标题:On the provably secure CEW based on orthogonal decomposition

作者:Xu, ZQ (Xu, Zhengquan); Xiong, LZ (Xiong, Lizhi); Xu, YY (Xu, Yanyan)

来源出版物:SIGNAL PROCESSING-IMAGE COMMUNICATION卷:29期:5页:607-617DOI:10.1016/j.image.2013.10.007出版年:MAY 2014

Web of Science 核心合集中的 "被引频次":0

被引频次合计:0

摘要:Commutative Encryption and Watermarking (CEW) combines encryption and watermarking to protect confidentiality and ownership. CEW based on Orthogonal Decomposition (CEWod) has been recommended as a mechanism to implement CEW. CEWod has great potential for multimedia content protection applications if its security is validated. This study investigates the security issues of CEWod and their resolution. By redefining the encryption and watermarking operations and performing security analyses, it is proven that the security of the CEWod scheme is based on the security of the orthogonal transformational matrix, B, as well as on its sub-matrixes, R and S. Applying the principle of computational security in cryptography, the security of B, R and S can be assured by selecting appropriate parameters. With respect to the security requirements used in the existing multimedia content protection solutions, other issues that arise from the CEWod approach are addressed. Experimental results and analysis show the feasibility and robustness of CEWod. This study provides evidences that CEWod can provide the promising solution for a buyer-seller protocol-based security system. The discussion also shows that CEWod can be used to build multi-watermarking systems or re-encryption watermarking combined systems. The latter is very useful for cloud computing security. (C) 2013 Elsevier B.V. All rights reserved.

地址:[Xu, Zhengquan; Xiong, Lizhi; Xu, Yanyan] Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430079, Peoples R China.

通讯作者地址:Xu, ZQ (通讯作者),Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

电子邮件地址:xuzq@whu.edu.cn; xlzwhucs@gmail.com; xuyy@whu.edu.cn