Chaotic map‐based time‐aware multi‐keyword search scheme with designated server. Issue 13 (15th December 2015)

• Record Type: Journal Article
• Authors: Zhou, Yousheng; Xu, Guangxia; Wang, Yong; Wang, Xiaojun
• Is Part Of: Wireless communications and mobile computing. Volume 16:Issue 13(2016)
• Page Start: 1851
• Page End: 1858
• Publication Date: 2015-12-15
• Subjects: time‐aware -- multi‐keyword search -- dPEKS -- chaotic map; Wireless communication systems -- Periodicals; Mobile communication systems -- Periodicals; 621.38205
• DOI: 10.1002/wcm.2656
• Languages: English
• ISSNs: 1530-8669

Abstract

Abstract: The cloud storage service has been widely used in daily life because of its convenience. However, the service frequently suffers confidentiality problems. To address this problem, some efforts have been made on keyword search over encrypted data schemes. For instance, the chaotic‐based keyword search scheme over encrypted data has been proposed recently. However, the scheme just only support single‐ keyword search each time, which severely limits its utilization in cloud storage. This article proposes a novel chaotic‐based time‐aware multi‐keyword search scheme with designated server. Inner product similarity is adopted in our scheme to realize multiple keyword search and remove the constraint of single‐keyword search each time. Timed‐release encryption is integrated into the proposed scheme at the same time, which enables the data sender to specify the time when the cloud servers can search the encrypted data. Analysis indicates that our scheme not only can counter off‐line guessing attacks to the ciphertext and trapdoor, but also supports ranked search with a reasonable computational cost. Copyright © 2015 John Wiley & Sons, Ltd. Abstract : This paper proposes a novel chaotic‐based time‐aware multi‐keyword search scheme with designated server. Inner product similarity is adopted to realize multiple keyword search and remove the constraint of single‐keyword search each time. Timed‐release encryption is integrated into the proposed scheme at the same time, which enables the data sender to specify the time when the cloud servers can search the encrypted data.