Hi Harley, > I know this is an offshoot from our posting but anyway I think your help is greatly appreciated on this one. > I have tried programming using memory cards only, that is the card is used to store information such as personal information and other offline data which I can use to sync with the main applcation system. What memory card are you using? I don't have experience of them but it would help to know. > Its been 3 weeks and I still have a hard time coping up with the creation, > testing and implementation of applet in smart card. Like, where the heck would I > create that .opt file? Creating applet is relatively easy, as > per the instructions besides its just java proramming. But to implement the > applet is another because I dunno how to trigger that applet, assuming that it >is already stored. Plus, the guides do not give a clue whether I > can still use the java card as my memory card, say to create EF and DF where I >can store some information for future processing by the same applet found in the >card. Plus how will the user got to see that it is > working , i mean UI which is usually a third program created outside the card >but is capable of triggering the card's applet and recieve information for >viewing. It sounds like you have a Javacard that can also act as a memory card – is it a Gemplus card? Anyway, it sounds like you need some javacard priming. You communicate with card applets using APDUs. These are data packets send to the card. First you must "select" your application by AID, that is how it is "triggered". Then you can send any APDUs you like to your applet, and provided you have coded it to handle the APDUs properly and respond with data, it will all work. The UI for the user – typically a Java application that uses OCF to send APDUs to your applet. Of course, you must first install your applet which is a card-type dependent task. However, our forthcoming DynamicCardServiceFactory project will make this the same for all cards it supports. It sounds like you are using the ISO filesystem to store data on the card. Depending on what you are storing, it may not be necessary at all once you have your javacard applet. However, some card manufacturers may provide on-card APIs for communicating with the ISO filesystem on the card. > If you can lead me to a better link where I can extract this information >is greatly appreciated. I feel that a lot of time has been wasted going over and >over again but it seems I just can;t get this thing > working. www.opencard.org for the "host" side (sending APDUs) Book – "JavaCard Technology for Smart Cards" by Zhiqun Chen, O'Reilly. Cheers --- > Visit the OpenCard web site at http://www.opencard.org/ for more > information on OpenCard---binaries, source code, documents. > This list is being archived at http://www.opencard.org/archive/opencard/ ! To unsubscribe from the [EMAIL PROTECTED] mailing list send an email ! to ! [EMAIL PROTECTED] ! containing the word ! unsubscribe ! in the body.
