test/com/sun/crypto/provider/Cipher/AES/Test4626070.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * 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).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 4626070
 * @summary Verify that AES cipher can wrap and unwrap keys
 * @author Valerie Peng
 */
import java.security.*;
import javax.crypto.*;
import java.util.*;


public class Test4626070 {
    private static final String ALGO = "AES";
    private static final String MODE = "CBC";
    private static final String PADDING = "PKCS5Padding";
    private static final int KEYSIZE = 16; // in bytes

    public boolean execute() throws Exception {

        Cipher ci = Cipher.getInstance(ALGO+"/"+MODE+"/"+PADDING, "SunJCE");
        KeyGenerator kg = KeyGenerator.getInstance(ALGO, "SunJCE");
        kg.init(KEYSIZE*8);
        SecretKey key = kg.generateKey();

        AlgorithmParameters params = ci.getParameters();

        // TEST FIX 4626070
        ci.init(Cipher.WRAP_MODE, key, params);
        byte[] wrappedKeyEncoding = ci.wrap(key);
        params = ci.getParameters();
        ci.init(Cipher.UNWRAP_MODE, key, params);
        Key recoveredKey = ci.unwrap(wrappedKeyEncoding, "AES",
                                     Cipher.SECRET_KEY);
        if (!key.equals(recoveredKey)) {
            throw new Exception(
                "key after wrap/unwrap is different from the original!");
        }
        // passed all tests...hooray!
        return true;
    }

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

        Test4626070 test = new Test4626070();
        String testName = test.getClass().getName() + "[" + ALGO +
            "/" + MODE + "/" + PADDING + "]";
        if (test.execute()) {
            System.out.println(testName + ": Passed!");
        }
    }
}