With the prompt growth of distributed systemsarchitectures, in particularly cloud computing, the authenti-cation policy has becomes a crucial element for distributedcommunication. To ensure a secure access to data, numerousschemes have been designed to prevent listening, dictionary andintrusion attacks into stored password lists. These approachesremain relatively weak in terms of computer security; thus, theyhave defects on mutual authentication and they try to overcometheir existing vulnerability.Our goal in this paper, is to enhance security in distributedsystems, without affecting its performance. For this reason, wepropose a new secure mutual authentication architecture fordistributed systems, based on secure cryptographic primitives atthe three communication entities involved (client, authenticationserver and n-servers of services), a consistent analysis regardingthe complexity of our approach has been demonstrated withthe BAN logic. It’s composed of three main consists phasesnamely: 1)registration phase for secure exchange of authen-tication parameters, 2)communication phase aims to ensuremutual authentication of the three actors, based on securecryptographic primitives and function (S2KExS) for keygeneration and 3)renewal phase to update the authenticationparameters.
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