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On ELFs, Deterministic Encryption, and Correlated-Input Security

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Advances in Cryptology – EUROCRYPT 2019 (EUROCRYPT 2019)

Part of the book series: Lecture Notes in Computer Science ((LNSC,volume 11478))

Abstract

We construct deterministic public key encryption secure for any constant number of arbitrarily correlated computationally unpredictable messages. Prior works required either random oracles or non-standard knowledge assumptions. In contrast, our constructions are based on the exponential hardness of DDH, which is plausible in elliptic curve groups. Our central tool is a new trapdoored extremely lossy function, which modifies extremely lossy functions by adding a trapdoor.

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Authors and Affiliations

  1. Princeton University, Princeton, USA

    Mark Zhandry

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  1. Mark Zhandry
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Correspondence to Mark Zhandry .

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Editors and Affiliations

  1. Technion, Haifa, Israel

    Yuval Ishai

  2. COSIC Group, KU Leuven, Heverlee, Belgium

    Vincent Rijmen

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© 2019 International Association for Cryptologic Research

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Zhandry, M. (2019). On ELFs, Deterministic Encryption, and Correlated-Input Security. In: Ishai, Y., Rijmen, V. (eds) Advances in Cryptology – EUROCRYPT 2019. EUROCRYPT 2019. Lecture Notes in Computer Science(), vol 11478. Springer, Cham. https://doi.org/10.1007/978-3-030-17659-4_1

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  • DOI: https://doi.org/10.1007/978-3-030-17659-4_1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-17658-7

  • Online ISBN: 978-3-030-17659-4

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