/// <summary>
/// Check for the existence of a key and set the Options accordingly.
/// </summary>
/// <param name="provider">Provider Object</param>
/// <param name="keyName">Name of the key to destroy</param>
/// <param name="cngKeyOpts">MachineKey or None depending on where it found the key.</param>
/// <returns></returns>
private bool doesKeyExists(CngProvider provider, string keyName, CngKeyOpenOptions openOpts = CngKeyOpenOptions.MachineKey)
{
bool keyExists = false;
try
{
keyExists = CngKey.Exists(keyName, provider, openOpts);
}
catch (CryptographicException e)
{
throw new CryptographicException(string.Format("There was an error contacting provider {0}. It may not exist or may be configured incorrectly. Error Code:0x{1:X8} Exception thrown:{2}\nStack Trace:{3}\n",
provider.ToString(), e.HResult, e.Message, e.StackTrace), e);
}
return(keyExists);
}
