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- W2898883214 abstract "Fuzzy identity-based signature (FIBS) is exactly like a traditional identity-based signature except that the signature issued under an identity (textsf {id}) can be verified under any identity (textsf {id}') that is “close enough” to (textsf {id}). This property allows FIBS having an efficient application in biometric authentication and only three schemes over lattices exist, among which two constructions are existentially unforgetable against adaptively chosen identity and message attacks (EU-aID-CMA) in the random model, the only exception proved to be strongly unforgetable against selectively chosen identity and message attacks (SU-sID-CMA) is constructed in the standard model. In this work, we propose a new FIBS from the hardness of lattice problems for identities living in a small universe, i.e., ({0,1}^{ell }), the new construction is proved to be SU-sID-CMA in the standard model. In particular, compared with the existing lattice FIBS schemes, the new construction enjoys a smaller communication cost, and the faster signing and verifying operations, thus, it is more practical." @default.
- W2898883214 created "2018-11-09" @default.
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- W2898883214 date "2018-01-01" @default.
- W2898883214 modified "2023-09-24" @default.
- W2898883214 title "Efficient Lattice FIBS for Identities in a Small Universe" @default.
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- W2898883214 doi "https://doi.org/10.1007/978-981-13-3095-7_7" @default.
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