An Improved Certificate Revocation Scheme Based on Quadratic Residues Problem
Yongsheng Zhang · Computers & Security · 2009
The problem of certificate revocation has bottlenecked large-scale application of PKI.Considering the reduction of the traffic and the network load,researchers have advanced lots of revocation solutions to solve the problem,of which each has some strengths and weaknesses.The paper analyzes the Revocation Scheme Based on Quadratic Residues Problem in which a serious security leaks are found,and gives a improved scheme.The new scheme is better than the old in security,and as well as the old in timeliness and transmission quantity.