A cryptographic key pair used for authentication, enabling passwordless logins.
A passkey is a form of cryptographic authentication that replaces traditional passwords. It consists of a public-private key pair generated on a user's device. The public key is stored by the service provider, while the private key remains securely on the user's device, often protected by biometrics (like fingerprint or facial recognition) or a device PIN. This method offers enhanced security against phishing and credential stuffing attacks by eliminating the need to transmit or store sensitive password data.