Authentication Reimagined
It's about time to
change your password.
Fuzzypass uses cued recall to help you remember 100 bits of entropy. A truly secure passphrase that's actually memorable.
No more Tr0ub4dor&3 vs Tr0ubad0r&3. Remember associations, not specifics.
Free forever with Locke ID. Patent pending.
The Problem
Chances are your password is weak
Not Enough Entropy
99% of passwords people choose will never provide enough entropy to securely encrypt data. Most can be cracked in hours.
Impossible to Remember
Humans are famously bad at remembering exact information. Which letter did you capitalize? Where was the exclamation mark?
Passkeys Need Devices
Passkeys are great, but they require possession of a device. A strong password lives only in your brain—no hardware needed.
The Solution
Fuzzypass leverages cued recall
Human memory is unintuitive. It's much easier for us to remember fuzzy associations than exact pieces of information.
With Fuzzypass, you pick 8-12 words. Each word is associated with a numbered "lock"—a number from 1-10, each with a distinct color and symbol. When you login, you only need to remember 3 words at a time.
Security
~100 bits of entropy
you can actually remember
We use the cryptographic concept of perplexity to measure the predictability of your word sequence. Fuzzypass guides you toward phrases that are grammatically correct but semantically strange—maximizing entropy while remaining memorable.
10
words recommended
3
words to login
720
permutations (+9 bits)
Security Properties
Defense in depth
Device-Bound 2FA
Known devices use a local 256-bit key for automatic 2FA. New devices require your full Fuzzypass.
Rotating Permutations
Different 3-word combinations each attempt. Attackers must track all 720 permutations.
Shoulder Surf Resistant
Observers can't determine which words map to which numbers by watching a single login.
Keylogger Resistant
Capturing 3 words doesn't reveal your full Fuzzypass or which words map to which locks.
Perplexity Scoring
We measure your phrase's predictability and guide you away from common patterns.
Full Entropy Backup
Your backup key is encrypted with all 10 words—~100 bits for strong single-factor recovery.