Store records in Internal secure card

[super_beda]

Hi all,
It is possible to create record files in theinternal secure card from a JavaCard Applet?
Or It is better to store secret data in the internal MiFare?
Which is the difference?

Someone can help me?It is very urgent!!
Thanx in advance

[tdelazzari]

You can store records on Elementary File, Dedicated File, ... in the internal Secure Card.
See chapter 5 here: http://java.sun.com/products/javacar...persGuide.html

For backward compatibility my advice is to store data into the MIFARE container: http://en.wikipedia.org/wiki/Backward_compatibility

Both solutions are highly secure.

[super_beda]

Are you sure internal javaCard does support File System (javacardx.framework)?
In the forum FAQs page it seems that 6131 secure element is based on Javacard v 2.2.1 and its documentation doesn't include this package..
Do you know something about that?
Thank you