A Real Time Key Distribution of Group Communication Based on Hash Chains
Lan Bing-wei · Computer and Information Technology · 2008
Group communication,as an important application of internet,is a high-efficient interactive pattern of group message,Nevertheless,since the threats to network are more grievous,the security problem of group communication becomes more worrying.Group communication should guarantee the information security,Then,we provide a real time key distribution of group communication based on hash chains.In this scheme with the hash chain we provide the special application key to the user in the group,and realize sending the keys online and ensure its safety.And then we make a Hashed Random Preloaded Schemes(HARPS) in the group communication.We send different group of keys for every user,in this condition,even the attacker get lots of the keys,the system can also works well safely.In this scheme we improve the security of the communication without sacrificing the efficiency of the system.