Providing Secure Services in Peer-to-Peer Communications Networks with Central Security Servers

IP Telephony based on Peer-to-Peer (P2P) technology has being gaining attentions for its innovative approach to providing VoIP service. At the same time, it has raised many new research topics about how to provide the secure services, such as voice mail and supplementary service, inside new distributed P2P environments. This study proposes a generic architecture for providing secure information in P2P IP Networks. Some secure techniques and components are shown to guarantee privacy of voice mail service. This new architecture is scalable and generic for providing other secure services for IP Telephony in distributed systems.