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    Wyświetlanie 1-4 z 4
    Tytuł:
    Current issue of functional safety and cybersecurity analysis of industrial and critical infrastructures
    Autorzy:
    Śliwiński, Marcin
    Kosmowski, Kazimierz, T.
    Piesik, Emilian
    Powiązania:
    https://bibliotekanauki.pl/articles/1955259.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Gdańska
    Tematy:
    cybersecurity
    functional safety
    safety integrity level
    security level
    evaluation assurance level
    industrial control system
    safety instrumented system
    Opis:
    This article addresses some functional safety assessment procedures with cybersecurity aspects in critical industrial installations with regard to the functional safety requirements specified in standards IEC 61508 and IEC 61511. The functional safety management includes hazard identification, risk analysis and assessment, specification of overall safety requirements and definition of safety functions. Based on the risk assessment results, the safety integrity level (SIL) is determined for consecutive safety functions. These functions are implemented within the industrial control system (ICS) and/or the distributed control system (DCS) that consists of the basic process control system (BPCS) and/or the safety instrumented system (SIS). The determination of the required SIL related to the required risk mitigation is based on the semi-quantitative evaluation method. Verification of the SIL for the considered architectures o fthe BPCS and/or the SIS is supported by probabilistic models with appropriate data and model parameters including cybersecurity related aspects. The proposed approach is illustrated on the example of critical industrial installations.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2019, 23, 2; 209-232
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Security aspects in functional safety analysis
    Autorzy:
    Barnert, T.
    Kosmowski, K. T.
    Piesik, E.
    Śliwiński, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2069339.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    functional safety
    security
    safety integrity level
    SIL
    evaluation assurance level
    EAL
    security assurance level
    SAL
    risk assessment
    risk graphs
    programmable control
    protection systems
    Opis:
    A security level of distributed control and protection system may have a significant impact on the results of functional safety analysis. However, the issue of integrating the safety and security aspects is difficult and usually is neglected during the functional safety analysis. This article presents a method of functional safety analysis which takes into consideration a concept of integrating these two aspects. It is based on proposed classification of communication channels used in the computer system / network and the scope of such system distribution. The functional safety analysis is to be performed at every stage of system lifecycle, but one of the most important parts is defining required safety functions and determining the safety integrity level for them. The integration concept might be taken into account at this stage. The basis of a method proposed is the assumption that the security level is considered as a risk parameter in graphs of functional safety analyses.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2014, 5, 1; 1--8
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Current challenges and methodological issues of functional safety and security management in hazardous technical systems
    Autorzy:
    Kosmowski, K. T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2069420.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    functional safety
    safety integrity level
    SIL
    information security
    evaluation assurance leve
    EAL
    Opis:
    The aim of this article is to identify problems of the risk assessment of the electric / electronic / programmable electronic (E/E/PE) systems concentrating on the functional safety and security aspects. These aspects should be considered in an integrated way in the system life cycle. The role of functional safety solutions is effective reducing the risk from unacceptable level. The risk is defined as a combination of the probability of occurrence of harm and the severity of that harm. Security is concerned with the protection of assets including the E/E/PE systems or safety instrumented systems (SISs) from potential threats including cyber attacks. This article deals with current challenges and methodological issues of integrating the functional safety and security aspects of the programmable systems’ operation for the control and protection of hazardous industrial systems.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2012, 3, 1; 39--52
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Framework for RIDM within functional safety management process
    Autorzy:
    Barnert, T.
    Kosmowski, K.
    Śliwiński, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2069134.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    functional safety
    functional safety management
    FSM
    safety integrity level
    SIL
    risk informed decision making
    RIDM
    safety
    security
    uncertainty
    Opis:
    The functional safety management in life cycle is a complex process starting with identifying hazards and defining safety-related functions (SRFs) with regard to the results of risk assessment oriented at determining the safety integrity level of consecutive functions. Another element of such process is a verification of required SIL for considered architectures of safety-related system that implements given safety function. Due to complexity of the problem, to overcome difficulties in safety-related decision making often under considerable uncertainties, usually without taking into account security aspects, we propose to apply the RIDM methodology oriented on functional safety management of programmable control and protection systems in life cycle taking into some more important risk-related factors identified.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2012, 3, 2; 217--226
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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