!!! Overview
[{$pagename}] is an [Abbreviation] of [Web Authentication API].


Some other user Abbreviations within [{$pagename}]:
* [FIDO] — [Fast IDentity Online], or [FIDO Alliance]. is a consortium that develops secure, open, phishing proof, [Passwordless Authentication] [standards]. FIDO [Protocol] Family is a set of protocol that was developed by [FIDO Alliance]. 
* [UAF] — [Universal Authentication Framework] 
* [U2F] — [Universal Second Factor]
* [FIDO2] - generally implies "Use any of the three protocols" 
* [CTAP] — [Client To Authenticator Protocols] — A set of low level [protocols] to communicate with the [WebAuthn Authenticators] over the [BLE]/[NFC]/[USB]. [CTAP] family includes [CTAP1|CTAP] and [CTAP2] [protocols].
** CTAP1 — A formal name of [U2F] [protocol].
** [CTAP2] — A name for second [version] of the [CTAP] protocol. The main characteristic is use of [CBOR] for encoding structures, backwards compatibility with CTAP1([U2F]), extensions and new attestation formats. Both [CTAP1|CTAP] and [CTAP2] share same transport layer, so the version difference is mainly the structural.
* [WebAuthN] — A browser [JavaScript] [API] that describes an interface for creating and managing [Public Key] [credentials].


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