Title :
An Improved Tripartite Authenticated Key Agreement Protocol from Pairings
Author :
He, Peng ; Xu, Qiuliang ; Liu, Ruiguang
Author_Institution :
Sch. of Comput. Sci. & Technol., Shandong Univ., Jinan, China
Abstract :
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.
Keywords :
authorisation; cryptographic protocols; telecommunication security; TAK protocol; communication messages; distributed environment; open environment; pairings; secure communications; session key; tripartite authenticated key agreement protocol; Communication channels; Computer science; Computer science education; Cryptographic protocols; Educational technology; Helium; Message authentication; Public key cryptography; Resists; Security; BDH assumption; Tripartite authenticated key agreement; active attacks; bilinear pairings; message authentication;
Conference_Titel :
Education Technology and Computer Science (ETCS), 2010 Second International Workshop on
Print_ISBN :
978-1-4244-6388-6
Electronic_ISBN :
978-1-4244-6389-3
DOI :
10.1109/ETCS.2010.136
