8139565: Restrict certificates with DSA keys less than 1024 bits
Reviewed-by: mullan
--- a/jdk/src/java.base/share/classes/sun/security/util/KeyUtil.java Wed Feb 17 17:47:25 2016 -0800
+++ b/jdk/src/java.base/share/classes/sun/security/util/KeyUtil.java Thu Feb 18 02:36:38 2016 +0000
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2016, 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
@@ -32,6 +32,7 @@
import java.security.interfaces.ECKey;
import java.security.interfaces.RSAKey;
import java.security.interfaces.DSAKey;
+import java.security.interfaces.DSAParams;
import java.security.SecureRandom;
import java.security.spec.KeySpec;
import javax.crypto.SecretKey;
@@ -87,7 +88,8 @@
size = pubk.getParams().getOrder().bitLength();
} else if (key instanceof DSAKey) {
DSAKey pubk = (DSAKey)key;
- size = pubk.getParams().getP().bitLength();
+ DSAParams params = pubk.getParams(); // params can be null
+ size = (params != null) ? params.getP().bitLength() : -1;
} else if (key instanceof DHKey) {
DHKey pubk = (DHKey)key;
size = pubk.getParams().getP().bitLength();
--- a/jdk/src/java.base/share/conf/security/java.security Wed Feb 17 17:47:25 2016 -0800
+++ b/jdk/src/java.base/share/conf/security/java.security Thu Feb 18 02:36:38 2016 +0000
@@ -549,7 +549,8 @@
# jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048
#
#
-jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
+jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024, \
+ DSA keySize < 1024
# Algorithm restrictions for Secure Socket Layer/Transport Layer Security
# (SSL/TLS/DTLS) processing
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/net/ssl/TLSv12/DisabledShortDSAKeys.java Thu Feb 18 02:36:38 2016 +0000
@@ -0,0 +1,441 @@
+/*
+ * Copyright (c) 2016, 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. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+// SunJSSE does not support dynamic system properties, no way to re-use
+// system properties in samevm/agentvm mode.
+
+/*
+ * @test
+ * @bug 8139565
+ * @summary Restrict certificates with DSA keys less than 1024 bits
+ *
+ * @run main/othervm DisabledShortDSAKeys PKIX TLSv1.2
+ * @run main/othervm DisabledShortDSAKeys SunX509 TLSv1.2
+ * @run main/othervm DisabledShortDSAKeys PKIX TLSv1.1
+ * @run main/othervm DisabledShortDSAKeys SunX509 TLSv1.1
+ * @run main/othervm DisabledShortDSAKeys PKIX TLSv1
+ * @run main/othervm DisabledShortDSAKeys SunX509 TLSv1
+ * @run main/othervm DisabledShortDSAKeys PKIX SSLv3
+ * @run main/othervm DisabledShortDSAKeys SunX509 SSLv3
+ */
+
+import java.net.*;
+import java.util.*;
+import java.io.*;
+import javax.net.ssl.*;
+import java.security.Security;
+import java.security.KeyStore;
+import java.security.KeyFactory;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateFactory;
+import java.security.spec.*;
+import java.security.interfaces.*;
+import java.util.Base64;
+
+
+public class DisabledShortDSAKeys {
+
+ /*
+ * =============================================================
+ * Set the various variables needed for the tests, then
+ * specify what tests to run on each side.
+ */
+
+ /*
+ * Should we run the client or server in a separate thread?
+ * Both sides can throw exceptions, but do you have a preference
+ * as to which side should be the main thread.
+ */
+ static boolean separateServerThread = true;
+
+ /*
+ * Where do we find the keystores?
+ */
+ // Certificates and key used in the test.
