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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* 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.
*
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*/
/**
* @test
* @bug 4915392
* @summary test that the getAlgorithm() method works correctly
* @author Andreas Sterbenz
*/
import java.io.*;
import java.security.*;
public class GetAlgorithm {
private final static String BASE = System.getProperty("test.src", ".");
public static void main(String[] args) throws Exception {
SecureRandom sr;
sr = new SecureRandom();
if (sr.getAlgorithm().equals("unknown")) {
throw new Exception("Unknown: " + sr.getAlgorithm());
}
sr = SecureRandom.getInstance("SHA1PRNG");
check("SHA1PRNG", sr);
// OutputStream out = new FileOutputStream("sha1prng.bin");
// ObjectOutputStream oout = new ObjectOutputStream(out);
// sr.nextInt();
// oout.writeObject(sr);
// oout.flush();
// oout.close();
sr = new MySecureRandom();
check("unknown", sr);
InputStream in = new FileInputStream(new File(BASE, "sha1prng-old.bin"));
ObjectInputStream oin = new ObjectInputStream(in);
sr = (SecureRandom)oin.readObject();
oin.close();
check("unknown", sr);
in = new FileInputStream(new File(BASE, "sha1prng-new.bin"));
oin = new ObjectInputStream(in);
sr = (SecureRandom)oin.readObject();
oin.close();
check("SHA1PRNG", sr);
System.out.println("All tests passed");
}
private static void check(String s1, SecureRandom sr) throws Exception {
String s2 = sr.getAlgorithm();
if (s1.equals(s2) == false) {
throw new Exception("Expected " + s1 + ", got " + s2);
}
}
private static class MySecureRandom extends SecureRandom {
}
}