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Firmware protection method for wireless meter reading module of electric energy meter
Authors
于海斌
任哲
+5 more
张宏宇
李力刚
王忠锋
王英男
黄剑龙
Publication date
26 March 2014
Publisher
Abstract
本发明涉及一种用于电能表无线抄表模块的固件保护方法。计算关键代码段的CRC校验和,与预设的校验和比较如果计算所得的结果和程序中预设的不一致,则终止运行;如果计算所得的结果和预设的一致,则读取无线抄表模块的硬件特征信息;使用预定的计算方法计算特征信息,产生特征密钥;如果固件中预置的密钥写入方法没有被删除,则使用所述密钥写入方法将所述特征密钥写入固件中,将该写入方法删除;如果固件中的密钥写入方法已经被删除,则将产生的特征密钥与固件中的特征密钥比较,密钥一致则继续运行,否则终止运行。本发明方法简单易行,在利用硬件特征数据保证程序唯一性的同时,也保护了程序的完整性和合法性,使固件不易被破解
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Institutional Repository of Institute of Automation, CAS
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Last time updated on 29/11/2016
Institutional Repository of Institute of Automation, CAS
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oai:ir.sia.cn/:173321/20272
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Shenyang Institute of Automation,Chinese Academy Of Sciences
See this paper in CORE
Go to the repository landing page
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oai:ir.sia.cn/:173321/14150
Last time updated on 12/02/2018
Shenyang Institute of Automation,Chinese Academy Of Sciences
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.sia.cn/:173321/20272
Last time updated on 12/02/2018