车联网在“端-管-云”三层架构的基础上，提供丰富的智能交通综合服务。然而，将数据放置在云端处理和存储，加大了数据被非法用户窃取的风险。为此，提出了基于网络基因GID( Gene IDentification)的车联网数据安全方案。利用GID标示数据上传者和云中可被外界访问的数据，保证数据在上传和存储在云中时的唯一性。进行数据访问时，通过比较待访问数据的网络基因与预先提取的可访问数据的基因是否一致，如果一致，则允许数据流出云端，供用户使用。经过分析和仿真表明，基于GID的车联网数据安全方案在保证数据安全性的同时，可以减少云端存储空间的浪费，增大数据上传的速率。%As a specific application of IOT ( Internet Of Things) ,IOV ( Internet Of Vehicle) based on"terminal-pipe-cloud" three-tier system,provides a wealth of intelligent transportation integrated services. However,the data placed in the cloud processing can increase the risk that the illegal user data can steal the secrets. For this,a cloud data security scheme of IOV based on network GID ( Gene IDentifi-cation) is put forward. Using GID to label data uploaded by data owners and cloud data accessed by the outside world can ensure the u-niqueness of the data at the time of uploading and storing in the cloud. When data users want to access data,they can access and use the data only when the gene of data to be accessed is consistent with the pre-extracted gene of data which can be accessed. Analysis and sim-ulation show that the cloud data security scheme of IOV based on network GID not only ensures data security but also reduces the waste of cloud storage space,while increasing the data upload speeds.
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