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A review of lightweight block ciphers

Chatzivasilis Georgios, Fysarakis Konstantinos, Papaefstathiou Ioannis, Manifavas Charalabos

Πλήρης Εγγραφή

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Περίληψη

Embedded systems are deployed in various domains, including industrial installations, critical and nomadic environments, private spaces and public infrastructures. Their operation typically involves access, storage and communication of sensitive and/or critical information that requires protection, making the security of their resources and services an imperative design concern. The demand for applicable cryptographic components is therefore strong and growing. However, the limited resources of these devices, in conjunction with the ever-present need for smaller size and lower production costs, hinder the deployment of secure algorithms typically found in other environments and necessitate the adoption of lightweight alternatives. This paper provides a survey of lightweight cryptographic algorithms, presenting recent advances in the field and identifying opportunities for future research. More specifically, we examine lightweight implementations of symmetric-key block ciphers in hardware and software architectures. We evaluate 52 block ciphers and 360 implementations based on their security, performance and cost, classifying them with regard to their applicability to different types of embedded devices and referring to the most important cryptanalysis pertaining to these ciphers.

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