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physically unclonable function (PUF)

In networked systems, attacks against cybersecurity can be carried out via critical infrastructure components. Corresponding components can be found in all industrial, utility or medical facilities. To avoid such attacks on processors, Physically Unclonable Functions (PUF) is a security mechanism for the unique identification of integrated circuits

(IC). The Internet of Things (IoT) provides many points of attack through which attackers can gain access to sensitive data or systems. Industrial systems, their sensors and actuators, systems of utility companies, hospitals, traffic infrastructures and building automation are particularly at risk of attack. These must be protected in particular. For some of the applications mentioned, relevant series of standards for cybersecurity have already been developed. For example, IEC standard 62443 for cybersecurity in industrial automation or ISO standard 21434 for automotive technology

. The PUF function, which is intended to prevent attacks on active components, is functionally comparable to a unique fingerprint of an integrated circuit. It establishes a relationship between several input and output values.

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Englisch: physically unclonable function - PUF
Updated at: 11.09.2020
#Words: 193
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Translations: DE