Reply To: Switching MiFare Plus to S3

[Guilherme Bernal]

Hello,

I have the same exact problem reported here.

        byte[] key = new byte[16]{0x4b, 0x2c, 0xf0, 0xbb, 0x69, 0x5e, 0xb4, 0xdd, 0x80, 0x42, 0xd4, 0x24, 0x64, 0x71, 0x5e, 0x5c};

        KeyData keyData = new KeyData();

        keyData.setKey(new SecretKeySpec(key, "AES"));



        // later on, when a card detection intent is received:

        IPlusEV1SL1 card = PlusSL1Factory.getInstance().getPlusEV1SL1(mifare.getCustomModules());

        card.switchToSL3(keyData);

This fails with

com.nxp.nfclib.exceptions.SecurityException: error:1e06b06a:Cipher functions:EVP_DecryptFinal_ex:DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH

But my key clearly has exactly 16 bytes. I'm using TapLinx 1.0. What is wrong here?

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