SoK: Towards CCA Secure Fully Homomorphic Encryption

Hiroki Okada; Kazuhide Fukushima

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Paper

SoK: Towards CCA Secure Fully Homomorphic Encryption

Topics: Applied Cryptography; Privacy Enhancing Technologies

In Proceedings of the 20th International Conference on Security and Cryptography SECRYPT - Volume 1, 793-798, 2023 , Rome, Italy

Authors: Hiroki Okada and Kazuhide Fukushima

Affiliation: KDDI Research, Inc., Fujimino-shi, 356-8502, Japan

Keyword(s): Fully Homomorphic Encryption, Chosen-Ciphertext Attacks, Key-Dependent Message Security.

Abstract: Fully homomorphic encryption (FHE) was realized by Gentry in 2009. Since then, the current FHE construction has an inherent theoretical problem: FHE schemes are not secure against adaptive chosen-ciphertext attacks (CCA2), since FHE is malleable by definition. We conduct a survey on the existing works to circumvent this problem toward achieving better security of FHE.

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Paper citation in several formats:

Okada, H. and Fukushima, K. (2023). SoK: Towards CCA Secure Fully Homomorphic Encryption. In Proceedings of the 20th International Conference on Security and Cryptography - SECRYPT; ISBN 978-989-758-666-8; ISSN 2184-7711, SciTePress, pages 793-798. DOI: 10.5220/0012129800003555

@conference{secrypt23,
author={Hiroki Okada. and Kazuhide Fukushima.},
title={SoK: Towards CCA Secure Fully Homomorphic Encryption},
booktitle={Proceedings of the 20th International Conference on Security and Cryptography - SECRYPT},
year={2023},
pages={793-798},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0012129800003555},
isbn={978-989-758-666-8},
issn={2184-7711},
}

TY - CONF

JO - Proceedings of the 20th International Conference on Security and Cryptography - SECRYPT
TI - SoK: Towards CCA Secure Fully Homomorphic Encryption
SN - 978-989-758-666-8
IS - 2184-7711
AU - Okada, H.
AU - Fukushima, K.
PY - 2023
SP - 793
EP - 798
DO - 10.5220/0012129800003555
PB - SciTePress