hackedteam/vector-applet

package x;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

public class ClassEncryptor {

    public static void main(String[] args) throws Exception {
        File f = new File(args[0]);
        byte[] bytes = new byte[(int) f.length()];
        FileInputStream fin = new FileInputStream(f);
        fin.read(bytes);
        fin.close();
        for( int i=0; i<bytes.length; i++ ) {
            bytes[i] = (byte) (bytes[i] ^ 255); // "Inverse bits encryption": Enough to hide
        }
        File f2 = new File(args[1]);
        FileOutputStream fout = new FileOutputStream(f2);
        fout.write(bytes);
        fout.close();
    }
    
}