控制与信息技术Issue(6)：104-109,6.DOI:10.13889/j.issn.2096-5427.2024.06.014
嵌入式控制软件安全升级方法研究与应用
Research and Implementation of Secure Upgrade Method for Embedded Control Software
陈俊波 1邹军阳 1张天昱1
作者信息
- 1. 株洲中车时代电气股份有限公司,湖南 株洲 412001
- 折叠
摘要
Abstract
In order to respond to challenges encountered in the software upgrade of embedded systems due to frequent demand changes and technological iterations,this paper presents the design of a secure software upgrade methodology and process.A software signature and check method based on the hash-based message authentication code(HMAC)algorithm is employed,to effectively identify any tampering of object codes.A specific software update tool is introduced to initiate authorization authentication before software upgrades,alongside authentication of object codes,including names and sizes attribute,thereby preventing the invasion of abnormal files into the file system.A cyclic redundancy check(CRC)method is incorporated to verify the integrity of object codes.Additionally,the design includes a redundant file management method based on double target code loading areas,to mitigate the risk of system malfunction resulting from failed software upgrades.Subsequent practical applications demonstrated the effectiveness of this method in ensuring high security and reliability in the upgrade process of embedded control software.关键词
嵌入式系统/软件升级/轨道交通/安全性/HMAC算法/CRC校验Key words
embedded system/software upgrade/rail transit/security/hash-based message authentication code(HMAC)algorithm/cyclic redundancy check(CRC)分类
信息技术与安全科学引用本文复制引用
陈俊波,邹军阳,张天昱..嵌入式控制软件安全升级方法研究与应用[J].控制与信息技术,2024,(6):104-109,6.
