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ISO7816-2 defines the physical interface to the card (contact positions and assignments, contact size, and so on).When requesting authorization, the ird goes to a location on the card and receives instructions to a jump to another location where the authorization code resides, then jumps back. |
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The first thing i should mention is it was boxed....An integrated circuit inside the IRD that sifts through the entire available DSS DataStream and outputs only that data that is relevant to its IRD. |