车联网中面向V2V安全即时通信的密钥分配方案设计

Key Distribution Program Design for V2V Instant Secure Messaging in Internet of Vehicles

随着无线通信技术在车联网中的广泛应用,基于无线通信技术的"车—车"通信成为车联网目前研究的主要方向之一,"车—车"通信安全问题也成为关注热点。针对"车—车"安全通信中车辆计算和存储能力有限的问题,分析现有的密钥分配方案及典型加密算法,梳理密码应用需求,使用国产商用密码,利用哈希确保传递信息的完整性,利用对称加密确保传递信息的机密性,完成了一种面向"车—车"安全即时通信的轻量级密钥分配方案,并通过实例设计典型场景,验证该方案具有去中心化和轻量级密钥分配两大优点,为"车—车"通信安全防护技术的实际运用提供参考与借鉴。

With the wide application of wireless communication technology intheInternet of vehicles,V2V communication based on wireless communication technologies has become one of the major orientations of research,thus communication security of V2V has drawn close attentions.To solve the issues of limited computing and storage capacity of vehicles in secure V2V communications,this paper analyzes existing secret key allocation solutions and typical encryption algorithms,and sorts out demands for password application,and domestic commercial codes and hash were used to ensure the integrity of information transmission,alongside symmetrical encryption for ensuring the confidentiality of information transmission Moreover,on the basis of passwords commercially available made by China,proposes a lightweight key distribution solution for secure V2V instant messaging.In the end,the paper validates such two advantages,that the solution can offer as decentralization and lightweight key allocation,which provided references to the practical applications of V2V communication security protection technologies.