Reply To: Problem with readData DesFire EV1 2k 3Des

Forum MIFARE SDK Problem with readData DesFire EV1 2k 3Des Reply To: Problem with readData DesFire EV1 2k 3Des

Re: Problem with readData DesFire EV1 2k 3Des

1. September 2017 at 12:42
Hi Jean-Pierre,

Yes, in encrypted communication you must use the buffer size of the encryption method. This means this is the smallest buffer size and if you need larger buffers, it must be a multiple of the minimum buffer size.

Some crypto libraries fill the buffer for you under the hood. If you use 2K3DES or 3K3DES cipher you have to use 8 byte buffers and for AES128 16 bytes buffer size.

The TapLinx team

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