AuthenticatorInfo Class

Namespace: Yubico.YubiKey.Fido2 Assembly: Yubico.YubiKey.dll

Device information returned by the FIDO2 GetDeviceInfo command.

public class AuthenticatorInfo

Inheritance object AuthenticatorInfo

Constructors

Name	Description
AuthenticatorInfo(ReadOnlyMemory<byte>)	Build a new instance of AuthenticatorInfo based on the given CBOR encoding.

Fields

Name	Description
AaguidLength	An Aaguid is defined in the standard as 16 bytes, no more, no less.
DefaultMaximumMessageSize	If no MaximumMessageSize is given, the standard specifies a default size of 1024.
DefaultMinimumPinLength	If no MinimumPinLength is given, the standard specifies a default length of 4.
Version20	The string in the Versions property that indicates FIDO2 version 2.0.
Version21	The string in the Versions property that indicates FIDO2 version 2.1.
Version21Pre	The string in the Versions property that indicates FIDO2 version 2.1 preview.
VersionU2f	The string in the Versions property that indicates FIDO U2F.

Properties

Name	Description
Aaguid	The AAGUID, unique to the authenticator and model. This is a REQUIRED value.
Algorithms	The list of supported algorithms for credential generation. This is an optional value and can be null.
Certifications	The list of certifications the YubiKey has obtained. Each certification is a string and number. The string is the name of the certification, and the number describes the level. See The FIDO standard for more information, specifically section 7.3 of CTAP. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
Extensions	List of extension strings of CTAP supported by the authenticator. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
FirmwareVersion	The version of the firmware on the YubiKey. Note that this is an `int`, not an instance of the `FirmwareVersion` class. The standard specifies returning an int. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
ForcePinChange	If `true`, certain PIN commands will return errors until the PIN has been changed. If `false`, a PIN change is not necessary. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
MaximumCredentialBlobLength	The maximum length, in bytes, of the "credBlob" if supported. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
MaximumCredentialCountInList	The maximum number of credentials in the CredentialID list. Note that this is not the maximum number of credentials on a YubiKey, but the maximum number of credentials represented in a CredentialID list. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
MaximumCredentialIdLength	The maximum length of a CredentialID. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
MaximumMessageSize	The maximum size, in bytes, of a message sent to the YubiKey. This property is OPTIONAL, and if the YubiKey provides no value, this will be null. The standard specifies a default of 1024 (see the field DefaultMaximumMessageSize).
MaximumRpidsForSetMinPinLength	The maximum number of Relying Party IDs that the YubiKey can set via the setMinPINLength subcommand. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
MaximumSerializedLargeBlobArray	The maximum size, in bytes, of the serialized large-blob array that this YubiKey can store. If the authenticatorLargeBlobs command is not supported, this will be null. If it is supported, it will be a value greater than 1024. This property is OPTIONAL, and if the YubiKey provides no value, this will be null (the authenticatorLargeBlobs command is not supported).
MinimumPinLength	The current minimum PIN length, in Unicode code points. This property is OPTIONAL, and if the YubiKey provides no value, this will be null. The standard specifies a default of 4 (see the field DefaultMinimumPinLength).
Options	The list of supported options. Each entry in the list is a string describing the option and a boolean, indicating whether it is supported (`true`) or not (`false`). This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
PinUvAuthProtocols	List of PIN/UV Auth Protocols the YubiKey supports. They are given in the order from most to least preferred. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
PreferredPlatformUvAttempts	The number of attempts to authenticate the UV (e.g. fingerprint) that fail before using the PIN. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
RemainingDiscoverableCredentials	The estimated number of additional discoverable credentials that can be stored. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
Transports	List of transport strings of CTAP supported by the authenticator. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
UvModality	A bit field indicating the user verification methods supported by the YubiKey. The meanings of the bits are specified in the FIDO standard, namely the Registry of Predefined Values, section 3.1. This property is OPTIONAL, and if the YubiKey provides no value, this will be null.
VendorPrototypeConfigCommands	A list of vendor command IDs. If this is not null, then the YubiKey chosen supports the vendor prototype subcommand of Authenticator Config. If so, the list, which can be empty, will contain the valid vendor IDs that can be used in that subcommand. If this is null, the YubiKey chosen does not support the feature.
Versions	List of version strings of CTAP supported by the authenticator. This is a REQUIRED value.

Methods

Name	Description
GetOptionValue(string)	Get the value of the given `option` in this `AuthenticatorInfo`.
IsExtensionSupported(string)	Determine if the given `extension` is listed in this `AuthenticatorInfo`.