• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

New Construction of Short Certificate-Based Signature against Existential Forgery Attacks


Abstract

Certificate-based cryptography is a useful public key cryptographic primitive that combines the merits of traditional public key cryptography and identity-based cryptography. It not only solves the key escrow problem inherent in identity-based cryptography, but also simplifies the cumbersome certificate management problem in traditional public key cryptography. So far, four short certificate-based signature schemes have been proposed. However, three of them fail in achieving the existential unforgeability under adaptive chosen-message attacks and the remaining one was not constructed in the normal framework of certificate-based signature. In this paper, we put forward a new short certificate-based signature scheme. The proposed scheme is devised in the normal framework of certificate-based signature and overcomes the security weaknesses in the previous short certificate-based signature schemes. In the random oracle model, we formally prove that it achieves the existential unforgeability against adaptive chosen-message attacks. Performance comparison shows that it is efficient and practical.


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Cite this article

[IEEE Style]
Yang Lu, Gang Wang, Jiguo Li and Jian Shen, "New Construction of Short Certificate-Based Signature against Existential Forgery Attacks," KSII Transactions on Internet and Information Systems, vol. 11, no. 7, pp. 3629-3647, 2017. DOI: 10.3837/tiis.2017.07.018

[ACM Style]
Lu, Y., Wang, G., Li, J., and Shen, J. 2017. New Construction of Short Certificate-Based Signature against Existential Forgery Attacks. KSII Transactions on Internet and Information Systems, 11, 7, (2017), 3629-3647. DOI: 10.3837/tiis.2017.07.018