Title: A new identity-based ring signcryption scheme

Authors: Lunzhi Deng; Jiwen Zeng; Siwei Li

Addresses: School of Mathematics and Computer Science, Guizhou Normal University, Guiyang 550001, China ' School of Mathematical Sciences, Xiamen University, Fujian 361005, China ' Graduate School, Guizhou Normal University, Guiyang 550001, China

Abstract: This paper presents a new identity-based ring signcryption scheme. With this technique, anyone can choose n − 1 entities to generate a verifiable ring signcryption on behalf of the group of n members, yet the actual signcrypter remain anonymous. The scheme is proven to be indistinguishable against adaptive chosen ciphertext attacks, existentially unforgeable against adaptive chosen message and identity attacks, and unconditional signcrypter ambiguity under the random oracle model.

Keywords: identity-based cryptography; ring signcryption; random oracle model; security; ciphertext attacks; identity attacks.

DOI: 10.1504/IJESDF.2014.065736

International Journal of Electronic Security and Digital Forensics, 2014 Vol.6 No.4, pp.333 - 342

Received: 14 Jan 2013
Accepted: 01 Jul 2013
Published online: 26 Nov 2014 *

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