CAJ | 학술논문

对信息源位置的隐私保护算法设计是保证网络用户通信安全基础,传统的隐私保护算法采用群签名跟踪算法,存储和搜索代价大,且具有可追踪的特点,保护性能不好.提出一种基于同态映射联合追踪的信息源位置隐私保护算法.以车用自组网络为例,进行信息源位置隐私保护系统初始化构建,在安全和隐私增强的情况下兼顾效率,采用批验证和撤销预处理减少验证和撤销检测的计算量,通过同态映射联合追踪,得到隐私保护的相对差异,调节平均偏差和方差,发送联合追踪请求,进行同态映射操作,提高隐私保护性能.仿真结果得出,算法具有较好的隐私保护性能,新算法在隐私保护水平和数据实用性方面较传统算法有明显改善.
대신식원위치적은사보호산법설계시보증망락용호통신안전기출,전통적은사보호산법채용군첨명근종산법,존저화수색대개대,차구유가추종적특점,보호성능불호.제출일충기우동태영사연합추종적신식원위치은사보호산법.이차용자조망락위례,진행신식원위치은사보호계통초시화구건,재안전화은사증강적정황하겸고효솔,채용비험증화철소예처리감소험증화철소검측적계산량,통과동태영사연합추종,득도은사보호적상대차이,조절평균편차화방차,발송연합추종청구,진행동태영사조작,제고은사보호성능.방진결과득출,산법구유교호적은사보호성능,신산법재은사보호수평화수거실용성방면교전통산법유명현개선.
The design of information source location privacy protection algorithm is to ensure the communication security based network users, privacy protection algorithm with traditional group signature tracking algorithm, storage and search cost, and has the characteristics of track, the protective performance is not good. Put forward a kind of location privacy pro-tection information source algorithm for joint tracking based on homomorphic mapping. In a vehicle ad hoc network as an example, carries on the information privacy protection system initialization position source construction, give consideration to efficiency in security and privacy enhancement cases, using batch verification and cancellation of pretreatment to reduce the verification and cancellation detection calculation, the homomorphic mapping combined with tracking, the relative dif-ference of privacy protection, adjust the average bias and variance send joint, track the request, homomorphic mapping op-erations, improve the privacy protection performance. Simulation results show this algorithm has a privacy protection, good performance, the new algorithm is compared with the traditional algorithm in the aspects of privacy level and data utility is improved obviously.