This paper theoretically analyzes a deficiency of the existing scheme, and proposes a distributed multi-hop certification authority scheme for mobile Ad Hoc networks. In our design, we distribute the certification aut...This paper theoretically analyzes a deficiency of the existing scheme, and proposes a distributed multi-hop certification authority scheme for mobile Ad Hoc networks. In our design, we distribute the certification authority functions through a threshold secret sharing mechanism, in which each node holds a secret share and multiple nodes jointly provide complete services. Certification authority is not limited in a local neighborhood but can be completed within multi-hop location. In addition, we replace broadcast by multicast to improve system performance and reduce communication overhead. This paper resolves some technical problems of ubiquitous certification authority services, and presents a wieldy multi-hop certification authority algorithm. Simulation results confirm the availability and effectiveness of our design.展开更多
门限密码学提供了建立入侵容忍应用的新方法。文中在介绍并分析了基于ECC的ElGamal数字签名方案和t out of n秘密共享方案的基础上,提出了一个基于ECC的零知识证明方法和一个基于ECC的门限数字签名方案;研究了该方法和方案在建立入侵容...门限密码学提供了建立入侵容忍应用的新方法。文中在介绍并分析了基于ECC的ElGamal数字签名方案和t out of n秘密共享方案的基础上,提出了一个基于ECC的零知识证明方法和一个基于ECC的门限数字签名方案;研究了该方法和方案在建立入侵容忍CA中的应用。最后,对比ITTC项目中关于入侵容忍CA设计的方案,分析显示该方案在安全性、效率和可用性方面具有良好的性能。展开更多
文摘This paper theoretically analyzes a deficiency of the existing scheme, and proposes a distributed multi-hop certification authority scheme for mobile Ad Hoc networks. In our design, we distribute the certification authority functions through a threshold secret sharing mechanism, in which each node holds a secret share and multiple nodes jointly provide complete services. Certification authority is not limited in a local neighborhood but can be completed within multi-hop location. In addition, we replace broadcast by multicast to improve system performance and reduce communication overhead. This paper resolves some technical problems of ubiquitous certification authority services, and presents a wieldy multi-hop certification authority algorithm. Simulation results confirm the availability and effectiveness of our design.
文摘门限密码学提供了建立入侵容忍应用的新方法。文中在介绍并分析了基于ECC的ElGamal数字签名方案和t out of n秘密共享方案的基础上,提出了一个基于ECC的零知识证明方法和一个基于ECC的门限数字签名方案;研究了该方法和方案在建立入侵容忍CA中的应用。最后,对比ITTC项目中关于入侵容忍CA设计的方案,分析显示该方案在安全性、效率和可用性方面具有良好的性能。
