public static FormsAuthenticationTicket Decrypt(string encryptedTicket, string decryptionKey, string validationType, string validationKey)
{
var section = MachineKeySection.GetApplicationConfig();
section.DecryptionKey = decryptionKey;
section.Validation = (MachineKeyValidation)Enum.Parse(typeof(MachineKeyValidation), validationType);
section.ValidationKey = validationKey;
section.CompatibilityMode = MachineKeyCompatibilityMode.Framework20SP2;
return(Decrypt(encryptedTicket));
}
private static AspNetCryptoServiceProvider GetSingletonCryptoServiceProvider()
{
// Provides all of the necessary dependencies for an application-level
// AspNetCryptoServiceProvider.
MachineKeySection machineKeySection = MachineKeySection.GetApplicationConfig();
return(new AspNetCryptoServiceProvider(
machineKeySection: machineKeySection,
cryptoAlgorithmFactory: new MachineKeyCryptoAlgorithmFactory(machineKeySection),
masterKeyProvider: new MachineKeyMasterKeyProvider(machineKeySection),
dataProtectorFactory: new MachineKeyDataProtectorFactory(machineKeySection),
keyDerivationFunction: SP800_108.DeriveKey));
}
