Analysis of the DCS.v2 authentication protocol
Richard E. Newman, Lisa Dyson, Oswaldo Sabina · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1998
Developers of the UF Distributed Conferencing System, version 2 have proposed a protocol that involves the distribution of a session key by a trusted server to a principal with whom it will communicate. The protocol differs form standard key exchange protocols in that it attempts to address the issue of the delivery of a private key as well as the desired session key in a secure fashion. Because of the complexity of asymmetric keys, it is necessary for human principals to sort either private keys until needed. The DCS v. 2 protocol assumes that principals encrypt their private keys and store them on a network. When they seek to communicate with other principals, they must request that the appropriate encrypted key be issued to them by the server which will in turn be used to decrypt the session key. This paper present the protocol and analysis is using BAN logic.