Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/38112
標題: A LIGHTWEIGHT PREPOSITIONED SECRET SHARING TREE FOR MULTICAST KEY MANAGEMENT
作者: Tsai, M.H.
王宗銘
Tang, S.S.
Wang, C.M.
蔡孟勳
關鍵字: Group communication
Secure multicast
Group rekeying
Key management
期刊/報告no:: International Journal of Innovative Computing Information and Control, Volume 6, Issue 2, Page(s) 487-500.
摘要: Secure group communications are increasingly used in the continuous growth of the Internet applications. In a secure multicast environment, an, identical data can be efficiently delivered from a source to multiple receivers within a dynamic group. A simple solution is to encrypt the transmitted data using a symmetric key. However, scalable group rekeying is the main challenge for large and dynamic groups. The key tree-based scheme is widely used to achieve logarithmic computational and transmitted costs in the rekeying process. Nevertheless, the key tree-based schemes use the fixed secret key to encrypt confidential messages until every membership changes, which is lack of security in protecting the high-value content. On the other hand, the key tree-based scheme may result in difficult problems in maintaining synchronization due to the interdependencies among rekeying messages. In this paper, we shall propose a key management scheme based on the secret sharing, in which. we apply a new lightweight prepositioned secret sharing tree-based scheme to solve the problem in the key tree-based scheme. Furthermore, we eliminate the encryption/decryption processes during every membership and periodic key changes which can dynamically change the secret key frequently.
URI: http://hdl.handle.net/11455/38112
ISSN: 1349-4198
Appears in Collections:資訊科學與工程學系所

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