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CCA2 Secure Fuzzy Identity-Based Encryption with Constant Size Ciphertexts in the Standard Model
Author(s): 
Pages: 1948-1952
Year: Issue:  10
Journal: Acta Electronica Sinica

Keyword:  fuzzy identity-based encryptionchosen ciphertexts attackbilinear pairingstandard model;
Abstract: Fuzzy identity-based encryption can provide an error-tolerance property for identity-based systems ,and it allows a sender to encrypt a message to all users who have a certain set of attributes .In this paper ,we proposed a fuzzy identity-based en-cryption scheme with constant size of ciphertexts that is indistinguishable against adaptive chosen ciphertexts attacks (CCA2 )in the standard model .Compared with other existing schemes ,this construction can satisfy the application requirements ,as it can provide better efficiency in terms of the communication and computation cost as well as a stronger security guarantee .
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