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Author Lin, Chu-Hsing ♦ Lin, Hsiu-Hsia ♦ Chang, Jen-Chieh
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Secure Teleconferencing ♦ Multiparty Key Agreement ♦ Common Secret Key ♦ Constant Number ♦ Multi-party Key Agreement Protocol ♦ Many Application ♦ Abstract-multiparty Key Agreement ♦ Message Size ♦ Index Terms-multiparty Key Agreement ♦ Weil Pairing ♦ Ternary Tree ♦ Internet Service ♦ Tripartite Authen-ticated Key Agreement Protocol ♦ Tripartite Key Agreement ♦ Scalar Multiplication ♦ Flog Ni ♦ Total Number ♦ New Multiparty Key Agreement Protocol ♦ Multiparty Key Agreement Protocol ♦ Open Network ♦ Conference Key Agreement ♦ Data Transmission ♦ Communication Round
Abstract Abstract-Multiparty key agreement has many applications on internet services such as secure teleconferencing. A group of users can hold a conference securely over an open network by running a multiparty key agreement protocol to generate a common secret key. With the common secret key, data transmission over the internet is protected for confidentiality. In 2003, Barua (INDOCRYPT 2003) first proposed a multi-party key agreement protocol by using Weil pairing. The protocol is based on ternary trees and Joux's tripartite key agreement. However, in Barua's protocol the communication round for n entities is Flog ni which is proportional to the number of participants. In this paper, we propose a new multiparty key agreement protocol from Weil pairing that needs only constant number of rounds. Besides, the message size, the total number of scalar multiplications, and the number of Weil pairing are reduced. Index Terms-multiparty key agreement, tripartite authen-ticated key agreement protocol, conference key agreement, Weil pairing. I.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study