首页> 外文会议>Applied Cryptography and Network Security >PPAA: Peer-to-Peer Anonymous Authentication
【24h】

PPAA: Peer-to-Peer Anonymous Authentication

机译:PPAA:对等匿名身份验证

获取原文
获取原文并翻译 | 示例

摘要

In the pursuit of authentication schemes that balance user privacy and accountability, numerous anonymous credential systems have been constructed. However, existing systems assume a client-server architecture in which only the clients, but not the servers, care about their privacy. In peer-to-peer (P2P) systems where both clients and servers are peer users with privacy concerns, no existing system correctly strikes that balance between privacy and accountability. In this paper, we provide this missing piece: a credential system in which peers are pseudonymous to one another (that is, two who interact more than once can recognize each other via pseudonyms) but are otherwise anonymous and unlinkable across different peers. Such a credential system finds applications in, e.g., Vehicular Ad-hoc Networks (VANets) and P2P networks. We formalize the security requirements of our proposed credential system, provide a construction for it, and prove the security of our construction. Our solution is efficient: its complexities are independent of the number of users in the system.
机译:为了追求在用户隐私和责任制之间取得平衡的认证方案,已经构造了许多匿名证书系统。但是,现有系统采用的是客户端-服务器架构,其中只有客户端而不是服务器在乎其隐私。在客户端和服务器都是具有隐私问题的对等用户的对等(P2P)系统中,没有任何现有系统正确地在隐私和责任制之间取得平衡。在本文中,我们提供了一个缺失的部分:一个凭据系统,在该系统中,对等端彼此之间是假名(即,两个交互多次的人可以通过假名彼此识别),但在其他对等端之间则是匿名且不可链接的。这样的凭证系统在例如车辆自组织网络(VANets)和P2P网络中找到应用。我们对提议的凭证系统的安全要求进行形式化,为其提供一个构造,并证明我们构造的安全性。我们的解决方案高效:其复杂性与系统中的用户数量无关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号