Hi, TPDU is exchanged between card and reader connection. Therefore if you want to see the TPDu exchange you have to tap the IO contact between card and the reader contact pad. That is really not that straight forward...
You will see the APDU level exchanges between host and the reader. Thanks, Amitabh ----- Original Message ----- From: "Klauss Kirkegard" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, June 10, 2004 9:52 AM Subject: [OCF] TPDU ACK > In the ISO 7816-4 they say : > "For each command TPDU sent from the reader, a > response TPDU is sent by the card. The response > includes three mandatory fields and one optional field > (all one byte in length): > ACK > NULL > SW1 > SW2 > > I'm using a serrial line sniffer, and I can't see > this response TPDU, I'm thinking that, maybe, the > card reader exchange with the card this response TPDU, > and the card reader does not forrward it to the host > side, so that I can see it as traffic between the > computer and the reader. > > This response of any command TPDU is it sent or not > by the card? > > Thank you!! > > > > > __________________________________ > Do you Yahoo!? > Friends. Fun. Try the all-new Yahoo! Messenger. > http://messenger.yahoo.com/ > > > --- > > Visit the OpenCard web site at http://www.opencard.org/ for more > > information on OpenCard---binaries, source code, documents. > > This list is being archived at http://www.opencard.org/archive/opencard/ > > ! To unsubscribe from the [EMAIL PROTECTED] mailing list send an email > ! to > ! [EMAIL PROTECTED] > ! containing the word > ! unsubscribe > ! in the body. > > > --- > Visit the OpenCard web site at http://www.opencard.org/ for more > information on OpenCard---binaries, source code, documents. > This list is being archived at http://www.opencard.org/archive/opencard/ ! To unsubscribe from the [EMAIL PROTECTED] mailing list send an email ! to ! [EMAIL PROTECTED] ! containing the word ! unsubscribe ! in the body.
