基于区块链验证算法的车载软件Uptane安全框架升级研究

Research on Uptane Security Framework Upgrade for Vehicle Software Based on Blockchain Verification Algorithm

为解决当前车载软件Uptane框架存在的安全问题,研究设计了一种基于区块链验证算法的Uptane框架优化方案。研究方案采用分级验证和区块链技术相结合的方法,将节点分为普通节点和代表成员节点,以此来减轻车载设备的计算负担。与现有的Uptane框架相比,优化后的Uptane框架更新50个数据时,框架的电子控制单元使用内存减少约15 MB;其验证50个节点时,花费时间减少约7.4 s;在安全密钥泄露的情况下,数据丢失率为0。研究对Uptane框架的升级改进有助于提高车载软件更新框架的安全性和性能,从而更好地应对汽车行业面临的网络安全挑战。

In order to address the security issues of the current Uptane framework for vehicle software,an optimization scheme for the Uptane framework based on Blockchain Verification algorithm is designed in this article.The research scheme adopts a combination of Hierarchical Verification and Blockchain technology to divide nodes into ordinary nodes and representative member nodes,in order to reduce the computational burden on vehicle devices.Compared with the existing Uptane framework,the optimized Uptane framework reduces the memory usage of the electronic control unit by approximately 15MB when updating 50 data points;When verifying 50 nodes,the time spent is reduced by about 7.4 seconds.In the case of security key leakage,the data loss rate is 0%.Research on upgrading and improving the Uptane framework can help improve the security and performance of in vehicle software update frameworks,thereby better addressing the network security challenges faced by the automotive industry.