/// <summary>
/// 解密(Dpapi)
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
public static string Decrypt(string text)
{
if (string.IsNullOrEmpty(text))
{
return("");
}
return(crypt.DecryptSymmetric(symmProvider, text));
}
private void MessageReceived(MessageEventArgs args)
{
string message = args.Message;
// TODO: Decrypt message
CryptographyManager crypto = EnterpriseLibraryContainer.Current.GetInstance <CryptographyManager>();
string plainText = crypto.DecryptSymmetric(symmProvider, message);
this.txtMessages.AppendText(
args.Sender + " says: " + plainText + Environment.NewLine);
}
/// <summary>
/// WrappingMethod wraps performs the security
/// switch and then invokes the ThreadStart delegate.
/// </summary>
private void WrappingMethod()
{
//retrieve the user account information to which thread is
//switched.
if (RunAs.InheritIdentity == false)
{
//call the utility class to switch the current thread's security context.
SecurityUtility su = new SecurityUtility();
string password = Crypto.DecryptSymmetric("AesManaged", RunAs.Password);
su.Switch(RunAs.User, password, RunAs.Domain);
}
//invoke the ThreadStart delegate object passed in
//on the class constructor
serviceDelegate();
}
public void GetExceptionWhenUsingInvalidSymmectricCryptoParameters()
{
cryptographyManager.DecryptSymmetric("", "");
}