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How to create files in java card

JavaCard Applet Development Related Questions and Answers.
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Christy16
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How to create files in java card

Post by Christy16 » Wed Dec 28, 2016 11:29 pm

I want to create EFs with some data which is defined by myself and store them in the java card. Then I would like to use an applet to select and read these data. Is there any way to do this? How can I implement? Thanks a lot
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pitbar
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Re: How to create files in java card

Post by pitbar » Thu Dec 29, 2016 2:26 am

You have to implement a proprietary version of CREATE FILE and the ISO versions of READ BINARY and UPDATE BINARY by yourself according to your needs.

FYI: ISO applet viewtopic.php?f=17&t=31 is really a good example for you to learn more on this part.
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Christy16
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Re: How to create files in java card

Post by Christy16 » Thu Dec 29, 2016 5:20 am

Many thanks for your help. I will try to study ISO applet first.
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