Abstract: The problem of high leakage probability and low protection efficiency of civil aviation passenger privacy data was solved, a model of civil aviation passenger privacy data protection based on multiparty security attack and defense game was proposed. Firstly, according to the multiparty security attack and defense game theory, needs to the two party rational selection strategy of the attack and defense game were explored, a rational security computing protocol for the attack and defense game were designed, the problem of low computing efficiency was resolved. Secondly, the process and model framework of civil aviation passenger privacy data protection based on multiparty security attack and defense game were designed, which depended on the rational multiparty security computing protocol, the process of civil aviation passenger privacy data protection was analyzed. Finally, the network topology of the passenger privacy data attack and defense scenario was constructed, the civil aviation passenger privacy database was randomly attacked with 100, through select 500 attackers and 100 defenders, and the results of 50 repeated attacks were compared with the traditional privacy data protection model and the privacy data protection model based on game theory. The results show that: The number of attack was increased, the leakage probability of the model in this paper is significantly lower than that of the traditional privacy data protection model and the privacy data protection model based on Game theory, and the effectiveness of privacy data protection has a significantly increased.

Key words: civil aviation passenger, privacy protection, secure multiparty computation, game theory, rational bilateral security computing agreement, Nash equilibrium

摘要： 针对民航旅客隐私数据泄露概率高与保护效率低的问题，提出了一种基于多方安全攻防博弈的民航旅客隐私数据保护模型.首先，根据多方安全攻防博弈理论，探讨了攻防博弈双方理性选取策略需求，设计一种理性攻防双方安全计算协议，解决攻防博弈双方计算效率低的问题；其次，根据理性多方安全计算协议，设计多方安全攻防博弈的民航旅客隐私数据保护流程和模型框架，分析民航旅客隐私数据保护过程；最后，布设旅客隐私数据攻防场景的网络拓扑结构，选取500个攻击者和100个防御者，对民航旅客隐私数据库进行100次随机攻击，将重复50次的攻击结果与传统隐私数据保护模型和基于博弈论的隐私数据保护模型进行比较.结果表明：随着攻击次数的增加，该模型的泄露概率相较于传统隐私数据保护模型和基于博弈论的隐私数据保护模型的泄露概率显著降低，隐私数据保护的有效性明显增加.

关键词: 民航旅客, 隐私保护, 安全多方计算, 博弈论, 理性双方安全计算协议, 纳什均衡