Hassemer's Keyfile Builder

This tool allows you to build a 1,000,000-byte keyfile from a series of inputs, including a PIN, a password and the birth dates of your family members, in a deterministic manner

Building a keyfile can take a long time, up to 30 minutes or more, depending on your device. The whole process is executed locally on your machine. Don't close the tab until the key is finished! You can safely change tabs and do other things on your device while the keyfile is being built.

Your PIN (digits only, min. length 4):

Your password (min. length 20; must include a lowercase letter, an uppercase letter, a digit and a symbol, and must not contain the PIN):

Your father's birth date (format: DD/MM/YYYY):

Your mother's birth date (format: DD/MM/YYYY):

Your own birth date (format: DD/MM/YYYY):

This is still a preliminary release, dated 19/10/2025. The final, definitive version will be released soon.

Disclaimer: This tool is provided "as-is", absolutely without guarantees. Use it at your own risk. Please be careful 🙏🏻