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针对车联网中存在的有条件隐私保护问题,提出了一个有效的匿名通信方案.该方案基于零知识证明协议构建.在车联网中,车辆向交通管理部门注册后,通过零知识证明协议向身份验证机构证明自己的成员身份,但不泄露任何与身份相关的信息,通过验证后,车辆即可生成用于消息认证的公私钥对,并将公钥发送给验证机构保存.该方案可使车联网中的车辆进行匿名通信,并可以验证其身份的真实性,还可在发生交通争执时根据需要通过权威机构揭示相关车辆的真实身份并撤销其权限.该方案还保证了同一用户不同消息间具有不可链接性,揭示同一用户多个秘钥中的一个不会影响其他密钥的安全性.
In order to solve the problem of conditional privacy protection in car networking, an effective anonymous communication scheme is proposed, which is based on zero-knowledge proof protocol.In the car networking, after vehicles register with the traffic management department, The certification body to prove their membership, but does not disclose any identity-related information, after verification, the vehicle can generate a public-private key pair for message authentication and the public key is sent to the certification body to save the program. Networking vehicles for anonymous communications and can verify the authenticity of their identity, but also in the event of a traffic dispute when needed through the authority to reveal the true identity of the vehicle and revoke its authority.The program also guarantees that the same user between different messages With non-linkability, revealing that one of multiple keys of the same user does not affect the security of other keys.