Traditional crowdsourcing based on cen-tralized management platform is vulnerable to Distributed denial of service (DDoS......

代理签名能够实现委托签名，环签名能够让签名者不泄露签名身份。根据两个环之间的联系，提出一种突破“一级”限制的多级代理环签名方......

空间K-匿名(spatial K-anonymity,SKA)是利用K-匿名的概念来保护用户免受基于位置的攻击.然而,现有的满足共匿性(reciprocity)要求......

A new architecture for scalable anonymous communication system(SACS) was proposed. The users were divided into several s......