Re: [Opensc-devel] Typical smartcard response times

[Ludovic R. <lud...@gm...>]

Le dim. 9 févr. 2020 à 14:32, Pali Rohár <pal...@gm...> a écrit :
>
> On Sunday 09 February 2020 13:53:46 Ludovic Rousseau wrote:
> > Le dim. 9 févr. 2020 à 10:25, Marian Ďurkovič <md...@bt...> a écrit :

> > > Is this expected behaviour? What are typical response times for other smartcards?
> >
> > The speed depends on many factors. One of them is the speed between
> > the card and the reader.
> > Some cards are faster than others.
> > Some readers are faster than others.
> >
> > What is the ATR of your cards?
>
> Hello!
>
> In OpenSC project on github is already an open issue for Slovak eID
> cards: https://github.com/OpenSC/OpenSC/issues/208
>
> There is also posted ATR of a card.

ATR from the github issue is 3B DF 18 00 81 31 FE 58 00 31 B9 64 05 0E
01 00 73 B4 01 D3 00 00 00 22
https://smartcard-atr.apdu.fr/parse?ATR=3BDF18008131FE580031B964050E010073B401D300000022

So a TA1 of 0x18
https://ludovicrousseau.blogspot.com/2016/04/atr-statistics-ta1-global-encodes-fi.html
Fi=372, Di=12, 31 cycles/ETU (129032 bits/s at 4.00 MHz, 161290 bits/s
for fMax=5 MHz)

129032 bits/s s not terribly fast.
The reader you use, Gemalto PC Twin Reader, can do dwMaxDataRate: 344086 bps
https://ccid.apdu.fr/ccid/readers/GemPCTwin.txt

My next point is the card processing speed. Maybe the card OS and
application is slow.

Or maybe OpenSC (and the official driver) is sub-optimal.
But that is a lot of work to work on that.

Bye

--
 Dr. Ludovic Rousseau