Secure Channel Free ID-Based Searchable Encryption for Peer-to-Peer Group

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• 作者：Xiao-Fen Wang ; Yi Mu ; Rongmao Chen…
• 关键词：searchable encryption ; forward secrecy ; data sharing ; peer ; to ; peer group
• 刊名：Journal of Computer Science and Technology
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：31
• 期：5
• 页码：1012-1027
• 全文大小：624 KB
• 刊物类别：Computer Science
• 刊物主题：Computer Science, general
  Software Engineering
  Theory of Computation
  Data Structures, Cryptology and Information Theory
  Artificial Intelligence and Robotics
  Information Systems Applications and The Internet
  Chinese Library of Science
  
• 出版者：Springer Boston
• ISSN：1860-4749
• 卷排序：31

文摘

Data sharing and searching are important functionalities in cloud storage. In this paper, we show how to securely and flexibly search and share cloud data among a group of users without a group manager. We formalize a novel cryptosystem: secure channel free searchable encryption in a peer-to-peer group, which features with the secure cloud data sharing and searching for group members in an identity-based setting. Our scheme allows group members to join or leave the group dynamically. We present two schemes: basic scheme and enhanced scheme. We formally prove that our basic scheme achieves consistency and indistinguishability against the chosen keyword and ciphertext attack and the outsider’s keyword guessing attack, respectively. An enhanced scheme is also proposed to achieve forward secrecy, which allows to revoke user search right over the former shared data.