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PLC SECURITY PROCESSING UNIT AND BUS ARBITRATION METHOD THEREOF
Yu HB(于海斌); Zeng P(曾鹏); Shang WL(尚文利); Liu XD(刘贤达); Zhao JM(赵剑明); Yin L(尹隆); Chen CY(陈春雨)
Department工业控制网络与系统研究室
Rights HolderSHENYANG INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES
Country世界专利组织
Subtype发明
Status公开
AbstractThe present invention relates to a PLC security processing unit and a bus arbitration method thereof, for use to provide an active defense means for a PLC by constructing PLC hardware and software security layers. In a hardware security layer, some hardware processing mechanisms are added to support trusted measurement, an encryption algorithm, and a signature algorithm, and the virtualization isolation technology is used; in a software security layer, transparent encryption and decryption, integrity verification, backup recovery, and a virtualization isolation security mechanism are provided. Improvement is made on security processing to achieve the purpose of security and reliability. According to the present invention, a trusted environment of a PLC can be correctly created to ensure that the PLC is booted through a strictly verified path. A new STAR trust structure is designed, loss during information transfer is reduced, and the efficiency of information transfer is improved.
description.patentprioritydatacn201711212359a
PCT Attributes
Application Date2018-06-07
2019-06-06
Application NumberWO2018CN90198
Open (Notice) NumberWO2019104988A1
Language英语
Contribution Rank1
Document Type专利
Identifierhttp://ir.sia.cn/handle/173321/24957
Collection工业控制网络与系统研究室
AffiliationSHENYANG INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES
Recommended Citation
GB/T 7714
Yu HB,Zeng P,Shang WL,et al. PLC SECURITY PROCESSING UNIT AND BUS ARBITRATION METHOD THEREOF[P]. 2019-06-06.
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