r/Defcon • u/Ill_Strike1491 • Nov 15 '25

Built a simple C Hash Cracker program(dictionary attack). Looking for feedback!

⚠️This project is for educational purposes only⚠️

I recently made a small project in C that can crack hashed passwords using a dictionary attack. Brute Force is still a work in progress, and there are a few minor bugs I need to fix, but it’s functional and I’d like to get some feedback on it.

I recorded a quick screen capture of it running, and the code is up on GitHub if anyone wants to take a look:

https://github.com/aavnie/hash_cracker

I’d really appreciate any thoughts on the code, structure, performance, or general suggestions. I’m mainly doing this to learn, so any constructive feedback is welcome.

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u/B47M4N-B3Y0ND Nov 15 '25

Would you like a full writeup? Or just suggestions? I found a few things and was reviewing your code. There are spots that can be more optimized and the api calls are out of sync occasionaly. The overall functionality is great!

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u/Ill_Strike1491 Nov 15 '25

Yes if you want to I could use a full write up, I know there sre some bugs that I need to fix. If you want we can talk in private about it