The Core of Passkey Technology

Passkeys, a breakthrough in the realm of digital security, eliminate the vulnerabilities of password-based systems. Utilizing cryptographic key pairs, passkeys are designed to safeguard user identities without relying on shared secrets. The system operates on a challenge-response mechanism: a private key stored securely on the user’s device interacts with a public key on the service provider’s server. This interaction ensures that sensitive credentials are never exposed, making passkeys inherently resistant to phishing attempts and credential theft.

This technology is underpinned by the FIDO2 standard, which comprises WebAuthn and the Client-to-Authenticator Protocol (CTAP). WebAuthn facilitates seamless integration of passkeys into web applications, while CTAP supports communication between devices and authenticators, ensuring flexibility and security. Together, these components offer a standardized and robust framework for passwordless authentication across various platforms.


More

Biometric Update: FIDO’s Andrew Shikiar predicts the triumph of wallets in 2026

Passkey champions to develop certification profile as focus turns to digital credentials At the annual…

Read More →

Meta Engineering: No Display? No Problem: Cross-Device Passkey Authentication for XR Devices

Meta shares a novel approach to enabling cross-device passkey authentication for devices with inaccessible displays…

Read More →

Payments Journal: Why the Future of Financial Fraud Prevention Is Passwordless

Fraud is evolving faster than ever, with AI-powered scams, deepfake-enabled identity theft, and a surge…

Read More →


Subscribe to the FIDO newsletter

Stay Connected, Stay Engaged

Receive the latest news, events, research and implementation guidance from the FIDO Alliance. Learn about digital identity and fast, phishing-resistant authentication with passkeys.