New protocols for third-party-based authentication and secure broadcast
Li Jing Gong · 1994
. This paper gives Needham-Schroeder style third-party-based authentication and key-distribution protocols that do not use conventional cryptosystems such as DES. The new protocols use polynomial interpolation and secure keyed one-way hash functions, and are efficient compared with protocols using conventional cryptosystems. The same techniques are generalized to develop protocols for secure broadcast and for secure communication. 1 Authentication Authentication, the process of identifying entities such as users and machines, is a crucial element in secure distributed systems and networks. Authentication is closely related to key distribution, and the two issues are often treated jointly [8, 19]. Research in third-party-based authentication protocols has been significantly influenced by the work of Needham and Schroeder [19], and we confine this paper to the discussion of Needham-Schroeder type authentication protocols. Typically, for two clients to authenticate each other, an authen...