--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/provider/DSA/TestAlgParameterGenerator.java	Tue Sep 04 18:41:06 2012 -0700
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2012, 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 7044060
+ * @summary verify that DSA parameter generation works
+ * @run main/othervm/timeout=300 TestAlgParameterGenerator
+ */
+import java.security.*;
+import java.security.spec.*;
+import java.security.interfaces.*;
+
+public class TestAlgParameterGenerator {
+
+    private static void checkParamStrength(AlgorithmParameters param,
+                                           int strength) throws Exception {
+        String algo = param.getAlgorithm();
+        if (!algo.equalsIgnoreCase("DSA")) {
+            throw new Exception("Unexpected type of parameters: " + algo);
+        }
+        DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class);
+        int valueL = spec.getP().bitLength();
+        if (strength != valueL) {
+            System.out.println("Expected " + strength + " but actual " + valueL);
+            throw new Exception("Wrong P strength");
+        }
+    }
+    private static void checkParamStrength(AlgorithmParameters param,
+                                           DSAGenParameterSpec genParam)
+        throws Exception {
+        String algo = param.getAlgorithm();
+        if (!algo.equalsIgnoreCase("DSA")) {
+            throw new Exception("Unexpected type of parameters: " + algo);
+        }
+        DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class);
+        int valueL = spec.getP().bitLength();
+        int strength = genParam.getPrimePLength();
+        if (strength != valueL) {
+            System.out.println("P: Expected " + strength + " but actual " + valueL);
+            throw new Exception("Wrong P strength");
+        }
+        int valueN = spec.getQ().bitLength();
+        strength = genParam.getSubprimeQLength();
+        if (strength != valueN) {
+            System.out.println("Q: Expected " + strength + " but actual " + valueN);
+            throw new Exception("Wrong Q strength");
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        AlgorithmParameterGenerator apg =
+            AlgorithmParameterGenerator.getInstance("DSA", "SUN");
+
+        long start, stop;
+        // make sure no-init still works
+        start = System.currentTimeMillis();
+        AlgorithmParameters param = apg.generateParameters();
+        stop = System.currentTimeMillis();
+        System.out.println("Time: " + (stop - start) + " ms.");
+        checkParamStrength(param, 1024);
+
+        // make sure the old model works
+        int[] strengths = { 512, 768, 1024 };
+        for (int i = 0; i < strengths.length; i++) {
+            int sizeP = strengths[i];
+            System.out.println("Generating " + sizeP + "-bit DSA Parameters");
+            start = System.currentTimeMillis();
+            apg.init(sizeP);
+            param = apg.generateParameters();
+            stop = System.currentTimeMillis();
+            System.out.println("Time: " + (stop - start) + " ms.");
+            checkParamStrength(param, sizeP);
+        }
+
+        // now the newer model
+        DSAGenParameterSpec spec1 = new DSAGenParameterSpec(1024, 160);
+        DSAGenParameterSpec spec2 = new DSAGenParameterSpec(2048, 224);
+        DSAGenParameterSpec spec3 = new DSAGenParameterSpec(2048, 256);
+        //DSAGenParameterSpec spec4 = new DSAGenParameterSpec(3072, 256);
+        DSAGenParameterSpec[] specSet = {
+            spec1, spec2, spec3//, spec4
+        };
+        for (int i = 0; i < specSet.length; i++) {
+            DSAGenParameterSpec genParam = specSet[i];
+            System.out.println("Generating (" + genParam.getPrimePLength() +
+                               ", " + genParam.getSubprimeQLength() +
+                               ") DSA Parameters");
+            start = System.currentTimeMillis();
+            apg.init(genParam, null);
+            param = apg.generateParameters();
+            stop = System.currentTimeMillis();
+            System.out.println("Time: " + (stop - start) + " ms.");
+            checkParamStrength(param, genParam);
+        }
+    }
+}