서브메뉴
검색
Cyber Threat Propagation Modeling in Cyber Physical Systems
Cyber Threat Propagation Modeling in Cyber Physical Systems
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105537
- ISBN
- 9798263392895
- DDC
- 001
- 저자명
- Chen, Yu-Cheng.
- 서명/저자
- Cyber Threat Propagation Modeling in Cyber Physical Systems
- 발행사항
- [Sl] : Georgia Institute of Technology, 2022
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2022
- 형태사항
- 127 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Mooney, Vincent;Grijalva, Santiago.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2022.
- 초록/해제
- 요약Cyber-physical attacks on critical industrial control systems are on the rise. These attacks may target individual field cyber-components or the communications network. In the electricity grid, cyber-physical attacks can modify or affect data or software applications such as state estimator demand response, frequency regulation and voltage control. As a result, a cyber-physical attack on the grid can trigger operators to take inappropriate actions which can lead to instability in the power grid and cascading failures with significant consequences. Hence, to ensure a secure and reliable power grid, it is imperative to study the different ways in which the cyber-physical power grid can be compromised and then develop techniques and mechanisms to detect, evaluate and mitigate the propagation and impact of a potential cyber-physical attack.The objective of the research is to model the propagation of cyber-attack in cyberphysical systems. Note that our research should be applicable to all cyber-physical systems, but we use the electricity grid as the main exemplar for our work. We utilize three models:(a) A model based on Markov principles. The Markov model uses a Markov chain to encapsulate the attacker's strategy and probabilities of success/failure of the attack propagating from one node to the next. Each node in the Markov model represents at least one attacker goal in the cyber-physical system.(b) A game-theoretic probabilistic learning attacker, dynamic defender (PLADD) model [1]. PLADD models ongoing contention between defender and attacker for "ownership" of an access control, where attacker ownership implies the attacker has access and defender ownership implies denied attacker access. The PLADD model leverages game theory similar to FlipIt [2] to analyze defender and attacker interactions.(c) The hybrid attack model [3], which combines both Markov and PLADD model. The hybrid attack model (HAM) is a hybrid of (a) and (b). HAM consists of both PLADD games and Markov nodes. In HAM, an attack is split into preparation and execution stages. In HAM, PLADD games are used to model attacker actions in the preparation stage, and the Markov nodes are used to model attacker actions in the execution stage.Additionally, the hybrid attack model is extended to assess risk in a cyber-physical system. The risk assessment allows cyber-physical system operators to quantitatively determine which area of the cyber-physical system is the most vulnerable and requires a security update. Lastly, sensitivity analysis is done on an example power grid scenario to determine the maximum risk value.
- 일반주제명
- Software
- 일반주제명
- Computers
- 일반주제명
- Failure
- 일반주제명
- Sensitivity analysis
- 일반주제명
- Success
- 일반주제명
- Mathematical models
- 일반주제명
- Electricity distribution
- 일반주제명
- Graph representations
- 일반주제명
- Cybersecurity
- 일반주제명
- Game theory
- 일반주제명
- Communications networks
- 일반주제명
- Probability
- 일반주제명
- Probability distribution
- 일반주제명
- Access control
- 일반주제명
- Markov analysis
- 일반주제명
- Computer science
- 일반주제명
- Electrical engineering
- 일반주제명
- Mathematics
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2022 us c eng d■001000017360499
■00520260202105537
■006m o d
■007cr#unu||||||||
■020 ▼a9798263392895
■035 ▼a(MiAaPQ)AAI32314851
■035 ▼a(MiAaPQ)GeorgiaTech66586
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a001
■1001 ▼aChen, Yu-Cheng.
■24510▼aCyber Threat Propagation Modeling in Cyber Physical Systems
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2022
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2022
■300 ▼a127 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Mooney, Vincent;Grijalva, Santiago.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2022.
■520 ▼aCyber-physical attacks on critical industrial control systems are on the rise. These attacks may target individual field cyber-components or the communications network. In the electricity grid, cyber-physical attacks can modify or affect data or software applications such as state estimator demand response, frequency regulation and voltage control. As a result, a cyber-physical attack on the grid can trigger operators to take inappropriate actions which can lead to instability in the power grid and cascading failures with significant consequences. Hence, to ensure a secure and reliable power grid, it is imperative to study the different ways in which the cyber-physical power grid can be compromised and then develop techniques and mechanisms to detect, evaluate and mitigate the propagation and impact of a potential cyber-physical attack.The objective of the research is to model the propagation of cyber-attack in cyberphysical systems. Note that our research should be applicable to all cyber-physical systems, but we use the electricity grid as the main exemplar for our work. We utilize three models:(a) A model based on Markov principles. The Markov model uses a Markov chain to encapsulate the attacker's strategy and probabilities of success/failure of the attack propagating from one node to the next. Each node in the Markov model represents at least one attacker goal in the cyber-physical system.(b) A game-theoretic probabilistic learning attacker, dynamic defender (PLADD) model [1]. PLADD models ongoing contention between defender and attacker for "ownership" of an access control, where attacker ownership implies the attacker has access and defender ownership implies denied attacker access. The PLADD model leverages game theory similar to FlipIt [2] to analyze defender and attacker interactions.(c) The hybrid attack model [3], which combines both Markov and PLADD model. The hybrid attack model (HAM) is a hybrid of (a) and (b). HAM consists of both PLADD games and Markov nodes. In HAM, an attack is split into preparation and execution stages. In HAM, PLADD games are used to model attacker actions in the preparation stage, and the Markov nodes are used to model attacker actions in the execution stage.Additionally, the hybrid attack model is extended to assess risk in a cyber-physical system. The risk assessment allows cyber-physical system operators to quantitatively determine which area of the cyber-physical system is the most vulnerable and requires a security update. Lastly, sensitivity analysis is done on an example power grid scenario to determine the maximum risk value.
■590 ▼aSchool code: 0078.
■650 4▼aSoftware
■650 4▼aComputers
■650 4▼aFailure
■650 4▼aSensitivity analysis
■650 4▼aSuccess
■650 4▼aMathematical models
■650 4▼aElectricity distribution
■650 4▼aGraph representations
■650 4▼aCybersecurity
■650 4▼aGame theory
■650 4▼aCommunications networks
■650 4▼aProbability
■650 4▼aProbability distribution
■650 4▼aAccess control
■650 4▼aMarkov analysis
■650 4▼aComputer science
■650 4▼aElectrical engineering
■650 4▼aMathematics
■690 ▼a0984
■690 ▼a0544
■690 ▼a0405
■690 ▼a0796
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2022
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360499▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


