On the Hierarchical Structure of Trusted Authority for Unconditionally Secure Cryptography

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概要

• 論文の詳細を見る

• The recent researches in quantum computing let us understand the importance of unconditionally secure cryptosystems. Key Predistribution System, which is known to be alternative to Broadcast Encryption, is one of the unconditionally secure cryptosystems, and is attracting much attention in these days. However, no previous research have referred to the necessity of hierarchy of Trusted Authority(TA), from the viewpoint of trust transfer. In this article, we discuss the importance of transfer of trust, and show the effective method to construct hierarchical structure on TA.

• 社団法人電子情報通信学会の論文
• 2000-01-26

著者

• IMAI Hideki

  The University of Tokyo

• Hanaoka Goichiro

  The University Of Tokyo Institute Of Industrial Science

• Shibuya Yohei

  the University of Tokyo, Institute of Industrial Science

• Shibuya Yohei

  The University Of Tokyo Institute Of Industrial Science

• Imai Hideki

  The Univ. Of Tokyo And Concurrently The Research Center For Information Security Of Aist.

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• On Decoding Techniques for Cryptanalysis of Certain Encryption Algorithms(Special Section on Fundamentals of Information and Communications)
• On the Hierarchical Structure of Trusted Authority for Unconditionally Secure Cryptography
• A New Hash Function Based on SQH and NH^a
• How to List-up Weak IVs and Weak Keys in WEP : Swap Operations and Weak Patterns

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