Can I perform concurrent actions on an ISO 7816 card?

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I know that ISO 7816 compliant cards, like modern EMV Chip and PIN cards, are typically used in a command response scenario, the reader sends a command APDU to the card, and the latter sends a response. However, can the card perform concurrent activities, such as perform any dummy action while it waits for a command from the reader, or does it have to wait passively?

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concurrencysmartcardapduemviso-7816-4
My answer to the security forum question still holds. – guidot
The terminal can do parallel processing in some cases, but not the card. – Adarsh Nanu
Care to elaborate? – OrangeJusticeV

2 Answers

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What the main reason behind that? I think u cannot do parallel action on the card because each command u r sending affect the current card status.

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The card does the action only based on the APDU command request. For a request, a response is expected, and in most cases in a sequence too. To say, you cannot do a GET PO before SELECT, you cannot request a GEN AC before GET PO.

But I am curious what the 'concurrent activities' possible, could you think aloud?