TUP: A New eCK-Secure AKE Protocol under the CDH Assumption

DOI: 10.4236/ijcns.2012.56043   PDF   HTML     3,131 Downloads   5,372 Views   Citations


The design and analysis of authenticated key exchange protocol is an important problem in information security area. At present, extended Canetti-Krawczyk (eCK) model provides the strongest definition of security for two party key agreement protocol, however most of the current secure protocols can not be prove to secure without Gap assumption. To avoid this phenomenon, by using twinning key technology we propose a new two party key agreement protocol TUP which is obtained by modifying the UP protocol, then in conjunction with the trapdoor test, we prove strictly that the new protocol is secure in eCK model. Compared with previous protocols, the security assumption of new proposal is more standard and weaker, and it also solves an open problem in ProvSec'09.

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Q. Zhou and Z. Yang, "TUP: A New eCK-Secure AKE Protocol under the CDH Assumption," International Journal of Communications, Network and System Sciences, Vol. 5 No. 6, 2012, pp. 332-336. doi: 10.4236/ijcns.2012.56043.

Conflicts of Interest

The authors declare no conflicts of interest.


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