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   byte[] key = secretKey.getEncoded();
   System.out.println("ok");
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   e.printStackTrace();
  }
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   java.security.Security
   org.bouncycastle.jce.provider.BouncyCastleProvider
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import java.awt.*;
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import javax.swing.*;
import java.io.*;
import java.security.*;
import javax.crypto.*;
import javax.crypto.spec.*;
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