Title :
A New Key Exchange Protocol on Thompson Groups
Author :
Hongxin Ma ; Yingjue Fang ; Xiaofeng Wang
Author_Institution :
Dept. of Math. & Comput. Sci., Shenzhen Univ., Shenzhen, China
Abstract :
By analyzing a key agreement protocol based on conjugacy and discrete logarithm problems proposed by Sakalauskas et al., we find that this protocol is vulnerable to linear attack. Then, an improved protocol on Thompson groups is proposed. The security of the new protocol is guaranteed by the uniqueness of inverse elements of a group, hiding property of hash function, discrete logarithm problem, and conjugacy search problem.
Keywords :
cryptographic protocols; group theory; search problems; Thompson groups; conjugacy search problem; discrete logarithm problems; hash function; hiding property; inverse elements; key agreement protocol; key exchange protocol; Cryptography; Educational institutions; Finite element analysis; Generators; Protocols; Search problems;
Conference_Titel :
IT Convergence and Security (ICITCS), 2013 International Conference on
Conference_Location :
Macao
DOI :
10.1109/ICITCS.2013.6717780