ChangeReferenceDataResponse Class

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

The response to changing the PIN or PUK.

C#

public sealed class ChangeReferenceDataResponse : PivResponse, IYubiKeyResponseWithData<Nullable<int>>, IYubiKeyResponse

Inheritance System.Object YubiKeyResponse PivResponse ChangeReferenceDataResponse

Implements

IYubiKeyResponseWithData<System.Nullable<System.Int32>>

IYubiKeyResponse

Remarks

This is the partner Response class to ChangeReferenceDataCommand

To determine the result of the command, first look at the Status. If Status is not one of the following values then an error has occurred and GetData() will throw an exception.

Status	Description
Success	The PIN or PUK was successfully changed. GetData returns null.
AuthenticationRequired	The PIN or PUK did not verify. GetData returns the number of retries remaining. If the number of retries is 0, the PIN or PUK is blocked.

Example:

  using System.Security.Cryptography;

  /* This example assumes the application has a method to collect a
   * PIN/PUK.
   */
  byte[] oldPuk;
  byte[] newPuk;

IYubiKeyConnection connection = key.Connect(YubiKeyApplication.Piv);

oldPuk = CollectPuk();
newPuk = CollectNewPuk();
var changeReferenceDataCommand =
new ChangeReferenceDataCommand(PivSlot.Puk, oldPuk, newPuk);
ChangeReferenceDataResponse changeReferenceDataResponse =
connection.SendCommand(changeReferenceDataCommand);

if (changeReferenceDataResponse.Status != ResponseStatus.Success)
{
if (resetRetryResponse.Status == ResponseStatus.AuthenticationRequired)
{
int retryCount = resetRetryResponse.GetData();
/* report the retry count */
}
else
{
// Handle error
}
}
CryptographicOperations.ZeroMemory(puk);
CryptographicOperations.ZeroMemory(newPuk);

Constructors

Name	Description
ChangeReferenceDataResponse(ResponseApdu)	Constructs a ChangeReferenceDataResponse based on a ResponseApdu received from the YubiKey.

Properties

Name	Description
StatusCodeMap

Methods

Name	Description
GetData()	Gets the number of PIN or PUK retries remaining, if applicable.