Multiparty computation from El Gamal/Paillier conversion

Koji Chida, Hiroaki Kikuchi, Keiichi Hirota, Gembu Morohashi

研究成果: Article

1 引用 (Scopus)

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We propose a protocol for converting the encryption function of a ciphertext into another encryption function while keeping the corresponding message secret. The proposed protocol allows conversions of the El Gamal and Paillier cryptosystems and has the potential to design an efficient multiparty protocol intended for circuits consisting of arithmetic and logical operations. We clarify the condition of circuits such that the multiparty protocol based on the proposed protocol provides better performance than previous approaches. In addition, we introduce some privacy-preserving statistical computations as an effective application of the proposed protocol.

元の言語English
ページ(範囲)137-146
ページ数10
ジャーナルIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
E92-A
発行部数1
DOI
出版物ステータスPublished - 1 1 2009

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