one-time pad tool

https://aged-wiki.win/index.php/Why_an_Online_One-Time_Pad_Still_Matters_for_Secure_Messaging

This one-time pad tool generates random keys and lets you encrypt or decrypt messages with perfect secrecy, as long as you keep the key secret and never reuse it. It's a straightforward implementation of Claude Shannon's proven unbreakable cipher, useful for understanding cryptographic principles or secure offline communication.