< prev index next >

test/java/math/BigInteger/ModPow65537.java

Print this page




  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  * @library ..
  27  * @bug 4891312 8074460
  28  * @summary verify that modPow() not broken by the special case for 65537 (use -Dseed=X to set PRNG seed)
  29  * @author Andreas Sterbenz

  30  */
  31 
  32 import java.math.BigInteger;
  33 
  34 import java.security.*;
  35 import java.security.spec.*;
  36 
  37 public class ModPow65537 {
  38 
  39     public static void main(String[] args) throws Exception {
  40         // SunRsaSign uses BigInteger internally
  41         KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", "SunRsaSign");
  42         kpg.initialize(new RSAKeyGenParameterSpec(512, BigInteger.valueOf(65537)));
  43         KeyPair kp = kpg.generateKeyPair();
  44         testSigning(kp);
  45 
  46         kpg.initialize(new RSAKeyGenParameterSpec(512, BigInteger.valueOf(65539)));
  47         kp = kpg.generateKeyPair();
  48         testSigning(kp);
  49 




  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  * @library ..
  27  * @bug 4891312 8074460
  28  * @summary verify that modPow() not broken by the special case for 65537 (use -Dseed=X to set PRNG seed)
  29  * @author Andreas Sterbenz
  30  * @key randomness
  31  */
  32 
  33 import java.math.BigInteger;
  34 
  35 import java.security.*;
  36 import java.security.spec.*;
  37 
  38 public class ModPow65537 {
  39 
  40     public static void main(String[] args) throws Exception {
  41         // SunRsaSign uses BigInteger internally
  42         KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", "SunRsaSign");
  43         kpg.initialize(new RSAKeyGenParameterSpec(512, BigInteger.valueOf(65537)));
  44         KeyPair kp = kpg.generateKeyPair();
  45         testSigning(kp);
  46 
  47         kpg.initialize(new RSAKeyGenParameterSpec(512, BigInteger.valueOf(65539)));
  48         kp = kpg.generateKeyPair();
  49         testSigning(kp);
  50 


< prev index next >