Client to Authenticator Protocol
Client to Authenticator Protocol ( CTAP ) is a standard for a communication protocol that describes the interaction of a security device with an information technology terminal and with which the user can prove his access authorization for registered services with increased IT security .
This authentication can be used for utility programs or application programs ; it also works for online services , websites and web applications via the integrated WebAuthn web standard .
CTAP exists in two variants. CTAP1 refers to the older, universal second factor U2F , and CTAP2 refers to authentication with the FIDO2 standard or with the WebAuthn standard.
Web links
- Client to Authenticator Protocol (CTAP) , proposed standard dated January 30, 2019
- CTAP: Protocol for more security & convenience on the web , Digital Guide, IONOS
Individual evidence
- ↑ FIDO 2.0: Client To Authenticator Protocol , FIDO Alliance , October 4, 2017, accessed on January 28, 2020