+ static String trustedCertStr =
+ "-----BEGIN CERTIFICATE-----\n" +
+ "MIIDDjCCAs2gAwIBAgIJAO5/hbm1ByJOMAkGByqGSM44BAMwHzELMAkGA1UEBhMC\n" +
+ "VVMxEDAOBgNVBAoTB0V4YW1wbGUwHhcNMTYwMjE2MDQzNTQ2WhcNMzcwMTI2MDQz\n" +
+ "NTQ2WjAfMQswCQYDVQQGEwJVUzEQMA4GA1UEChMHRXhhbXBsZTCCAbgwggEsBgcq\n" +
+ "hkjOOAQBMIIBHwKBgQC4aSK8nBYdWJtuBkz6yoDyjZnNuGFSpDmx1ggKpLpcnPuw\n" +
+ "YKAbUhqdYhZtaIqQ4aO0T1ZS/HuOM0zvddnMUidFNX3RUvDkvdD/JYOnjqzCm+xW\n" +
+ "U0NFuPHZdapQY5KFk3ugkqZpHLY1StZbu0qugZOZjbBOMwB7cHAbMDuVpEr8DQIV\n" +
+ "AOi+ig+h3okFbWEE9MztiI2+DqNrAoGBAKh2EZbuWU9NoHglhVzfDUoz8CeyW6W6\n" +
+ "rUZuIOQsjWaYOeRPWX0UVAGq9ykIOfamEpurKt4H8ge/pHaL9iazJjonMHOXG12A\n" +
+ "0lALsMDGv22zVaJzXjOBvdPzc87opr0LIVgHASKOcDYjsICKNYPlS2cL3MJoD+bj\n" +
+ "NAR67b90VBbEA4GFAAKBgQCGrkRp2tdj2mZF7Qz0tO6p3xSysbEfN6QZxOJYPTvM\n" +
+ "yIYfLV9Yoy7XaRd/mCpJo/dqmsZMzowtyi+u+enuVpOLKiq/lyCktL+xUzZAjLT+\n" +
+ "9dafHlS1wR3pDSa1spo9xTEi4Ff/DQDHcdGalBxSXX/UdRtSecIYAp5/fkt3QZ5v\n" +
+ "0aOBkTCBjjAdBgNVHQ4EFgQUX4qbP5PgBx1J8BJ8qEgfoKVLSnQwTwYDVR0jBEgw\n" +
+ "RoAUX4qbP5PgBx1J8BJ8qEgfoKVLSnShI6QhMB8xCzAJBgNVBAYTAlVTMRAwDgYD\n" +
+ "VQQKEwdFeGFtcGxlggkA7n+FubUHIk4wDwYDVR0TAQH/BAUwAwEB/zALBgNVHQ8E\n" +
+ "BAMCAgQwCQYHKoZIzjgEAwMwADAtAhUAkr5bINXyy/McAx6qwhb6r0/QJUgCFFUP\n" +
+ "CZokA4/NqJIgq8ThpTQAE8SB\n" +
+ "-----END CERTIFICATE-----";
+
+ static String targetCertStr =
+ "-----BEGIN CERTIFICATE-----\n" +
+ "MIICUjCCAhGgAwIBAgIJAIiDrs/4W8rtMAkGByqGSM44BAMwHzELMAkGA1UEBhMC\n" +
+ "VVMxEDAOBgNVBAoTB0V4YW1wbGUwHhcNMTYwMjE2MDQzNTQ2WhcNMzUxMTAzMDQz\n" +
+ "NTQ2WjA5MQswCQYDVQQGEwJVUzEQMA4GA1UECgwHRXhhbXBsZTEYMBYGA1UEAwwP\n" +
+ "d3d3LmV4YW1wbGUuY29tMIHwMIGoBgcqhkjOOAQBMIGcAkEAs6A0p3TysTtVXGSv\n" +
+ "ThR/8GHpbL49KyWRJBMIlmLc5jl/wxJgnL1t07p4YTOEa6ecyTFos04Z8n2GARmp\n" +
+ "zYlUywIVAJLDcf4JXhZbguRFSQdWwWhZkh+LAkBLCzh3Xvpmc/5CDqU+QHqDcuSk\n" +
+ "5B8+ZHaHRi2KQ00ejilpF2qZpW5JdHe4m3Pggh0MIuaAGX+leM4JKlnObj14A0MA\n" +
+ "AkAYb+DYlFgStFhF1ip7rFzY8K6i/3ellkXI2umI/XVwxUQTHSlk5nFOep5Dfzm9\n" +
+ "pADJwuSe1qGHsHB5LpMZPVpto4GEMIGBMAkGA1UdEwQCMAAwCwYDVR0PBAQDAgPo\n" +
+ "MB0GA1UdDgQWBBT8nsFyccF4q1dtpWE1dkNK5UiXtTAfBgNVHSMEGDAWgBRfips/\n" +
+ "k+AHHUnwEnyoSB+gpUtKdDAnBgNVHSUEIDAeBggrBgEFBQcDAQYIKwYBBQUHAwIG\n" +
+ "CCsGAQUFBwMDMAkGByqGSM44BAMDMAAwLQIUIcIlxpIwaZXdpMC+U076unR1Mp8C\n" +
+ "FQCD/NE8O0xwq57nwFfp7tUvUHYMMA==\n" +
+ "-----END CERTIFICATE-----";
+
+ // Private key in the format of PKCS#8, key size is 512 bits.
