Data Encryption Standard (DES) and Advanced Encryption Standard (AES)

Abstract

Definition: Data conferencing allows participants in a live session to transfer data and to share applications. Information between the users' applications is transmitted over the network, live and in real-time. Data conferencing is one component of teleconferencing; the others are audio conferencing, and video conferencing. For a teleconferencing system that is ITU-T H.323 [1] compliant, the ITU-T T.120 set of standards [2] are recommended for data conferencing and application sharing, providing real-time communication between two or more entities in a conference. Applications specified as part of the T.120 family include application sharing, electronic whiteboarding, file exchange, and chat. Data conferencing is typically an optional capability in multimedia conferences. The shared data is usually transmitted between the users across the network using a reliable network protocol, such as the TCP (Transmission Control Protocol). DATA DISCOVERY, ROUTING AND TRAFFIC PATTERNS Definition: Resource discovery and rendezvous mechanisms are necessary to dynamically locate media servers (e.g., the nearest or best servers), data storages, membership servers (for multicast sessions), or peers (e.g., other users) for direct connections. In general, the resource discovery module of CHaMeLeoN can be categorized as either 'location-aware' or "location-free". Location-aware architectures require availability of location information. They typically use geographic or trajectory routing to forward the updates or queries and include geographic rendezvous mechanisms (such as GLS [1],