恩智浦Desfire EV1与J3D081-JCOP卡

Question

I am a total newbie in cardware and would like to know some advantage of an - "conventional" NXP Desfire EV1 8K to an - NXP J3D081 means P5CD081 JCOP 80K Chip with Desfire EV1 Emulation.

Do I really need such a Java-card for purposes of PKI, Single sign on, OTP and so on or would it be possible to realize with the "simple" EV1 also?

Or: the JCOP-Card may be programmed by Java - but how the Desfire EV1 "without JAVA" is programmed it?

Thanks a lot for all explications what would illuminate my "confusion".

fizz

Answer 1

The things you are talking about normally require asymmetric cryptography, which is not present on a Desfire memory card. So basically you need a smart card with asymmetric co-processor.

Memory cards like the Desfire are not programmed; they are relatively simple cards that can store encrypted/authenticated data and perform symmetric authentication. You cannot write programs to run on them.