OCF or Javacard.Framework

[Usiger]

My PC application is written in Delphi language and I installed my applet into card which delphi app send data to this applet via APDU. Now my question is which one could be better to use in my applet, OCF or Javacard.Framework? I am a little confused with this.

[chico0609]

OCF is an off-card API for communicating with cards and readers with Java.

The card you have should have the org.globalplatform package and won't have OCF. If you want your applet to be portable across different cards, you should probably stick with javacard.framework.

[Usiger]

OCF is an off-card API for communicating with cards and readers with Java.

The card you have should have the org.globalplatform package and won't have OCF. If you want your applet to be portable across different cards, you should probably stick with javacard.framework.

So you suggest using javacard.framework.

I still have one more question. Do you know about filesystem in OCF? If it support Filesystems, can I load a text file into my applet?
I mean create a text file in my pc and send it to ocf in order to save it on card.

[chico0609]

Any reference to file systems in OCF would be to allow the client application to communicate with a file system card. You would still have to have a card that supports the command set for a file system card.