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SECURITY ENHANCEMENTS FOR DISTRIBUTED CONTROL SYSTEMS

机译:分布式控制系统的安全性增强

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摘要

Security enhancements for distributed control systems (DCSs) must be sensitive to operational issues, especially availability. This paper presents three security enhancements for DCSs that satisfy this requirement: end-to-end security for DCS protocol communications, role-based authorization to control access to devices and prevent unauthorized changes to operational parameters, and reduced operating system kernels for enhanced device security. The security enhancements have been implemented on a laboratory-scale testbed utilizing the DNP3 protocol, which is widely used in electrical power distribution systems. The test results show that the performance penalty for implementing the security enhancements is modest, and that the implemented mechanisms do not interfere with plant operations.
机译:分布式控制系统(DCS)的安全性增强必须对操作问题特别是可用性敏感。本文提出了满足此要求的DCS的三项安全增强功能:DCS协议通信的端到端安全性,基于角色的授权以控制对设备的访问并防止对操作参数的未经授权的更改,以及减少了操作系统内核以增强设备的安全性。已使用DNP3协议在实验室规模的测试平台上实现了安全性增强,该协议已广泛用于配电系统中。测试结果表明,实施安全增强措施的性能损失不大,所实施的机制不会干扰工厂运营。

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