How important is T=1 support in a reader?
Is it true that if a card uses T=1 it must also be able to communicate
using T=0?
Do you typically see cards that can only provide some functionality
when communicating in T=1 mode but can not provide that same fucntionality
in T=0 mode? For example, let's say that I had a card that did 3DES,
would I be likely to find that such a card would only do 3DES when
in T=1 mode but not in T=0 mode?
The purpose behind these questions is that I have a customer that
wants to use on my me readers which does not support T=1 yet, and
the customer is claiming that their card *must* be used in T=1 mode,
and that it can *not* be used in T=0 mode (and further goes on to
claim that:
I think that features of T=1 are evident. T=0 with its
byte oriented error checking is not a question at this
time. It is well known that the whole world is using
T=1 (except French).
So, aside from the gratuitous attack on the French (didn't most
of Europe finally become friends about 50+ years ago :-)? I need
to understand the accuracy of this statement. Is it really true
that the "whole world" is using T=1 or is it a case that my
customer just doesn't like T=0?
The real solution is for my reader to support T=1 of course, but
I am trying to propose a workaround and I need to get beyond
the irrational and into the technical.
thanks for any insights,
mike
--
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Michael Bender E-Mail: [EMAIL PROTECTED]
Sun Microsystems, Inc. Tel: 650-786-3143
901 San Antonio Road
Palo Alto, CA 94303-4900
Mailstop: MPK29-209
Never give up! Never surrender!
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