【摘要】 群智感知系统在实际部署中还存在着感知数据泄露、用户参与积极性低等问题.为提升用户积极性,适当的激励是必须的.然而,在实施激励过程中,往往需要用户身份信息来完成奖励发放,而用户一般不愿意泄露身份隐私.为了解决这一矛盾,提出一种基于随机假名和安全哈希函数的匿名认证协议.该认证协议利用随机假名的随机性切断用户真实身份与假名之间的关联.利用安全哈希函数的单向性,防止攻击者从截获的数据包中提取与用户身份以及奖励相关的信息.最后的安全分析和性能分析表明,本文提出的匿名认证协议在安全和计算性能方面符合群智感知环境的要求.更多还原

【Abstract】 There are some problems for crowd sensing system,such as data leakage,user participation unsustainable. To enhance the user’s enthusiasm,appropriate incentives are necessary. However,the use identity,which is generally reluctant to disclose,is needed in the implementation of the incentive process. In this paper,we propose a pseudonym-based authentication protocol. The proposed scheme uses the pseudonym mechanism and one-way hash function to achieve user incentives,while protecting their identity. The analysis of our protocol is demonstrated that it can meet the security and performance requirement of a crowd sensing system.更多还原