#Bcrypt

🛡️ Fixing ValueError: password cannot be longer than 72 bytes in Python 3.12 / 3.13 (passlib + bcrypt) When deploying FastAPI authentication routes using passlib[bcrypt] on Python 3.12 or Python 3.13, newer versions of bcrypt (>= 4.1.0) raise:…

The login service was slow, so you added a cache. When a user signs in successfully, remember it for...

Key topics, system design questions, and practical exercises for security engineer interviews.

I never profiled our authentication middleware. Why would I? It's a key check. The request comes in,...

I was using one of those popular online bcrypt tools. Pasted a hash to look it up. It said "not...

TL;DR AI editors frequently output MD5 or SHA-1 for password hashing -- both broken for...

Hey everyone, I’m currently writing my Bachelor’s thesis, which is actually a continuation of a project started by a previous student. Their work covered several other cryptographic primitives and the whole thing was built in Laravel, so I’m stuck…

I was about to release Autentico 2.0. The feature work was done, tests were passing, docs were...