JISE

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Journal of Information Science and Engineering, Vol. 26 No. 6, pp. 2319-2329

A Forward-Backward Secure Signature Scheme

DAI-RUI LIN, CHIH-I WANG AND D. J. GUAN
Department of Computer Science and Engineering
National Sun Yat-sen University
Kaohsiung, 804 Taiwan

In this paper, we propose a method for enhancing the security of Abdalla and Reyzin’s forward secure signature scheme by introducing a backward-secure detection. In the proposed method, we employed the hash chain technique in the forward-secure signature scheme. With this, we can achieve not only forward security but also backward security for digital signatures.

Keywords: forward-secure, backward-secure, digital signatures, GQ signatures, one-way hash chain

Retrieve PDF document (JISE_201006_24.pdf)