An Improved Tripartite Authenticated Key Agreement Protocol from Pairings

Key agreement protocols are essential for secure communications in open and distributed environment. The study of tripartite key agreement has great theoretical and practical significance. Shim and Woo pointed out that the four tripartite authenticated key agreement protocols proposed by Al-Riyami a...

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Bibliographic Details
Main Authors: Peng He, Qiuliang Xu, Ruiguang Liu
Format: Conference Proceeding
Language:English
Subjects:
active attacks
BDH assumption
bilinear pairings
Communication channels
Computer science
Computer science education
Cryptographic protocols
Educational technology
Helium
Message authentication
Public key cryptography
Resists
Security
Tripartite authenticated key agreement
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Summary:Key agreement protocols are essential for secure communications in open and distributed environment. The study of tripartite key agreement has great theoretical and practical significance. Shim and Woo pointed out that the four tripartite authenticated key agreement protocols proposed by Al-Riyami and Paterson were insecure. Modifying the communication messages, an active adversary is able to calculate the session key. Therefore, we propose an improved TAK protocol (TAK-V) resisting all known active attacks. Finally, we analyze the security and computation efficiency.
DOI:10.1109/ETCS.2010.136