A system enables use of credentials, including determining that a user has been authorized by a first credential-issuing organization and enabling the user to use a first credential issued by the first credential-issuing organization based on the determination that the user has been authorized by the first credential-issuing organization. Trust data indicating whether the user should be enabled to use a second credential issued by a second credential-issuing organization as a result of the user having been authorized by the first credential-issuing organization is accessed. A determination is made that the accessed trust data indicates that the user should be enabled to use the second credential issued by the second credential-issuing organization as a result of the user having been authorized by the first credential-issuing organization, and the user is enabled to use the second credential.