Onchain signing, secured by your device
Passkey offers device-based authentication, powered by WebAuthn.
What is passkey?
Passkey support on Sui introduces a simpler, more secure way for users to authenticate and sign transactions—no passwords, seed phrases, or browser extensions required.
Built on the WebAuthn standard, passkeys let users log in and approve blockchain actions using biometrics, PINs, or hardware security keys.
By reducing friction in onboarding and improving key management, passkeys help developers create more accessible, user-friendly apps. Apps can also use passkeys as part of multisig on Sui, combining multiple authenticators for enhanced security and seamless recovery.
How do passkeys work?
A passkey is generated and stored on a user’s device (phone, laptop, or hardware security key).
During authentication, the device signs a cryptographic challenge from the server, verifying the user’s identity.
Cloud-based passkeys can sync securely across trusted devices via end-to-end encryption.
