The toolkit kept growing faster than I expected. After the first batch of tools, I started getting into stuff I hadn’t touched before — cryptography, QR codes, and digging into Windows internals.
First I added the QR code generator. Honestly easier than I thought — create a QRCode object, feed it data, save the image. Done in a few lines.
Then I moved into the security section, which ended up being the most interesting part of this devlog. The password strength checker evaluates five criteria and returns a rating. The vulnerability scanner reads a .py file and flags dangerous patterns like eval(), exec(), and pickle.loads() — each one is a separate if so it catches everything, not just the first issue it finds.
The encryption tool was the trickiest one. I used Python’s cryptography library with AES via Fernet. The user’s key gets hashed with SHA-256 to get a proper 32-byte key, then Fernet handles the rest. The annoying part was the output — Python was printing b’…’ around the encrypted string which broke the decryption input. Fixed it with .decode().
The firewall assistant uses netsh advfirewall to check if the firewall is active on all three Windows profiles and whether Remote Desktop port 3389 is open. Something I’ll actually use.
13 tools now. Security section is done.