scrypt: scrypt (scrypt encryption utility) scrypt: scrypt: The scrypt key derivation function was originally developed for use in scrypt: the Tarsnap online backup system and is designed to be far more secure scrypt: against hardware brute-force attacks than alternative functions such scrypt: as PBKDF2 or bcrypt. A simple password-based encryption utility and an scrypt: optional library are available as a demonstration of the scrypt key scrypt: derivation function. scrypt: scrypt: Homepage: https://www.tarsnap.com/scrypt.html scrypt: Development: https://github.com/Tarsnap/scrypt