Thank you for the reply. I am sorry about mis-forming the get data PDU-
I truely doubt it required that type of response- it did seem a little
rude. I should have written XX CA 00 00 00 where XX being the class and
I am not sure which instruction class to use. I used FF as a bitmask way
of indicated wild carding because all 1's can always be OR'd in.
I am reading a manual that states the following:
"The appliance will query the smart card for a unique ID, which is a
portion of a reply from a “get data” application protocol data unit
(APDU) command. The ID contains unique information such as the smart
card manufacturer, smart card chip manufacturer, chip type, batch
number, etc that identifies a particular card from other cards."
I need to emulate the behavior of the appliance. I am able to verify the
card token during development.
Thanks Again.
On 3/10/2010 11:13 AM, Sébastien Lorquet wrote:
Hi,
As I understand, every smart card has a unique ID
Unfortunately, that single statement is not true.
Well, it's not even true at the chip level (I guess every manufacturer
has its own system) but there is no standard way to get this "unique
number" in the same manner for all cards in the world.
Each card model *may* support an unique id, but it is specific to the
card model, as well as the method to retrieve it.
that is accessible without security.
I need to read this ID from any card within a reader. I have spent
some, but not enough, quality time with the ISO 7816-4 spec and
understand the formation of smart card request and response APDUs
(at least I think I do). I have read that I need to use the get
data command as follows:
FF CA 00 00 00
Nice. You need to spend more time on ISO7816 as the FF class is
invalid, it's not a card command but (maybe) a reader command or
something else.
Moreover if such a magic command existed, someone would have mentioned
it somewhere in google.
However, this fails to provide the correct ID.
Sure. Do you at least know what *is* the correct ID you're expecting? :-)
Any help on this would be greatly appreciated.
First detect the card model in some way, then pray for the card to
provide a mean to identify itself, then issue the appropriate valid
commands to get it.
Regards
Sebastien
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