How can I read (and write) Mifare DesFire Cards with Android

Question

I'm trying to read and write with an android app an mifare desfire card (classic works already) but don't know how it works :). I know it has something to do with transceive(byte[]) which is responsible for communicating through raw bytes but how does it work in detail? Can you give me some Code-snippets?

Thanks a lot and best regards.

Answer 1

恩智浦推出了一个SDK，以处理与Mifare DESFire EV1卡的通信： https : //www.mifare.net/en/products/tools/taplinx/

Answer 2

It is rather complicated than that, because all communication is ciphered and could also be with CMAC. I've found a high level SDK than does all the job so you don't have to deal with transceive and all that, private message me if you are interested..