云计算环境下密文有哪些信誉好的足球投注网站算法的研究云计算环境下密文有哪些信誉好的足球投注网站算法的研究.pdf

34 7 Vol.34 No.7 2013 7 Journal on Communications July 2013 doi:10.3969/j.issn.1000-436x.2013.07.016 1,2 2,3 1,2 1,2 1,2 1. 100876 2. 100876 3. 100876 Bloom filter TP393 A 1000-436X(2013)07-0143-11 Research on ciphertext search for the cloud environment XIANG Fei1,2, LIU Chuan-yi2,3, FANG Bin-xing1,2, WANG Chun-lu1,2, ZHONG Rui-ming1,2 (1. School of Computer Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; 2. Key Laboratory of Trustworthy Distributed Computing and Service of the Ministry of Education of China, Beijing University of Posts and Telecommunications, Beijing 100876, China; 3. School of Software Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China) Abstract: In order to ensure the data privacy, users have to encrypt the data before outsourcing them to the cloud, How- ever, the encrypted data cannot take full advantage of the rich service function and powerful computation ability of the cloud platform. Ciphertext search technology can combine the protection of user data’s privacy with the efficient usage of cloud platform services. On the basis of analyzing the ciphertext search technologies in cloud computing environment, a ciphertext search system architecture based on cloud computing environment was proposed and the key technologies of ciphertext search were studied. Finally the ciphertext search technologies’ main problems at present and the important re- search direction in future were pointed out. Key words: cloud storage; ciphertext search; reverse i