Cryptanalysis of a Hierarchical Identity-Based Encryption Scheme

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概要

• 論文の詳細を見る

• Hierarchical Identity-Based Encryption (HIBE) is a generalization of identity-based encryption that mirrors an organizational hierarchy, and allows the root Private Key Generator (PKG) to distribute the workload of key generations to lower-level PKGs. In Indocrypt08, Ren and Gu proposed a new HIBE scheme, and claimed that their scheme is fully chosen-ciphertext secure in the standard model. However, by giving a concrete attack, we show that Ren-Gus HIBE is even not chosen-plaintext secure.

• （社）電子情報通信学会の論文
• 2010-04-01

著者

• Chen Min-rong

  College Of Information Engineering Shenzhen University

• WENG Jian

  Department of Computer Science, Jinan University

• CHEN Kefei

  Department of Computer Science and Engineering, Shanghai Jiao Tong University

• DENG Robert

  School of Information Systems, Singapore Management University

• Weng Jian

  Department Of Computer Science Jinan University

• Chen Kefei

  Department Of Computer Science And Engineering Shanghai Jiao Tong University

• Deng Robert

  School Of Information Systems Singapore Management University

• Deng Robert

  School Of Information Systems Singapore Management Univ.

関連論文

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