GetKeyAgreementCommand Class

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

Gets the YubiKey's public key for the Key Agreement algorithm based on the specified PIN/UV auth protocol.

C#

public class GetKeyAgreementCommand : Object, IYubiKeyCommand<GetKeyAgreementResponse>

Inheritance System.Object GetKeyAgreementCommand

Implements

IYubiKeyCommand<GetKeyAgreementResponse>

Remarks

Before sending a PIN to the YubiKey, it must be encrypted. The key used to encrypt is generated using a Key Agreement algorithm along with a key derivation function. In FIDO2, the key agreement algorithm is specified int the PIN/UV Auth Protocol. There are currently two. For each protocol the key agreement algorithm is ECDH with the P-256 curve, although they have different key derivation functions.

Constructors

Name	Description
GetKeyAgreementCommand()	Constructs a new instance of GetKeyAgreementCommand.
GetKeyAgreementCommand(PinUvAuthProtocol)	Constructs a new instance of GetKeyAgreementCommand.

Properties

Name	Description
Application	Gets the YubiKeyApplication (e.g. PIV, OATH, etc.) to which this command applies.
PinUvAuthProtocol	The PIN/UV Auth Protocol for which the public key is requested.

Methods

Name	Description
CreateCommandApdu()	Creates a well-formed CommandApdu to send to the YubiKey.
CreateResponseForApdu(ResponseApdu)	Creates the corresponding IYubiKeyResponse implementation for the current command.