无线网络中基于无证书聚合签名的高效匿名漫游认证方案

针对无线移动网络漫游认证中的隐私保护需求，提出了新的匿名漫游认证方案。引入在线离线签名技术，并巧妙结合聚合验证方法，设计了一个无证书聚合签名方案。与相关方案相比，该签名方案降低了签名和验证过程的计算开销，提高了通信效率。继而，基于该签名方案，提出了一种新型高效的匿名漫游认证方案，简化了传统的三方漫游认证模型。理论分析结果表明，该方案安全、有效，特别适用于大规模无线移动网络。

Efficient anonymous roaming authentication scheme using certificateless aggregate signature in wireless network

To solve the privacy-preserving problem during the roaming authentication of wireless mobile networks, a novel roaming authentication scheme with anonymity was presented. An efficient certificateless aggregate signature scheme was first constructed, by introducing the online/offline signature and combining the aggregate signature. Compared with the related schemes, the proposed scheme has higher efficiency in computations of both signature and verification, and also improves the efficiency in communications. Furthermore, based on the proposed signature scheme, a novel roaming authentication scheme with anonymity was presented, in which it simplified the traditional three-party authentication model. The theoretical analysis shows that this scheme is secure and effective, and thus it is especially suitable for large-scale wireless mobile networks.