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Journal of Information Science and Engineering, Vol. 30 No. 3, pp. 895-910 (May 2014)


A Strong Designated Verifier Ring Signcryption Scheme Providing Strongest Signers' Anonymity


SHIN-JIA HWANG AND JYONG-YE CHEN*
Department of Computer Science and Information Engineering
Tamkang University
Tamsui, New Taipei City, 251 Taiwan
E-mail: {sjhwang@mail; *697410727@s97}.tku.edu.tw

The strong designated verifier ring signature scheme provides signer anonymity to protect actual signers identity. However, the message of the strong designated verifier ring signature may disclose some identity information related to the actual signer. To remove this flaw, this study proposes a novel strong designated verifier ring signcryption scheme. Compared with the Han et al. and Huang et al. ring signcryption schemes, the proposed scheme provides strongest signer anonymity to protect the signer identity. This scheme also provides signer admission to show who the actual signer is. Unlike some proposed schemes, which still suffer the message length restriction, this scheme is free from the message length restriction to provide message confidentiality.

Keywords: ring signcryption, signer anonymity, strong ring signature scheme with designated verifiers, signatures, encryption

Full Text () Retrieve PDF document (201405_20.pdf)

Received April 13, 2012; revised February 15, 2013; accepted June 11, 2013.
Communicated by Wen-Guey Tzeng.