Security Token Service with Delegation

VANguard’s Security Token Service with Delegation (STSwD) allows an agency to act on behalf of a currently authenticated user to transact with another agency online.


  • A business user logs on to Agency A using VANguard's User Authentication Service (UAS).
  • The user submits a transaction at Agency A that requires assistance from Agency B.
  • Agency A requests a security token to identify the user to Agency B from the STS.
  • VANguard provides a security token identifying the user and that they are represented by Agency A.
  • Agency A provides the security token to Agency B along with the transaction that needs to be performed.


Visit our Demos page for a suite of videos on VANguard's services.