Analysis and Improvement of Key Distribution Scheme for Secure Group Communication
作者： Jia Ning Luo , Ming Hour Yang
DOI: 10.1155/2016/2750268
关键词: Group Coordinator 、 Encryption 、 Forward secrecy 、 Key distribution 、 Computer science 、 Computer security 、 Vulnerability (computing) 、 Session (computer science) 、 Secrecy 、 Communication in small groups
摘要: In a secure group communication, messages between coordinator and members are protected by session keys. If group’s membership changes, the keys should be updated to insure forward secrecy backward secrecy. Zhou Huang proposed key-updated scheme based on ciphertext-policy attribute encryption algorithm improve security of key-update mechanism, but their is vulnerable: malicious member may send forged control group. this paper, we analyze vulnerability in Huang’s propose an enhanced scheme. our scheme, only initiator can update verification mechanism improved prevent insiders from controlling We also give performance analysis
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