Xi Chen; Yong Li

International Journal of Wireless and Microwave Technologies (IJWMT)

IJWMT Vol. 2, No. 1, 15 Feb. 2012

Cover page and Table of Contents: PDF (size: 276KB)

Efficient Proxy Re-encryption with Private Searching in the Untrusted Cloud

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Author(s)

Xi Chen ^1,* Yong Li ¹

1. Key Laboratory of Communication & Information Systems (Beijing Jiaotong University), Beijing Municipal Commission of Education, Beijing 100044, China

* Corresponding author.

DOI: https://doi.org/10.5815/ijwmt.2012.01.08

Received: 10 Nov. 2011 / Revised: 8 Dec. 2011 / Accepted: 10 Jan. 2012 / Published: 15 Feb. 2012

Index Terms

Public key encryption with keyword search, proxy re-encryption, untrusted cloud, private searching

Abstract

As promising as cloud computing is, this paradigm brings forth new security and privacy challenges when operating in the untrusted cloud scenarios. In this paper, we propose a new cryptographic primitive Proxy Re-encryption with Private Searching (PRPS for short). The PRPS scheme enables the data users and owners efficiently query and access files storaged in untrusted cloud, while keeping query privacy and data privacy from the cloud providers. The concrete construction is based on proxy re-encryption, public key encryption with keyword search and the dual receiver cryptosystem. The scheme is semantically secure under the BDH assumption.

Cite This Paper

Xi Chen,Yong Li,"Efficient Proxy Re-encryption with Private Searching in the Untrusted Cloud", IJWMT, vol.2, no.1, pp.53-59, 2012. DOI: 10.5815/ijwmt.2012.01.08

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