This is my readme: Zero-Knowledge Authentication

Using a ZK-Snark, this password verification handles authentication without storing your password.

Methods (Accounts will be handled in a generated directory called zkpasswordsaccounts):

• setPassword(newEmail, newPassword): Creates a directory to handle authentication for a new user.
• checkPassword(emailAttempt, passwordAttempt): Checks if a given username and password match a user.
• changePassword(email, password): Changes the credentials for an existing user.

More on ZK-Snarks: https://z.cash/learn/what-are-zk-snarks/

More on Plonk: https://eprint.iacr.org/2019/953.pdf

Example:

const ZKPasswords = require('zkpasswords');
const zk = new ZKPasswords();
const response = await zk.setPassword(newEmail, newPassword);