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Journal Articles Journal of Cryptology Year : 2008

Searchable Encryption Revisited: Consistency Properties, Relation to Anonymous IBE, and Extensions

Abstract

We identify and fill some gaps with regard to consistency (the extent to which false positives are produced) for public-key encryption with keyword search (PEKS). We define computational and statistical relaxations of the existing notion of perfect consistency, show that the scheme of Boneh et al. (Advances in Cryptology--EUROCRYPT 2004, ed. by C. Cachin, J. Camenisch, pp. 506-522, 2004) is computationally consistent, and provide a new scheme that is statistically consistent. We also provide a transform of an anonymous identity-based encryption (IBE) scheme to a secure PEKS scheme that, unlike the previous one, guarantees consistency. Finally, we suggest three extensions of the basic notions considered here, namely anonymous hierarchical identity-based encryption, public-key encryption with temporary keyword search, and identity-based encryption with keyword search.

Dates and versions

hal-00918362 , version 1 (13-12-2013)

Identifiers

Cite

Michel Abdalla, Mihir Bellare, Dario Catalano, Eike Kiltz, Tadayoshi Kohno, et al.. Searchable Encryption Revisited: Consistency Properties, Relation to Anonymous IBE, and Extensions. Journal of Cryptology, 2008, 21 (3), pp.350-391. ⟨10.1007/s00145-007-9006-6⟩. ⟨hal-00918362⟩
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