Passkeys

Part of speech: noun

Definitions

1. A type of authentication method that replaces traditional passwords for securely accessing accounts or devices
2. A digital key system designed to enhance security by using unique codes to verify identity
3. A technological measure offering a more secure alternative to passwords by employing cryptographic methods for user verification

Etymology: "Passkeys" is the plural of "passkey", and the word is a plain compound of "pass" and "key." Its older sense was the literal one: a key that gives passage through a door or gate, such as a master key or a pass-key used by hotel staff and janitors. The modern sense is a different thing entirely. A passkey is a digital credential stored on a device, created with public-key cryptography, that lets a user prove their identity to a website or app without typing a password. The device keeps a private key that never leaves it, while the service holds only the matching public key, so there is no shared secret for attackers to steal from a server breach. The idea is the same as the old one in one respect: a passkey, like the physical key, opens access once it is presented, and it is the holder's possession rather than something they must remember. The shift was from metal to mathematics, and from a thing carried in a pocket to a thing kept on a phone or laptop.

Synonyms: keys, passwords, access codes, entry keys, security keys

Antonyms: locks, barriers, blockades, denials