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test/jdk/java/security/SecureRandom/SerializedSeedTest.java

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rev 51789 : [mq]: asserts


   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8141039
  27  * @library /lib/testlibrary
  28  * @summary When random number is generated through the a SecureRandom instance
  29  *          as well from it's serialized instance in the same time then the
  30  *          generated random numbers should be different when one or both are
  31  *          reseeded.
  32  * @run main/othervm -Djava.security.egd=file:/dev/urandom SerializedSeedTest
  33  */
  34 import java.io.ByteArrayOutputStream;
  35 import java.io.IOException;
  36 import java.io.ObjectInputStream;
  37 import java.io.ObjectOutputStream;
  38 import java.io.ByteArrayInputStream;
  39 import java.security.NoSuchAlgorithmException;
  40 import java.security.SecureRandom;
  41 import java.security.Security;
  42 import jdk.testlibrary.Asserts;
  43 
  44 public class SerializedSeedTest {
  45 
  46     private static final byte[] SEED = "seed".getBytes();
  47     private static final String DRBG_CONFIG = "securerandom.drbg.config";
  48     private static final String DRBG_CONFIG_VALUE
  49             = Security.getProperty(DRBG_CONFIG);
  50 
  51     public static void main(String[] args) {
  52         boolean success = true;
  53 
  54         for (String mech : new String[]{
  55             "SHA1PRNG", "Hash_DRBG", "HMAC_DRBG", "CTR_DRBG"}) {
  56             System.out.printf(
  57                     "%nRunning test for SecureRandom mechanism: '%s'", mech);
  58             try {
  59                 // Serialize without seed and compare generated random numbers
  60                 // produced through original and serialized instances.
  61                 SecureRandom orig = getSRInstance(mech);
  62                 SecureRandom copy = deserializedCopy(orig);




   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8141039
  27  * @library /test/lib
  28  * @summary When random number is generated through the a SecureRandom instance
  29  *          as well from it's serialized instance in the same time then the
  30  *          generated random numbers should be different when one or both are
  31  *          reseeded.
  32  * @run main/othervm -Djava.security.egd=file:/dev/urandom SerializedSeedTest
  33  */
  34 import java.io.ByteArrayOutputStream;
  35 import java.io.IOException;
  36 import java.io.ObjectInputStream;
  37 import java.io.ObjectOutputStream;
  38 import java.io.ByteArrayInputStream;
  39 import java.security.NoSuchAlgorithmException;
  40 import java.security.SecureRandom;
  41 import java.security.Security;
  42 import jdk.test.lib.Asserts;
  43 
  44 public class SerializedSeedTest {
  45 
  46     private static final byte[] SEED = "seed".getBytes();
  47     private static final String DRBG_CONFIG = "securerandom.drbg.config";
  48     private static final String DRBG_CONFIG_VALUE
  49             = Security.getProperty(DRBG_CONFIG);
  50 
  51     public static void main(String[] args) {
  52         boolean success = true;
  53 
  54         for (String mech : new String[]{
  55             "SHA1PRNG", "Hash_DRBG", "HMAC_DRBG", "CTR_DRBG"}) {
  56             System.out.printf(
  57                     "%nRunning test for SecureRandom mechanism: '%s'", mech);
  58             try {
  59                 // Serialize without seed and compare generated random numbers
  60                 // produced through original and serialized instances.
  61                 SecureRandom orig = getSRInstance(mech);
  62                 SecureRandom copy = deserializedCopy(orig);


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