On the Security of Some Self-healing Key Distribution Schemes
Self-healing key distribution schemes are particularly useful when there is no network infrastructure or such infrastructure has been destroyed. A self-healing mechanism can allow group users to recover lost session keys and is therefore quite suitable establishing group keys over an unreliable network where broadcast messages loss may occur frequently. Many self-healing key distribution schemes are proposed. Through security analysis,we found that three schemes are insecure.The three insecure self-healing key distribution schemes come from three different papers. We designed the corresponding attack methods.Our attack methods showed that the revoked users (or any users) can also get the session key. It violates the important security requirement of self-healing key distribution.
key distribution cryptanalysis self-healing
Huaqun Wang
School of Information Engineering,Dalian Ocean University,Dalian,China; State Key laboratory of Integrated Service Networks(Xidian University),Xi’an,China
国际会议
南京
英文
777-780
2010-11-01（万方平台首次上网日期，不代表论文的发表时间）