透過您的圖書館登入
IP:18.188.175.182
  • 期刊

階層化存取控制群播系統

A Hierarchical Access Control Multicast System

摘要


當很多不同的資料由傳送者,要傳送到接收者,群播模式是比多次單播模式是更有效率的。同時傳送者能降低傳送的負荷和減少網路频寬的需求,這是群播模式的優點。在一個有組織的機構裡,通常使用群播模式傳送資料。安全層級的會員們是經由安全網路取得群播資料,並且該會員也可以儲存它。較高安全層級的會員,能用存取控制的方法,取得較低安全層級會員的群播資料。但是較低安全層級的會員是不能用這種方法,獲得較高安全層級會員的群播資料。顯然地,這是一個較高安全層級與較低安全層級會員們之間的一個存取控制問題。在這樣的環境裡,它自然形成一個階層化的存取控制群播系統。在這階層化的存取控制群播系統裡,我們提出使用橢圓曲線加解密的方法,來建立一個階層化的存取控制群播系統。建立完成後,對系統做安全分析,證明我們提出的階層化的存取控制群播系統是安全的。

並列摘要


When many different data are delivered by transmitter to receivers, the multicasting way is more efficient than multiple unicasting way. Hence, the transmitter can reduce transmission overhead and network bandwidth necessity. This is the benefit of the multicasting way.In an organization, the multicast model is usually used to convey the data. The members can obtain the multicast data via a secure communication network and they store it. The higher class can acquire the multicast data of lower class with a way of the access control, but the lower class does not obtain the multicast data of the higher class with this way. Obviously, this is an access control problem between the higher class and the lower class. In such environment, it is formed naturally a hierarchical access control multicast system.In the hierarchical access control multicast system, we proposed an elliptic curve method for encryption and decryption in order to establish a hierarchical access control multicast system. We do the security analysis to this system and the analysis results show that the system is secure.

延伸閱讀