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Journal of Inforamtion Science and Engineering, Vol.18 No.1, pp.41-46 (January 2002)

An Efficient Authenticated Encryption Scheme With
Message Linkages and Low Communication Costs

Yuh-Min Tseng* and Jinn-Ke Jan
*Department of Information Management
Nan-Kai College of Technology and Commerce
Nantou, 542 Taiwan
Institute of Applied Mathematics
National Chung Hsing University
Taichung, 402 Taiwan

An efficient authenticated encryption scheme with message linkages is proposed. For achieving both privacy and integrity in data communications, the proposed scheme requires smaller bandwidth and computational time when compared to previously proposed authenticated encryption schemes with message linkages. Moreover, the proposed scheme allows the verifier to recover and verify the message blocks simultaneously, and hence, the message recovery phase could be speeded up. The security of the proposed scheme is based on the authenticated encryption scheme as well as the one-way hash cryptographic function assumption.

Keywords: cryptography, authentication, encryption, message linkage, signature

Full Text () Retrieve PDF document (200201_04.pdf)

Received November 25, 1999; revised April 11, 2000; accepted May 3, 2000.
Communicated by Hsu-Chun Yen.