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CCA2 Secure Fuzzy Identity-Based Encryption with Constant Size Ciphertexts in the Standard Model
Author(s): GE Ai-jun, MA Chuan-gui, CHENG Qing-feng
Pages: 1948-
1952
Year: 2013
Issue:
10
Journal: Acta Electronica Sinica
Keyword: fuzzy identity-based encryption; chosen ciphertexts attack; bilinear pairing; standard 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 .
Citations
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