+ static String targetPrivateKey =
+ "MIHGAgEAMIGoBgcqhkjOOAQBMIGcAkEAs6A0p3TysTtVXGSvThR/8GHpbL49KyWR\n" +
+ "JBMIlmLc5jl/wxJgnL1t07p4YTOEa6ecyTFos04Z8n2GARmpzYlUywIVAJLDcf4J\n" +
+ "XhZbguRFSQdWwWhZkh+LAkBLCzh3Xvpmc/5CDqU+QHqDcuSk5B8+ZHaHRi2KQ00e\n" +
+ "jilpF2qZpW5JdHe4m3Pggh0MIuaAGX+leM4JKlnObj14BBYCFHB2Wek2g5hpNj5y\n" +
+ "RQfCc6CFO0dv";
+
+ static char passphrase[] = "passphrase".toCharArray();
+
+ /*
+ * Is the server ready to serve?
+ */
+ volatile static boolean serverReady = false;
+
+ /*
+ * Turn on SSL debugging?
+ */
+ static boolean debug = false;
+
+ /*
+ * Define the server side of the test.
+ *
+ * If the server prematurely exits, serverReady will be set to true
+ * to avoid infinite hangs.
+ */
+ void doServerSide() throws Exception {
+ SSLContext context = generateSSLContext(null, targetCertStr,
+ targetPrivateKey);
+ SSLServerSocketFactory sslssf = context.getServerSocketFactory();
+ SSLServerSocket sslServerSocket =
+ (SSLServerSocket)sslssf.createServerSocket(serverPort);
+ serverPort = sslServerSocket.getLocalPort();
+
+ /*
+ * Signal Client, we're ready for his connect.
+ */
+ serverReady = true;
+
+ try (SSLSocket sslSocket = (SSLSocket)sslServerSocket.accept()) {
+ try (InputStream sslIS = sslSocket.getInputStream()) {
+ sslIS.read();
+ }
+
+ throw new Exception(
+ "DSA keys shorter than 1024 bits should be disabled");
+ } catch (SSLHandshakeException sslhe) {
+ // the expected exception, ignore
+ }
+ }
+
+ /*
+ * Define the client side of the test.
+ *
+ * If the server prematurely exits, serverReady will be set to true
+ * to avoid infinite hangs.
+ */
+ void doClientSide() throws Exception {
+
+ /*
+ * Wait for server to get started.
+ */
+ while (!serverReady) {
+ Thread.sleep(50);
+ }
+
+ SSLContext context = generateSSLContext(trustedCertStr, null, null);
+ SSLSocketFactory sslsf = context.getSocketFactory();
+
+ try (SSLSocket sslSocket =
+ (SSLSocket)sslsf.createSocket("localhost", serverPort)) {
+
+ // only enable the target protocol
+ sslSocket.setEnabledProtocols(new String[] {enabledProtocol});
+
+ // enable a block cipher
+ sslSocket.setEnabledCipherSuites(
+ new String[] {"TLS_DHE_DSS_WITH_AES_128_CBC_SHA"});
+
+ try (OutputStream sslOS = sslSocket.getOutputStream()) {
+ sslOS.write('B');
+ sslOS.flush();
+ }
+
+ throw new Exception(
+ "DSA keys shorter than 1024 bits should be disabled");
+ } catch (SSLHandshakeException sslhe) {
+ // the expected exception, ignore
+ }
+ }
+
+ /*
+ * =============================================================
+ * The remainder is just support stuff
+ */
+ private static String tmAlgorithm; // trust manager
+ private static String enabledProtocol; // the target protocol
+
+ private static void parseArguments(String[] args) {
+ tmAlgorithm = args[0];
+ enabledProtocol = args[1];
+ }
+
+ private static SSLContext generateSSLContext(String trustedCertStr,
+ String keyCertStr, String keySpecStr) throws Exception {
+
+ // generate certificate from cert string
+ CertificateFactory cf = CertificateFactory.getInstance("X.509");
+
+ // create a key store
+ KeyStore ks = KeyStore.getInstance("JKS");
+ ks.load(null, null);
+
+ // import the trused cert
+ Certificate trusedCert = null;
+ ByteArrayInputStream is = null;
+ if (trustedCertStr != null) {
+ is = new ByteArrayInputStream(trustedCertStr.getBytes());
+ trusedCert = cf.generateCertificate(is);
+ is.close();
+
+ ks.setCertificateEntry("DSA Export Signer", trusedCert);
+ }
+
+ if (keyCertStr != null) {
+ // generate the private key.
