6Shannon C. communication theory of Secrecy Systems[J]. Bell SystemsTechnical Journal, 1949 :646 -715.
7Juang W S,Chiu J Y ,Chang HY. A secure and efficient delegation-base anthentication scheme in public clouds [C]. The 1st CrossStraitsConference On Information Security,2011 :96 - 102.
8Juang W S,Chiu J Y ,Chang HY. A secure and efficient delegationbaseanthentication scheme in public clouds [C]. The 1st CrossStraitsConference On Information Security,2011 :96 - 102.
