Volume 5 Number 5 (Sep. 2016)
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IJCCE 2016 Vol.5(5): 358-366 ISSN: 2010-3743
DOI: 10.17706/IJCCE.2016.5.5.358-366

Certificateless Broadcast Proxy Re-encryption With Group-Oriented Model

Chih-Hung Wang, Pei-Jyun Lu
Abstract—The major concept of certificateless cryptosystem is to remove the certificate in public-key cryptosystem and solve the key escrow drawback in the ID-based scheme. For the privacy protection in the public cloud environment, the proxy re-encryption scheme was developed to allow a semi-trusted proxy to transform a ciphertext under one person’s public key into other ciphertext under another person’s public key without decryption. Nowadays, many related applications of certificateless proxy re-encryption scheme have been proposed. However, most of certificateless proxy re-encryption schemes allow only a single receiver, which means for more receivers, re-transforming the ciphertext multiple times is needed. This paper introduces a novel notion of proxy re-encryption in which the sender can broadcast the re-encrypted ciphertext to a group of receivers through the proxy’s assistance based on certificateless public key cryptography. The proposed scheme has the property of constant-size re-encryption key and ciphertext, and is particularly suitable for the application executing in the enormous cloud networking.

Index Terms—Certificateless cryptosystem, proxy re-encryption, broadcast encryption, cloud security.

The authors are with the Department of Computer Science and Information Engineering, National Chiayi University, Chiayi City, Taiwan 60004.

Cite:Chih-Hung Wang, Pei-Jyun Lu, "Certificateless Broadcast Proxy Re-encryption With Group-Oriented Model," International Journal of Computer and Communication Engineering vol. 5, no. 5, pp. 358-366, 2016.

General Information

ISSN: 2010-3743
Frequency: Quarterly
Editor-in-Chief: Dr. Maode Ma
Abstracting/ Indexing: EI (INSPEC, IET), Google Scholar, Crossref, Engineering & Technology Digital Library, ProQuest, and Electronic Journals Library
E-mail: ijcce@iap.org
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