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A modified CAP file can be installed w/o any problem?

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sakkiotto
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A modified CAP file can be installed w/o any problem?

Post by sakkiotto » Thu Aug 24, 2017 10:46 pm

Recently, I am working on java card security study. The first test I would like to do is trying to load a modified CAP file into java card.

I modify one byte of the CAP file at will via WinHex. What make me strange is that my modified CAP file can still be uploaded and installed with its standard method. Why? It's not correct in my view. Could anyone clarify it for me?
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mabel
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Re: A modified CAP file can be installed w/o any problem?

Post by mabel » Fri Aug 25, 2017 2:27 am

What CAP component did you modify?
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sakkiotto
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Re: A modified CAP file can be installed w/o any problem?

Post by sakkiotto » Sun Aug 27, 2017 10:52 pm

mabel wrote:What CAP component did you modify?


I just change one byte at will. And I am not clear that which component I modified? How can I confirm that?
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