An identity-based signcryption scheme with short ciphertext from pairings

Authors:
Huiyan Chen;Shuwang Lü;Zhenhua Liu;Qing Chen
Affiliations:
State Key Laboratory of Information Security Graduate School of Chinese, Academy of Sciences, Beijing, P.R. China;State Key Laboratory of Information Security Graduate School of Chinese, Academy of Sciences, Beijing, P.R. China;State Key Laboratory of Information Security Graduate School of Chinese, Academy of Sciences, Beijing, P.R. China;Peking Knowledge Security Engineering Center, Beijing
Venue:
EUC'06 Proceedings of the 2006 international conference on Emerging Directions in Embedded and Ubiquitous Computing
Year:
2006

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Abstract

In this paper, we give a new identity-based signcryption scheme based on pairings. It is secure against adaptive chosen ciphertext and identity attack in the random oracle with the Modified Bilinear Diffie-Hellman assumption [14]. It produces shorter ciphertext than any one of schemes [7],[14] for the same plaintext and adapts to the band-constrained scenario very well.