Chosen Ciphertext Secure Keyed Two-Level Homomorphic Encryption

Yusaku Maeda, Koji Nuida

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

1 被引用数 (Scopus)

抄録

Homomorphic encryption (HE) is a useful variant of public key encryption (PKE), but it has a drawback that HE cannot fully achieve IND-CCA2 security, a standard security notion for PKE. Emura et al. (PKC 2013) proposed a “keyed" version of HE, called KH-PKE, which introduces a separate key for homomorphic evaluation and then achieves security close to IND-CCA2. Current KH-PKE schemes are classified into ones supporting only a single kind of homomorphic operation (addition or multiplication) and others that are fully homomorphic but are consequently not very efficient; no intermediate schemes with both efficiency and richer functionality are known so far. In this paper, we propose a “two-level" KH-PKE scheme for evaluating degree-two polynomials, by cleverly combining Emura et al.’s generic framework with a recent efficient two-level HE by Attrapadung et al. (ASIACCS 2018).

本文言語英語
ホスト出版物のタイトルInformation Security and Privacy - 27th Australasian Conference, ACISP 2022, Proceedings
編集者Khoa Nguyen, Guomin Yang, Fuchun Guo, Willy Susilo
出版社Springer Science and Business Media Deutschland GmbH
ページ209-228
ページ数20
ISBN(印刷版)9783031223006
DOI
出版ステータス出版済み - 2022
イベント27th Australasian Conference on Information Security and Privacy, ACISP 2022 - Wollongong, オーストラリア
継続期間: 11月 28 202211月 30 2022

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
13494 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

会議

会議27th Australasian Conference on Information Security and Privacy, ACISP 2022
国/地域オーストラリア
CityWollongong
Period11/28/2211/30/22

!!!All Science Journal Classification (ASJC) codes

  • 理論的コンピュータサイエンス
  • コンピュータサイエンス一般

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