this post was submitted on 17 Sep 2023
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Programming
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Hmm i guess I just haven't spent enough time trying to parse unminified js.
I still would think though, if the code is simple enough to understand when you unminify the js, equivalent code should be similarly simple to understand if it's wasm passed through IDA.
You lose way more information during compilation than you do during minification. This makes reversing the latter much easier than the former.
Remember that JS is much, much higher level than WASM is. Each language will have their own special behaviours and constructs when compiled to WASM, so reversing an algorithm can look completely differently depending on the source language and environment.
Ya, okay that is understandable.
To be honest I have never tried a wasm reversing challenge. I may need to give it a shot.