Hello!

I have reader compliant to ISO 14443-3 and smartcards with support of
anticollision function.
The ISO 14443-3 specifies procedures to manage selection of the card for
further communication?
Can I via PCSC-Lite implement the following functionality:
1. Put on reader two smartcards.
2. Select one of them and read it
3. Select another and read it
?

Sincerelly, Alexei.

-----Original Message-----
From: s.ferey [mailto:[email protected]] 
Sent: Wednesday, January 26, 2011 5:23 PM
To: MUSCLE
Cc: Alexei Soloview
Subject: Re: [Muscle] Access to multiple contactless cards using PCSC-Lite

Hello,

no you can't. at least with an ISO 14443 [1] compliant reader.

when locted in the field of the antenna of one reader, all cards are 
powered on (received power thanks to the RF field) and all of them 
exchange basic information (an UID or PUPI - unique identifier) but only 
one can exchange APDU with the reader.

if your purpose is to obtain an unique identifier from cards, the "card 
request" (REQA / REQB) and its response is enough; but if you need APDU 
exchanges, you will need specific protocol / communication stacks that 
are out of the scope of ISO 14443 and thus not available with regular 
readers (an industrial reader may offer that option with proprietary API).

[1] ISO 14443-3 defines how the cards in the field are enumerated and 
how one card is selected for further exchanges.

Sylvain.


Le 26/01/2011 14:48, Alexei Soloview a écrit :
> Hello!
>
> Can I work  with two contactless smartcards that are located in the
> field of one reader at the same time?
>
> Where can I find sample?
>
> Sincerelly, Alexei.
>


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