Abstract We propose an efficient revocable message authentication scheme to address the security and privacy problems of vehicular networks. The core of our scheme is a pairing-free online/offline certificateless signature with efficient revocation. To further enhance efficiency, our scheme allows roadside unit to assist nearby vehicles to verify signatures through the use of cuckoo filter. To handle revocation, the key generation center will periodically update time keys of the non-revoked users. To reduce the workload of the key generation center, we apply a node selection algorithm known as KUNodes. We also propose to utilize blockchain technology to store the revocation list. Hence, the transparency of user revocation is enhanced, as the vehicles can check the state of revocation list from the immutable blockchain.

中文翻译：

---

使用区块链进行车载网络的具有撤销透明性的高效消息身份验证

摘要 我们提出了一种有效的可撤销消息认证方案来解决车载网络的安全和隐私问题。我们方案的核心是具有高效撤销的免配对在线/离线无证书签名。为了进一步提高效率，我们的计划允许路边单位通过使用布谷鸟过滤器协助附近的车辆验证签名。为处理撤销，密钥生成中心会定期更新未撤销用户的时间密钥。为了减少密钥生成中心的工作量，我们应用了一种称为 KUNodes 的节点选择算法。我们还建议利用区块链技术来存储撤销列表。因此，增强了用户撤销的透明度，因为车辆可以从不可变的区块链检查撤销列表的状态。