Flexible Secure Multicasting in Active Networks
نویسندگان
چکیده
In this paper we describe an alternative, exible approach to multicast security in active networks. Traditional schemes for securing multicast communication have key management and scalability problems for many typical applications. In addition, traditional mechanisms are not capable of expressing exible, situational security policies for multicast sessions and participants. Our scheme exploits the computational power of active networks to provide dynamic, exible security for multicast applications. One of the main advantages of our scheme is the low communication and key distribution overhead associated with multicast group management. Our approach is based on the Seraphim security architecture implementation [5], which uses active capabilities [6] for access control. Seraphim is an extensible, recon gurable security architecture that is exible and accommodates a wide variety of security policies and mechanisms. It also provides applications and users the ability to create dynamically and enforce highly customized and situational policies. Using these policies we have developed several secure multicast applications that demonstrate the exible nature and low overheads associated with our architecture.
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تاریخ انتشار 2000