System.ServiceModel 4.0.0.0 System.IdentityModel.Selectors.SecurityTokenProvider The SSPI security token is not capable of any cryptographic operations, but contains only the settings needed for Windows authentication. Represents a security token provider that provides an SSPI security token. Constructor 4.0.0.0 The instance of this class is used for SSPI tokens on the service. Initializes a new instance of the class. The that represents the server identity. true to expand users to include Windows Groups; otherwise, false. true to allow unauthenticated callers; otherwise, false. Constructor 4.0.0.0 The new instance of this class is used for SSPI tokens on the client. Initializes a new instance of the class. The that represents the client identity. true to allow NTLM authentication; otherwise, false. The granted to the server. Method 4.0.0.0 System.IdentityModel.Tokens.SecurityToken The security token is of type . Gets the security token. The security token. A that represents the time-out interval.