Fuzzy biometric signcryption scheme with bilinear pairings in the standard model

Authors:
Mingwu Zhang;Bo Yang;Tsuyoshi Takagi;Yanping Shen;Wenzheng Zhang
Affiliations:
Department of Computer Science and Engineering, College of Informatics, South China Agricultural University, Guangzhou, China;Department of Computer Science and Engineering, College of Informatics, South China Agricultural University, Guangzhou, China;Faculty of Mathematics, Kyushu University, Fukuoka, Japan;Department of Computer Science and Engineering, College of Informatics, South China Agricultural University, Guangzhou, China;National Laboratory for Modern Communications, Chengdu, China
Venue:
PAISI'10 Proceedings of the 2010 Pacific Asia conference on Intelligence and Security Informatics
Year:
2010

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Abstract

A new cryptographic primitive, called fuzzy biometric signcryption scheme which can perform confidentiality and authentication in a logic step while the sender and receiver identities are based on the fuzzy biometric string, is proposed. The proposed scheme possesses the error-tolerance property that allows a user with the private key for fuzzy biometric string b to decrypt a message for string b′ if and only if b and b′ are within a distance t. After given the scheme model and security definitions, a fuzzy biometric signcryption scheme in the standard model is proposed and then then security are analyzed including indistinguishable against adaptively chosen ciphertext attack and existentially unforgeable against adaptively chosen message attack.