An Efficient Hierarchical Key Management of H.264/Scalable Video Coding
This paper proposes a novel scheme to efficiently manage multi-keys used for layered access control of H.264/scalable video coding. The approach is to transform this problem into hierarchical encryption, by accomplishing with cryptographic hash function and two-dimensional key derivation. The efficiency of the proposed scheme is summarized in the following three points. 1) It is secure to prevent various types of attackers. 2) It is flexible to update keys for adding/deleting a layer or a user. 3) It costs little storage for both key server and users to keep keys.
multi-keys hierarchical key management scalable ideo coding
Min Fan Chun Yuan Yan Zhang
Shenzhen Graduate School of Tsinghua University Shenzhen, China Shenzhen Graduate School of Harbin I Shenzhen Graduate School of Tsinghua University Shenzhen, China Shenzhen Graduate School of Harbin Institute of Technology Shenzhen, China
国际会议
厦门
英文
757-760
2010-10-29(万方平台首次上网日期,不代表论文的发表时间)