异构无线网络中基于自更新哈希链的不可否认性计费协议

Non-repudiable Billing Protocol Based on Self-updating Hash Chain for Heterogeneous Wireless Networks

异构无线网络融合是下一代网络发展的必然趋势,UMTS、LTE、WiMAX和WiFi等无线网络既相互竞争,又相互补充。安全计费是异构无线网络商用面临的主要挑战。提出了一种在异构网络中基于自更新哈希链的不可否认性计费协议,即通过采用新颖的自更新哈希链,移动终端能够快速更新可用哈希链,保证连续的快速认证。提出的方案能够提供解决计费纠纷的证据,实现计费的不可否认性、机密性和准确性。理论分析和性能仿真表明,提出的方案具有计算开销低、通信时延小等优势,满足异构无线网络的性能要求。

The integration of heterogeneous wireless networks（HWNs）is an inevitable trend in the development of next-generation networks.UMTS,LTE,WiMAX,WiFi and other wireless networks compete and cooperate mutually.Secure billing is the primary challenge faced by the commercialization of HWNs.We proposed a non-repudiable billing protocol based on the self-updating hash chain for HWNs.By using the novel self-updating hash chain technology,mobile stations（MS）can quickly update available hash chain which ensures continuous fast authentication.The proposed protocol provides the evidence to solve billing disputes,therefore,it achieves non-repudiation,confidentiality and accuracy in billing.Moreover,the theoretical analysis and performance simulation demonstrate that the proposed protocol has some advantages in aspects of low computational cost,lightweight delay and can meet the performance requirements of HWNs.