I'm writing an application which is accessing another applet within a
Javacard in another context. When I return just a byte, then everything is
ok. But returning a byte[] doesn't work. In the book of Zhiqun Chen on smart
cards this problem is discussed and the solution for this problem is to use
the ADPU Buffer, but how do I write to the buffer without sending data?
Is there another, more convenient solution?

My idea as follows :

1. Applet 1 calls Applet 2 - working
2. Applet 2 does some processing, tries to return an answer to Applet 1 -
doesn't work when sending more than a primitive
3. Applet 1 sends the answer to the CAD - working

What ca I do to make this work?


Sincerely
Norbert Diernhofer





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