CODEWITHSUNDEEP
flutter
Jacky
Jacky

Reputation: 21

How to prevent modified apps from running in flutter?

In testing, they are able to do these things.

And installed and the system can still work

From what happened I got the following advice as follows: The Application should check for binary and package integrity before being allowed to be executed.

In my opinion Can I check the md5sum runtime? and is there any way to prevent the tampered app to be running? Please tell me which way I can do it. Thanks in advance.

Upvotes: 2

Views: 576

Answers (1)

nvoigt
nvoigt

Reputation: 77304

You cannot.

"The client is in the hands of the enemy".

If you want something tamper-proof, move that logic to the server and make sure your client can authenticate properly.

From what happened I got the following advice as follows: The Application should check for binary and package integrity before being allowed to be executed.

That is a fools errand. Anybody who can tamper with your package can obviously also tamper with your code to check your own integrity.

You need a system that your user cannot tamper with to check integrity of packages. And on the user's own device, that simply does not exist. They are the owner of the device. They can manipulate it in any way they see fit.

Maybe you can elaborate on "what happened" and who gave you this advice. Normally, the person giving such advice should be the first to ask for clarification.

Upvotes: 2

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