An improved identity-based one-way conference key sharing system

摘要

For communication among multiple entities, Chikazawa, and Inoue(1990) published an identity-based one-way key sharing system. However,Simbo and Kawamura (1991) developed an attack which can derive thesecret information of entities through a conspiracy of other entities inthe system. The present authors propose an improved identity-basedone-way conference key sharing system to counter their attack by givingentities unique random numbers