System.Security 2.0.0.0 4.0.0.0 Use the interface with the class to decrypt an XrML <encryptedGrant> element. Defines methods that decrypt an XrML <encryptedGrant> element. Method 2.0.0.0 4.0.0.0 System.IO.Stream The method decrypts an XrML <encryptedGrant> element and returns a plaintext stream. Decrypts an XrML <encryptedGrant> element that is contained within a object. A object that contains a decrypted <encryptedGrant> element. An object that encapsulates the algorithm used for XML encryption. A object that contains an asymmetric key to use for decryption. A stream object that contains an <encryptedGrant> element to decrypt.