期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2013
卷号：2
期号：9
页码：2831-2841
出版社：IJECS
摘要：This paper addresses the problem of protecting the system from non trusted users access the policy share. Web site administratorsroutinely rely on IP-address blocking for disabling access to misbehaving users, but blocking IP addresses is not practical if theabuser routes through an anonym zing network. As a result, administrators block all known exit nodes of anonym zing networks,denying anonymous access to misbehaving and behaving users alike. To address this problem, we present Nymble, a system inwhich servers can ―blacklist‖ misbehaving users, thereby blocking users without compromising their anonymity. The interactivecounterparts of group signatures are identity escrow schemes or group identification scheme with revocable anonymity. This workintroduces a new provably secure group signature and a companion identity escrow scheme that are significantly more efficientthan the state of the art. In its interactive, identity escrow form,
