Generic Construction of Dual-Server Public Key Encryption With Keyword Search on Cloud Computing

IEEE Access

Tsu-Yang Wu¹  Yu-Chi Chen²  Kaibin Huang³  Raylin Tso³  Sk Md Mizanur Rahman⁴ 

[1] College of Computer Science and Engineering, Shandong University of Science and Technology, Qingdao, China;Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, Taiwan;Department of Computer Science, National Chengchi University, Taipei, Taiwan;School of Engineering Technology and Applied Science (SETAS), Centennial College, Toronto, ON, Canada;

关键词: Keyword search;    encryption;    public key;    dual server (DS);    cloud computing;   

DOI  :  10.1109/ACCESS.2020.3017745

来源: DOAJ

【 摘 要 】

Chen et al. indicated the inner keyword guessing attack coming from the low entropy of keywords, which eliminates the semantic security of most keyword search schemes. Then, they accordingly propose the first dual-server PEKS scheme (abbreviated as DS-PEKS) and its related security models to prevent such attacks. In the DS-PEKS architecture, two non-collusive servers must corporate to execute the keyword search procedure. No individual server has the capability of determining the equivalence between keywords alone, and thus the inner keyword guessing attacks can be avoided. In this article, we found that the security models are lack of soundness and strength, so our first result is to define new stronger and sounder security models which implies all security aspects of original models. Secondly, we also propose a generic construction of DS-PEKS schemes based on IND-CCA2 secure PKE schemes. Finally, we analyze the newly proposed DS-PEKS scheme, and proof its security with the stronger models based on the IND-CCA2 security in the standard model.

【 授权许可】

Unknown