An implementation of the OAuth 2.0 for an enterprise service bus

Abstract

The utilization of Service-Oriented Architecture (SOA) offers certain benefits, such as low coupling and interoperability. Considering its benefits, SOA is being used for integration of systems and applications within organizations. In order to evaluate and to provide evolution of legacy systems, SOA is an option for the modernization of the legacy systems. Regarding authorization with SOA, the OAuth 2.0 protocol was implemented as part of the solution of the Enterprise Service Bus (ESB) that is be used as important step for modernization of legacy systems. This research presents a case of study of a systematic mapping regarding the authentication and authorization mechanisms in SOA applied to legacy systems maintained and that are in use by students and professionals at University of Brasília (UnB). Performance tests were carried out in the solution allowing to check the increase in the latency introduced by the Protocol and the average flow supported. Simulations were carried out with the objective to verify the behavior of the Protocol implemented when exposed to a replay attack.