test/jdk/javax/crypto/SealedObject/TestSealedObjectNull.java

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import java.io.IOException;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NullCipher;
import javax.crypto.SealedObject;

/*
 * @test
 * @bug 8048624
 * @summary This test instantiate a NullCipher, seal and unseal a String
 *  object using the SealedObject with the initialized NullCipher,
 *  and then compare the String content.
 */
public class TestSealedObjectNull {

    private static final String SEAL_STR = "Any String!@#$%^";

    public static void main(String[] args) throws IOException,
            IllegalBlockSizeException, ClassNotFoundException,
            BadPaddingException {
        Cipher nullCipher = new NullCipher();

        // Seal
        SealedObject so = new SealedObject(SEAL_STR, nullCipher);

        // Unseal and compare
        if (!(SEAL_STR.equals(so.getObject(nullCipher)))) {
            throw new RuntimeException("Unseal and compare failed.");
        }

        System.out.println("Test passed.");
    }
}