javascript-obfuscator VS noble-secp256k1

I don't need/use IDA, Nemlei just used https://obfuscator.io/, which just obfuscates the crap out of the code using various known methods (which I won't go into detail, it's public knowledge) and an un-obfuscation was cooked up by others. The one fucked-up thing the website does is randomizing function names, it just changes every variable/function name. We can't "un-obfuscate" those, so it's up to our brains to figure out what the code does, and change the names back.

I was considering using a obfuscation library (https://github.com/javascript-obfuscator/javascript-obfuscator) and noticed in the usage example that backticks are used and the javascript is enclosed within. The issue is that my javascript already has backticks from using template literals so my code then errors out.

Obfuscation: JavaScript Obfuscator

What I ended up doing is having two build steps, one for renderer and other for the main process, in the main process build I use https://github.com/javascript-obfuscator/javascript-obfuscator. Works pretty fine.

It's to purposefully makes your code harder to read so it prevents people from stealing your work. Here's a tool that does it: https://obfuscator.io/

I just tested it on a little snippet of my code obfuscated with https://obfuscator.io/ and it worked seemingly perfectly.

My original code:

  function resizeImage(img) {

https://obfuscator.io/ produces a similar result, perhaps that's all they used.

I noticed in July of 2022 that Go did exactly the vulnerable example and reported it to the security team.

https://github.com/golang/go/issues/53849

It was fixed as of Go 1.21 https://go.dev/doc/go1.21

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The article cites JavaScript, which is not constant time. There's no sure way to do constant time operations in JavaScript and thus no secure way to do crypto directly in Javascript. Browsers like Firefox depend on low level calls which should be implemented in languages that are constant time capable.

JavaScript needs something like constant time WASM in order to do crypto securely, but seeing the only constant time WASM project on GitHub has only 16 stars and the last commit was 2 years ago, it doesn't appear to have much interest. https://github.com/WebAssembly/constant-time

However, for JavaScript, I recommend Paul's library Noble which is "hardened to be algorithmically constant time". It is by far the best library available for JavaScript. https://github.com/paulmillr/noble-secp256k1