if (ks.containsAlias("6753664")) {
+            ks.deleteEntry("6753664");
+        }
+
+        CertAndKeyGen gen = new CertAndKeyGen("RSA", "SHA256withRSA");
+        gen.generate(2048);
+
+        ks.setKeyEntry("6753664", gen.getPrivateKey(), null,
+                new Certificate[] {
+                        gen.getSelfCertificate(new X500Name("cn=localhost,c=US"), 100)
+                });
+
+        try {
+            run();
+        } finally {
+            ks.deleteEntry("6753664");
+            ks.store(null, null);
+        }
+    }
+
+    static void run() throws Exception {
+
+        Provider[] providers = Security.getProviders("Signature.SHA256withRSA");
+        if (providers == null) {
+            System.out.println("No JCE providers support the " +
+                "'Signature.SHA256withRSA' algorithm");
+            System.out.println("Skipping this test...");
+            return;
+
+        } else {
+            System.out.println("The following JCE providers support the " +
+                "'Signature.SHA256withRSA' algorithm: ");
+            for (Provider provider : providers) {
+                System.out.println("    " + provider.getName());
+            }
+        }
+        System.out.println("-------------------------------------------------");
+
+        KeyStore ks = KeyStore.getInstance("Windows-MY", "SunMSCAPI");
+        ks.load(null, null);
+        System.out.println("Loaded keystore: Windows-MY");
+
+        Enumeration<String> e = ks.aliases();
+        PrivateKey privateKey = null;
+        PublicKey publicKey = null;
+
+        while (e.hasMoreElements()) {
+            String alias = e.nextElement();
+            if (alias.equals("6753664")) {
+                System.out.println("Loaded entry: " + alias);
+                privateKey = (PrivateKey) ks.getKey(alias, null);
+                publicKey = (PublicKey) ks.getCertificate(alias).getPublicKey();
+            }
+        }
+        if (privateKey == null || publicKey == null) {
+            throw new Exception("Cannot load the keys need to run this test");
+        }
+        System.out.println("-------------------------------------------------");
+
+        generatedSignatures.add(signUsing("SHA256withRSA", privateKey));
+        generatedSignatures.add(signUsing("SHA384withRSA", privateKey));
+        generatedSignatures.add(signUsing("SHA512withRSA", privateKey));
+
+        System.out.println("-------------------------------------------------");
+
+        verifyUsing("SHA256withRSA", publicKey, generatedSignatures.get(0));
+        verifyUsing("SHA384withRSA", publicKey, generatedSignatures.get(1));
+        verifyUsing("SHA512withRSA", publicKey, generatedSignatures.get(2));
+
+        System.out.println("-------------------------------------------------");
+    }
+
+    private static byte[] signUsing(String signAlgorithm,
+        PrivateKey privateKey) throws Exception {
+
+        // Must explicitly specify the SunMSCAPI JCE provider
+        // (otherwise SunJCE is chosen because it appears earlier in the list)
+        Signature sig1 = Signature.getInstance(signAlgorithm, "SunMSCAPI");
+        if (sig1 == null) {
+            throw new Exception("'" + signAlgorithm + "' is not supported");
+        }
+        System.out.println("Using " + signAlgorithm + " signer from the " +
+            sig1.getProvider().getName() + " JCE provider");
+
+        System.out.println("Using key: " + privateKey);
+        sig1.initSign(privateKey);
+        sig1.update(toBeSigned);
+        byte [] sigBytes = null;
+
+        try {
+            sigBytes = sig1.sign();
+            System.out.println("Generated RSA signature over a " +
+                toBeSigned.length + "-byte data (signature length: " +
+                sigBytes.length * 8 + " bits)");
+            System.out.println(String.format("0x%0" +
+                (sigBytes.length * 2) + "x",
+                new java.math.BigInteger(1, sigBytes)));
+
+        } catch (SignatureException se) {
+                System.out.println("Error generating RSA signature: " + se);
+        }
+
+        return sigBytes;
+    }
+
+    private static void verifyUsing(String signAlgorithm, PublicKey publicKey,
+        byte[] signature) throws Exception {
+
+        // Must explicitly specify the SunMSCAPI JCE provider
+        // (otherwise SunJCE is chosen because it appears earlier in the list)
+        Signature sig1 = Signature.getInstance(signAlgorithm, "SunMSCAPI");
+        if (sig1 == null) {
+            throw new Exception("'" + signAlgorithm + "' is not supported");
+        }
+        System.out.println("Using " + signAlgorithm + " verifier from the "
+            + sig1.getProvider().getName() + " JCE provider");
+
+        System.out.println("Using key: " + publicKey);
+
+        System.out.println("\nVerifying RSA Signature over a " +
+            toBeSigned.length + "-byte data (signature length: " +
+            signature.length * 8 + " bits)");
+        System.out.println(String.format("0x%0" + (signature.length * 2) +
+            "x", new java.math.BigInteger(1, signature)));
+
+        sig1.initVerify(publicKey);
+        sig1.update(toBeSigned);
+
+        if (sig1.verify(signature)) {
+            System.out.println("Verify PASSED\n");
+        } else {
+            throw new Exception("Verify FAILED");
+        }
+    }
+}