Systems, methods, and computer readable media for encapsulating multiple Windows® based credential providers (CPs) within a single wrapping CP are described. In general, CP credentials and fields from two or more encapsulated or wrapped CPs may be enumerated and aggregated in such a way that the order of fields from each CP is preserved, fields that may be used only once are identified and appear only once, and fields are given a new unique field identifier. The union of all such fields (minus duplicates of any one-use-only fields) may be used to generate a mapping so that the wrapping CP and CP credential may “pass-through” calls from the operating system's logon interface to the correct wrapped CP and CP credential. The disclosed techniques may be used, for example, to provide single sign-on functionality where a plurality of sign-on credentials may be used (e.g., user name/password and smart card PIN).