Graham Hartridge

MusiKey — Musical Entropy Authentication MusiKey replaces passwords with music. Instead of memorizing strings of characters, you authenticate with a unique musical composition that doubles as a cryptographic key. The problem: Passwords are weak, reused, and forgettable. Hardware tokens are expensive and losable. Biometrics can't be changed if compromised. The solution: MusiKey generates a...

Update on Feb 27 , 2026: MusiKey turns music into cryptographic keys. Generate a unique composition, and it becomes your authentication credential — encrypted with cascaded KDF (PBKDF2 + Argon2id) and double AES-256-GCM. Features ECDSA P-256 challenge-response authentication for external services, multi-factor auth (musical challenge-response + TOTP), visual fingerprint verification,...

I built MusiKey because I was tired of the same password paradigm we've been stuck with for decades. What if authentication wasn't just secure, but actually beautiful? MusiKey generates a unique encrypted musical composition for every user. Your identity isn't a string of characters — it's a song. Enrollment creates a scale-constrained melody using cryptographic randomness, encrypts it through...