CODEWITHSUNDEEP
javacardglobalplatform
Ebrahim Ghasemi
Ebrahim Ghasemi

Reputation: 6116

Is there any way to make our applet to receive all SELECT APDU commands?

As far as you know, Card Manager (~ Security Domain) is the entity that is responsible for handling SELECT APDU commands. I need an applet to receive all the APDU commands (including SELECT APDU Commands). In the other words I need my applet to be SELECTED by default and always selected.

I know that I can make my applet, the "default selected" applet, but is there any way to make it "always selected" to make it receive all the APDU commands?

I guess the only way to do that is to take advantage of Delegated Management or making my applet a Security Domain. Am I right?

Upvotes: 2

Views: 520

Answers (1)

Paul Bastian
Paul Bastian

Reputation: 2647

it is probably not possible. you will never be able to overrule the select command as this behaviour is a core part of the JCRE spec and there will always be the card manager selectable by its AID. Some card manufacturers have possibilities to disable the card manager but this is proprietary.

edit: the select command not possible to overrule is:

  • class 0x00 (or any logical channel)
  • ins 0xA4
  • p1 0x04
  • p2 variable
  • lc+data referencing an AID or partial AID select if allowed by the chip manufacturer

Upvotes: 4

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