Can I see the text of a compiled *.m file?

Question

Mark Golberg 2021-12-20

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https://ww2.mathworks.cn/matlabcentral/answers/1614735-can-i-see-the-text-of-a-compiled-m-file

评论： Mark Golberg 2021-12-23

采纳的回答： Walter Roberson

Hello,

I've discovered that if I have a compiled app (via Matlab deploytool), I can see all it's *.m files in

AppData / Local / Temp / user-name / mcrCache9.3 /

Q1: with respect to secuity/privacy, it's a bit strange that if I send my Compiled GUI to a customer, theoretically he can see, at least the names of all my source *.m file, isn't it?

Q2: I can see the *.m files, but they actually are binary. Is there anyway I can "convert" them back to text?

THANKS!

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Answer 1

Walter Roberson 2021-12-20

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https://ww2.mathworks.cn/matlabcentral/answers/1614735-can-i-see-the-text-of-a-compiled-m-file#answer_858975

https://www.mathworks.com/help/compiler/release-notes.html

Q1: As of R2021b, you can use the mcc option -s to hide the file names from users.

Q2: Yes, it is known that some people know how to decrypt the archives and then convert the data structures back to text. However this is not supported by Mathworks, and I have heard that Mathworks will not do this as a service.

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Walter Roberson 2021-12-23

They have not logged on here for 6 months, and I do not have any email address for them.

Mark Golberg 2021-12-23

I see. Ok, thanks.

If by any change you'll see them again, I'd be mostly grateful if you could direct me to them.

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Answer 2

Yongjian Feng 2021-12-20

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https://ww2.mathworks.cn/matlabcentral/answers/1614735-can-i-see-the-text-of-a-compiled-m-file#answer_858935

The folder you mentioned in general is used for caching data locally. Most likely during compilation. This might not happen in the user's machine. Did you try to install your app in another machine and check that folder?