网络空间广义功能安全的问题与对策

Jiangxing Wu
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引用次数: 5

摘要

网络空间普遍存在的内生安全问题和攻击威胁对传统的功能安全理论和方法提出了颠覆性挑战。在当前的网络物理系统(CPS)设计中,功能安全和网络安全日益相互交织、不可分割,演变为广义功能安全(S&S)问题。传统的可靠性和网络安全技术无法为硬件和软件的网络攻击提供可量化的设计和验证指标,这些攻击具有普遍的内生安全问题,CPS设施或设备的功能安全已成为一个可怕的幽灵。网络空间内生安全范式提出的动态异构冗余(DHR)体系结构和编码信道理论(CCT)可以综合处理随机故障和不确定网络攻击,其广义鲁棒控制机制可以解决概率或非概率扰动下功能安全定量设计的普遍问题。DHR作为一种广义的功能安全使能结构,为解决网络空间跨学科领域常见的内生安全问题开辟了新的方向。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Problems and solutions regarding generalized functional safety in cyberspace
The common endogenous security problems in cyberspace and related attack threats have posed subversive challenges to conventional theories and methods of functional safety. In the current design of the cyber physical system (CPS), functional safety and cyber security are increasingly intertwined and inseparable, which evolve into the generalized functional safety (S&S) problem. The conventional reliability and cybersecurity technologies are unable to provide security assurance with quantifiable design and verification metrics in response to the cyberattacks in hardware and software with common endogenous security problems, and the functional safety of CPS facilities or device has become a frightening ghost. The dynamic heterogeneity redundancy (DHR) architecture and coding channel theory (CCT) proposed by the cyberspace endogenous security paradigm could handle random failures and uncertain network attacks in an integrated manner, and its generalized robust control mechanism can solve the universal problem of quantitative design for functional safety under probability or improbability perturbation. As a generalized functional safety enabling structure, DHR opens up a new direction to solve the common endogenous security problems in the cross-disciplinary fields of cyberspace.
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