一種基于時間流的安全多播密鑰更新機制的研究
Study on a Key Update Mechanism for Secure Multicast Based on Time Stream
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摘要: 基于Internet網(wǎng)的多播業(yè)務(wù)的廣泛應(yīng)用推動了人們對安全多播的研究,其中,對于密鑰更新 機制的研究是一個熱點也是難點。該文設(shè)計了一種變長輸出摘要和變長密鑰的單向散列函數(shù)用于所提出的一種基于時間流的密鑰更新協(xié)議,并分析了該協(xié)議的各種性能。
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關(guān)鍵詞:
- 安全多播; 單向散列函數(shù); 密鑰樹; 密鑰更新
Abstract: Several emerging internet services by multicast force the research on secure multicast, and the research on key update is a big challenge. This paper designs a hash function of variable message digest and variable key length for a key update protocol that is proposed based on time stream, and analysises the overall performances for the protocol. -