serialization not works!

[membrown]

hello

I use this code for generating and then serializing the AES white box instance

System.out.println("generate"); Generator gEnc = new Generator(); Generator gDec = new Generator(); Random rand = new Random();

    // External encoding is needed, at least some, generate identities
    ExternalBijections extc = new ExternalBijections();
    gEnc.generateExtEncoding(extc, 0);

    // at first generate pure table AES implementation
    gEnc.setUseIO04x04Identity(false);
    gEnc.setUseIO08x08Identity(false);
    gEnc.setUseMB08x08Identity(false);
    gEnc.setUseMB32x32Identity(false);

    gDec.setUseIO04x04Identity(false);
    gDec.setUseIO08x08Identity(false);
    gDec.setUseMB08x08Identity(false);
    gDec.setUseMB32x32Identity(false);

    // Generate AES for encryption
    gEnc.generate(true, AEShelper.testVect128_key, 16, extc);
    AES AESenc = gEnc.getAESi();

    // Generate AES for decryption
    gDec.generate(false, AEShelper.testVect128_key, 16, extc);
    AES AESdec = gDec.getAESi();

    //********************************
    try {

        FileOutputStream fileOut
                = new FileOutputStream("AESenc.ser");
        ObjectOutputStream out = new ObjectOutputStream(fileOut);
        out.writeObject(AESenc);
        out.close();
        fileOut.close();
        System.out.printf("Serialized data is saved in AESenc.ser");
    } catch (IOException i) {
        i.printStackTrace();
    }

    try {
        FileOutputStream fileOut
                = new FileOutputStream("AESdec.ser");
        ObjectOutputStream out = new ObjectOutputStream(fileOut);
        out.writeObject(AESdec);
        out.close();
        fileOut.close();
        System.out.printf("Serialized data is saved in AESdec.ser");
    } catch (IOException i) {
        i.printStackTrace();
    }

but when read file and de-serialize objects encrypt/decrypt not work properly this is code

    Generator gEnc = new Generator();
    Generator gDec = new Generator();
    Random rand = new Random();

    // External encoding is needed, at least some, generate identities
    ExternalBijections extc = new ExternalBijections();
    gEnc.generateExtEncoding(extc, 0);

    // at first generate pure table AES implementation
    gEnc.setUseIO04x04Identity(false);
    gEnc.setUseIO08x08Identity(false);
    gEnc.setUseMB08x08Identity(false);
    gEnc.setUseMB32x32Identity(false);

    gDec.setUseIO04x04Identity(false);
    gDec.setUseIO08x08Identity(false);
    gDec.setUseMB08x08Identity(false);
    gDec.setUseMB32x32Identity(false);

    AES AESenc ;
    AES AESdec ;

    try {
        FileInputStream fileIn = new FileInputStream("AESenc.ser");
        ObjectInputStream in = new ObjectInputStream(fileIn);
        AESenc = (AES) in.readObject();
        in.close();
        fileIn.close();
    } catch (IOException i) {
        i.printStackTrace();
        return;
    } catch (ClassNotFoundException c) {
        System.out.println("AESenc.ser not found");
        c.printStackTrace();
        return;
    }

    try {
        FileInputStream fileIn = new FileInputStream("AESdec.ser");
        ObjectInputStream in = new ObjectInputStream(fileIn);
        AESdec = (AES) in.readObject();
        in.close();
        fileIn.close();
    } catch (IOException i) {
        i.printStackTrace();
        return;
    } catch (ClassNotFoundException c) {
        System.out.println("AESenc.ser not found");
        c.printStackTrace();
        return;
    }

    //################################
    gEnc.setAESi(AESenc);
    gDec.setAESi(AESdec);

   .
   .
   .
  // Encrypt
        state.transpose();
        gEnc.applyExternalEnc(state, extc, true);
        AESenc.crypt(state);
        gEnc.applyExternalEnc(state, extc, false);

        System.out.println("Enc(plaintext_test): \n" + state);
        //assertEquals("Cipher output mismatch", true, state.equals(cipher));

        // Decrypt
        state.transpose();
        System.out.println("T(Enc(plaintext_test)): \n" + state);
        gDec.applyExternalEnc(state, extc, true);
        AESdec.crypt(state);
        gDec.applyExternalEnc(state, extc, false);
        System.out.println("Dec(T(Enc(plaintext_test))): \n" + state.toString());
        System.out.println(new String(state.getStateCopy()));

but not work please help me.

[ph4r05]

Apparently you posted this to incorrect repository. This is repository for C++ implementation, your code refers to java implementation.