A majority voter for intrusion tolerant software based on N-version programming techniques

Aghajani, Zahra; Azgomi, Mohammad Abdollahi

doi:10.1109/iit.2009.5413780

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…According to the type of voting, the voter can be exact or inexact. The exact voter compares the inputs, and they must be equal to be considered as correct if one input is distinct not matter the difference the input is marked as incorrect . On the contrary, the inexact voting has a threshold at which the input can vary, this means if an input is distinct but the difference is lower than the specified threshold, the input is marked as correct and is used to generate the output.…”

Section: State Of the Artmentioning

confidence: 99%

Coexistence of safety and security: Synchronized redundant system with security enhancements

Valdivia

Adin

Añorga

et al. 2018

Quality & Reliability Eng

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A malicious attack on a safety‐critical system can derive in an undesired behavior of the system that may result in a failure. In this case, the reliability of the device is decreased, and it might affect directly to safety. Therefore, the security is also an essential issue to consider in the design of safety‐critical systems. The main problem when safety and security are considered is to make them work together without interfering each other. A safety‐critical device needs to be certified following standards like IEC‐61508, and any security mechanisms must not affect this certification. This paper describes a system that integrates safety and security mechanisms to improve reliability without affecting safety certification. With the aim of reaching the required safety level, a redundant system is considered. This system is an n out of m distributed and synchronized voter. The synchronization method is based on the precision time protocol (IEEE‐1588) allowing that all devices on a local network have the same time.

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Section: State Of the Artmentioning

confidence: 99%

Coexistence of safety and security: Synchronized redundant system with security enhancements

Valdivia

Adin

Añorga

et al. 2018

Quality & Reliability Eng

View full text Add to dashboard Cite

show abstract

“…If the output value doesn't match the previously obtained one, a new class is created, if the value matches the existing class [6][7], then this class weight will be recalculated as version class class total…”

Section: Software Implementation Of the Simulation Environmentmentioning

confidence: 99%

Model implementation of the simulation environment of voting algorithms, as a dynamic system for increasing the reliability of the control complex of autonomous unmanned objects

et al. 2017

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Abstract. In the article the question of application of redundant schemes for the development of faulttolerant software, in particular multiversion programming, is considered with reference to the task increasing the reliability of the control complex of autonomous unmanned objects. Modifications of the basic voting algorithms by an agreed majority and its fuzzy version are proposed. The software implementation of the simulation environment that implements the described approach and the proposed modified algorithms is considered. The results of the simulation the dependence of the reliability indicators of the system on its input parameters are shown by authors.

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A majority voter for intrusion tolerant software based on N-version programming techniques

Cited by 2 publications

References 9 publications

Coexistence of safety and security: Synchronized redundant system with security enhancements

Coexistence of safety and security: Synchronized redundant system with security enhancements

Model implementation of the simulation environment of voting algorithms, as a dynamic system for increasing the reliability of the control complex of autonomous unmanned objects

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