A Zero-Knowledge Proof is a method by which one party (the prover) can prove to another party (the verifier) that a statement is true without having to provide that statement to the verifier.This concept extends to Zero-Knowledge Encryption, in which a user authenticates their identity with a server or stores encrypted data on it without having to provide their password or any encryption keys. Therefore, only the user themselves can access their data.Locker cannot know or retrieve the password or any secret information of the user. All data is secured using end-to-end encryption through the user’s personal email and Master Password. Locker does not store and cannot access the user’s Master Password or encryption keys.