Versions Property

Versions

List of version strings of CTAP supported by the authenticator. This is a REQUIRED value.

C#

public IReadOnlyList<string> Versions { get; }

Property Value

Type	Description
System.Collections.Generic.IReadOnlyList<System.String>

Remarks

A list of strings is not the easiest to parse, but that is the way the standard specifies reporting the supported versions. If you want to know if a particular version is supported, call the Contains method of the IReadOnlyList interface, using the strings defined in this class. For example, suppose you build a Fido2Session object and you want to know whether the connected YubiKey supports version 2.1, your code would look something like this.

   if (fido2Session.AuthenticatorInfo.Versions.Contains(AuthenticatorInfo.Version21))
   {
       . . .
   }