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Editorial Team
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Asked: 2026-06-17T01:48:41+00:00

I have written a program the performs the standard AES S-Box encryption. my problem

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I have written a program the performs the standard AES S-Box encryption. my problem is that when I encrypt the message it is supposed to write the text to a JTextArea, but it just shows a bunch of little square boxes and when I try to save it to a text document it just makes a bunch of question marks in the text file. how can I make it display the encrypted text? or can I even have it automatically write it to a text document without it creating a bunch of question marks?

I think that I have to use utf-8 text encoding but I have no idea how to do that.

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1 Answer

  1. Editorial Team

    Your text is encrypted as binary data. While encrypted it is not in any character set and cannot be rendered as text. If you want a way to view it, you could Base64 encode the encrypted data.

    See: http://en.wikipedia.org/wiki/Base64

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