+ PKCS8EncodedKeySpec priKeySpec = new PKCS8EncodedKeySpec(
+ Base64.getMimeDecoder().decode(keySpecStr));
+ KeyFactory kf = KeyFactory.getInstance("DSA");
+ DSAPrivateKey priKey =
+ (DSAPrivateKey)kf.generatePrivate(priKeySpec);
+
+ // generate certificate chain
+ is = new ByteArrayInputStream(keyCertStr.getBytes());
+ Certificate keyCert = cf.generateCertificate(is);
+ is.close();
+
+ Certificate[] chain = null;
+ if (trusedCert != null) {
+ chain = new Certificate[2];
+ chain[0] = keyCert;
+ chain[1] = trusedCert;
+ } else {
+ chain = new Certificate[1];
+ chain[0] = keyCert;
+ }
+
+ // import the key entry.
+ ks.setKeyEntry("Whatever", priKey, passphrase, chain);
+ }
+
+ // create SSL context
+ TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmAlgorithm);
+ tmf.init(ks);
+
+ SSLContext ctx = SSLContext.getInstance("TLS");
+ if (keyCertStr != null && !keyCertStr.isEmpty()) {
+ KeyManagerFactory kmf = KeyManagerFactory.getInstance("NewSunX509");
+ kmf.init(ks, passphrase);
+
+ ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
+ ks = null;
+ } else {
+ ctx.init(null, tmf.getTrustManagers(), null);
+ }
+
+ return ctx;
+ }
+
+
+ // use any free port by default
+ volatile int serverPort = 0;
+
+ volatile Exception serverException = null;
+ volatile Exception clientException = null;
+
+ public static void main(String[] args) throws Exception {
+ if (debug)
+ System.setProperty("javax.net.debug", "all");
+
+ /*
+ * Get the customized arguments.
+ */
+ parseArguments(args);
+
+ /*
+ * Start the tests.
+ */
+ new DisabledShortDSAKeys();
+ }
+
+ Thread clientThread = null;
+ Thread serverThread = null;
+
+ /*
+ * Primary constructor, used to drive remainder of the test.
+ *
+ * Fork off the other side, then do your work.
+ */
+ DisabledShortDSAKeys() throws Exception {
+ Exception startException = null;
+ try {
+ if (separateServerThread) {
+ startServer(true);
+ startClient(false);
+ } else {
+ startClient(true);
+ startServer(false);
+ }
+ } catch (Exception e) {
+ startException = e;
+ }
+
+ /*
+ * Wait for other side to close down.
+ */
+ if (separateServerThread) {
+ if (serverThread != null) {
+ serverThread.join();
+ }
+ } else {
+ if (clientThread != null) {
+ clientThread.join();
+ }
+ }
+
+ /*
+ * When we get here, the test is pretty much over.
+ * Which side threw the error?
+ */
+ Exception local;
+ Exception remote;
+
+ if (separateServerThread) {
+ remote = serverException;
+ local = clientException;
+ } else {
+ remote = clientException;
+ local = serverException;
+ }
+
+ Exception exception = null;
+
+ /*
+ * Check various exception conditions.
+ */
+ if ((local != null) && (remote != null)) {
+ // If both failed, return the curthread's exception.
+ local.initCause(remote);
+ exception = local;
+ } else if (local != null) {
+ exception = local;
+ } else if (remote != null) {
+ exception = remote;
+ } else if (startException != null) {
+ exception = startException;
+ }
+
+ /*
+ * If there was an exception *AND* a startException,
+ * output it.
+ */
+ if (exception != null) {
+ if (exception != startException && startException != null) {
+ exception.addSuppressed(startException);
+ }
+ throw exception;
+ }
+
+ // Fall-through: no exception to throw!
+ }
+
+ void startServer(boolean newThread) throws Exception {
+ if (newThread) {
+ serverThread = new Thread() {
+ public void run() {
+ try {
+ doServerSide();
+ } catch (Exception e) {
+ /*
+ * Our server thread just died.
+ *
+ * Release the client, if not active already...
+ */
+ System.err.println("Server died...");
+ serverReady = true;
+ serverException = e;
+ }
+ }
+ };
+ serverThread.start();
+ } else {
+ try {
+ doServerSide();
+ } catch (Exception e) {
+ serverException = e;
+ } finally {
+ serverReady = true;
+ }
+ }
+ }
+
+ void startClient(boolean newThread) throws Exception {
+ if (newThread) {
+ clientThread = new Thread() {
+ public void run() {
+ try {
+ doClientSide();
+ } catch (Exception e) {
+ /*
+ * Our client thread just died.
+ */
+ System.err.println("Client died...");
+ clientException = e;
+ }
+ }
+ };
+ clientThread.start();
+ } else {
+ try {
+ doClientSide();
+ } catch (Exception e) {
+ clientException = e;
+ }
+ }
+ }
+}