Security Analysis of a Multi-Receiver Identity-Based Key Encapsulation Mechanism

スポンサーリンク

概要

• 論文の詳細を見る

• In INDOCRYPT 2006, Chatterjee and Sarkar suggested a multi-receiver identity-based key encapsulation mechanism that is secure in the full model without random oracles. Until now, it has been believed that their scheme is the only one to provide such a security feature, while achieving sub-linear size ciphertext. In this letter, we show that their scheme is insecure in the sense that any revoked user can retrieve a message encryption key, even without colluding with other revoked users. Our attack comes from an analysis of a publicly computable surjective function used in the scheme.

• （社）電子情報通信学会の論文
• 2009-01-01

著者

• Park Jong

  Kyung Hee Univ. Kor

• LEE Dong

  Center for Information Storage Device, Yonsei University

• Park Jong

  Center For Information Security Technologies (cist) Korea University

• Lee Dong

  Center For Information Security Technologies (cist) Korea University

• LEE Dong

  Center for Information and Security Technologies, Korea University

• PARK Jong

  Center for Information and Security Technologies, Korea University

関連論文

• Mechanical Filter on Actuator for System Stability of 9.5mm Drive
• Security Analysis of a Multi-Receiver Identity-Based Key Encapsulation Mechanism
• Cryptanalysis of Chatterjee-Sarkar Hierarchical Identity-Based Encryption Scheme at PKC 06
• On the Security of Luo et al.'s Fully Secure Hierarchical Identity Based Encryption Scheme
• Lower urinary tract injuries diagnosed after hysterectomy : Seven-year experience at a cancer hospital

スポンサーリンク