Test4512524.java

/*
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 4512524
 * @summary Verify that AES cipher can work with mode "CBC", "OFB", "CFB"
 * @author Valerie Peng
 */
import java.io.PrintStream;
import java.security.*;
import java.security.spec.*;
import java.util.Random;

import javax.crypto.*;
import javax.crypto.spec.*;
import java.security.Provider;
import com.sun.crypto.provider.*;

public class Test4512524 {

    private static final String ALGO = "AES";
    private static final String PADDING = "NoPadding";
    private static final int KEYSIZE = 16; // in bytes

    public void execute(String mode) throws Exception {

        String transformation = ALGO+"/"+mode+"/"+PADDING;
        Cipher ci = Cipher.getInstance(transformation, "SunJCE");

        // TEST FIX 4512524
        KeyGenerator kg = KeyGenerator.getInstance(ALGO, "SunJCE");
        kg.init(KEYSIZE*8);
        SecretKey key = kg.generateKey();

        try{
            AlgorithmParameterSpec aps = null;
            ci.init(Cipher.ENCRYPT_MODE, key, aps);
        } catch (NullPointerException ex) {
            throw new Exception("null parameter is not handled correctly!");
        }

        // passed all tests...hooray!
        System.out.println(transformation + ": Passed");
    }

    public static void main (String[] args) throws Exception {
        Security.addProvider(new com.sun.crypto.provider.SunJCE());

        Test4512524 test = new Test4512524();
        test.execute("CBC");
        test.execute("GCM");
    }
}