A user device stores first authentication information used to grant access to a resource associated with a first application, and configuration information relating to a second application. The user device receives an authentication request from the second application requesting second authentication information. Based on the configuration information relating to the second application, the user device determines whether the first authentication information contains some or all of the requested second authentication information. The user device generates an authentication response to the authentication request, using the first authentication information, and sends the authentication response to the second application in order to permit access to a resource associated with the second application.