一种面向异构车载通信中基于高效签密的安全通信机制  

An Efficient Signcryption-based Secure Communication Mechanism for Heterogeneous Vehicular Communication

作　　者：张延年[1] 吴昊[1] 张云 ZHANG Yannian;WU Hao;ZHANG Yun(College of Electronic and Information Engineering,Nanjing Vocational Institute of Transport Technology,Nanjing 211188,China)

机构地区：[1]南京交通职业技术学院电子信息工程学院,南京211188

出　　处：《火力与指挥控制》2023年第2期57-65,共9页Fire Control & Command Control

基　　金：江苏高校哲学社会科学研究一般项目(2021SJA0689);江苏高校“青蓝工程”;南京交通职业技术学院重大课题(JZ2103)。

摘　　要：采用不同加密技术的车辆或者其他通信实体进行通信,就形成了异构车载网络。针对异构车载网络的安全和隐私问题,提出轻量的基于身份的条件隐私保护的签密算法(Lightweight Identity-based Conditional priva-cy-preserving Signcryption,LICS)。LICS算法利用双线性对满足车间通信的安全要求。同时,LCIS算法确保消息能够从基于身份加密(Identity-Based Cryptosystem,IBC)的车辆传输至基于公钥基础设施(Public-Key Infrastructure,PKI)的车辆。此外,LICS算法支持批量解签密,允许接收者同时批量处理多条消息,提高了解签密效率。在随机预言模型下基于q-线性Diffie-Hellman逆和q-强Diffie-Hellman的困难性问题下证明了LICS算法的安全性。性能分析表明,提出的LICS算法降低了算法的运算时间,减少了通信成本。Heterogeneous vehicular network forms when vehicles or other communicate entities make communication with different cryptographic techniques.According to the security and privacy issues in heterogeneous vehicular network,an efficient conditional privacy-preserving signcryption(LICS)algorithm is proposed.LICS algorithm uses bilinear pairing to satisfy the security requirements of heterogeneous vehicular communication.LICS algorithm ensures the transmission ofa message froma vehicle with a background of an identity-based cryptosystem(IBC)to a vehicle with a background ofa public-key infrastructure(PKI).Furthermore,it supports a batch unsigncryption method,which allows the receiver to process multiple messages simultaneously and to improve the unsigncryption efficiency.The proposed algorithm is proven secure in the random oracle model based q-bilinear Diffie-Hellman inversion problem and q-strong Diffie-Hellman problem.The performance analysis indicates that the proposed LICS algorithm reduces the operation time of the algorithm and reduces the communication cost.

关 键 词：异构车载通信 基于身份加密 签密 解签密 运算时间 通信成本 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]