Multi-receiver identity-based signcryption scheme in the standard model

Authors:
Yang Ming;Xiangmo Zhao;Yumin Wang
Affiliations:
School of Information Engineering, Chang'an University, Xi'an, Shaanxi, China;School of Information Engineering, Chang'an University, Xi'an, Shaanxi, China;State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi, China
Venue:
ICICA'11 Proceedings of the Second international conference on Information Computing and Applications
Year:
2011

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Abstract

Signcryption is a novel cryptographic primitive that simultaneously provides the authentication and encryption in a single logic step. To adapt multi-receiver setting, motivated by Waters' identity based encryption scheme, the first multi-receiver identity-based signcryption scheme in the standard model was proposed. Then we prove its semantic security under the assumption of Decisional Bilinear Diffie-Hellman and its unforgeability under the hardness of Computational Diffie-Hellman Problem.