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Blog Archive for igormedeiros during August 2007

APDU is defined at ISO 7816 and means "Application Protocol Data Units", where two structured string of bytes, a Command APDU (C-APDU) and a Response APDU (R-APDU) controls the communication between the host (like the Desktop computer) and the smart card, where the smart card receives a C-APDU from the host and returns C-APDU. In the C-APDU, the first four bytes are mandatory, they are: CLA -...