Multiparty Computation from El Gamal/Paillier Conversion

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概要

• 論文の詳細を見る

• 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.

• （社）電子情報通信学会の論文
• 2009-01-01

著者

• CHIDA Koji

  NTT Information Sharing Platform Laboratories, NTT Corporation

• Hirota Keiichi

  Dept. Of Information Media Technology School Of Information Science And Technology Tokai University

• Chida Koji

  Ntt Information Sharing Platform Laboratories Ntt Corporation

• KIKUCHI Hiroaki

  Dept. of Information Media Technology, School of Information Science and Technology, Tokai Universit

• HIROTA Keiichi

  NTT Information Sharing Platform Laboratories, NTT Corporation

• MOROHASHI Gembu

  NTT Communications

• Kikuchi Hiroaki

  Dept. Of Information Media Technology School Of Information Science And Technology Tokai University

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