车联网系统中,车辆行驶过程需与其他车辆通信以实现信息交换,要求必须具备高安全、低延迟、用户匿名性等安全特性.认证与密钥交换协议以密码算法为基础旨在完成会话密钥协商,用于通信双方后续信息交换,是保证车联网通信安全的重要手段....车联网系统中,车辆行驶过程需与其他车辆通信以实现信息交换,要求必须具备高安全、低延迟、用户匿名性等安全特性.认证与密钥交换协议以密码算法为基础旨在完成会话密钥协商,用于通信双方后续信息交换,是保证车联网通信安全的重要手段.现有协议注册阶段需在线下安全信道中进行,与实际不符,且认证阶段多基于第三方并需多轮信息交互,增加了过程复杂度.因此设计了一种基于公共信道的V2V(vehicle to vehicle)协议,协议交互过程不需依赖第三方,仅需进行2轮信息交换,同时添加快速登录阶段以解决网络突然中断造成的信息交换延迟问题,理论分析与形式化验证结果表明协议满足认证性与保密性等安全性质.展开更多
In this paper,the Bell-LaPadula formal model for secure computer systems is introduced,and the key theoretical results are proved. In addition, we also point out that the sufficient and necessary condition,given by re...In this paper,the Bell-LaPadula formal model for secure computer systems is introduced,and the key theoretical results are proved. In addition, we also point out that the sufficient and necessary condition,given by reference[11], for secure information system is wrong. Exploiting a new concept,the correct sufficient and necessary condition is presented.展开更多
文摘车联网系统中,车辆行驶过程需与其他车辆通信以实现信息交换,要求必须具备高安全、低延迟、用户匿名性等安全特性.认证与密钥交换协议以密码算法为基础旨在完成会话密钥协商,用于通信双方后续信息交换,是保证车联网通信安全的重要手段.现有协议注册阶段需在线下安全信道中进行,与实际不符,且认证阶段多基于第三方并需多轮信息交互,增加了过程复杂度.因此设计了一种基于公共信道的V2V(vehicle to vehicle)协议,协议交互过程不需依赖第三方,仅需进行2轮信息交换,同时添加快速登录阶段以解决网络突然中断造成的信息交换延迟问题,理论分析与形式化验证结果表明协议满足认证性与保密性等安全性质.
文摘In this paper,the Bell-LaPadula formal model for secure computer systems is introduced,and the key theoretical results are proved. In addition, we also point out that the sufficient and necessary condition,given by reference[11], for secure information system is wrong. Exploiting a new concept,the correct sufficient and necessary condition is presented.
