民航旅客隐私数据动态分级脱敏处理方法

Dynamic Hierarchical Desensitization Method of Civil Aviation Passenger Privacy Data

针对民航旅客个人隐私数据使用前脱敏时间长与复现应用差的问题,首先,根据网络信息安全技术,剖析了民航旅客隐私数据脱敏情景和动态角色分级控制问题,分别构建了动态角色分级控制模型和新型保留格式的隐私数据加密模型,实现了民航旅客隐私数据访问控制与加密处理的抽象化;其次,利用混合格式加密方法,提出了民航旅客隐私数据动态分级脱敏处理算法,解决了动态角色访问控制的分级脱敏处理问题;最后,通过10 000条民航旅客的隐私数据验证了民航旅客隐私数据动态分级脱敏处理算法的性能,并将基本保留格式加密方法、混合格式加密方法和动态角色分级加密方法进行比较。结果表明,利用逆推变形关联剔除方法产生的重复率约为17%,这易于推导出原始敏感数据,而利用混合格式加密方法的重复率为20%,说明在逆推变形关联剔除方法的基础上进一步加密处理后的脱敏效果较好,强化了旅客隐私数据的深度保密性,且处理旅客敏感数据的时间较少,该算法具有较高的安全性和可靠性。

ion of civil aviation passenger privacy data access control and encryption processing.Secondly,a dynamic hierarchical desensitization algorithm for civil aviation passenger privacy data was proposed using a hybrid format encryption method.And the hierarchical desensitization problem of dynamic role access control was solved.Finally,the performance of the dynamic hierarchical desensitization algorithm for civil aviation passenger privacy data was verified by privacy data of 10000 civil aviation passengers.The basic reserved format encryption method,the mixed format encryption method and the dynamic role hierarchical encryption method were compared.Results showed that the repetition rate generated by the inverse deformation association elimination method was about 17%,the original sensitive data was still derived.The repetition rate of the mixed format encryption method was about 20%,which showed that the desensitization effect after further encryption processing based on the inverse deformation association elimination method was better.Also the depth confidentiality of passenger privacy data was strengthened,and the time to process passenger sensitive data was less.The algorithm has high security and reliability.