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An Approach for Safe and Secure Software Protection Supported by Symbolic Execution

, , , , , and . Database and Expert Systems Applications - DEXA 2023 Workshops, page 67--78. Cham, Springer Nature Switzerland, (2023)

Abstract

We introduce a novel copy-protection method for industrial control software. With our method, a program executes correctly only on its target hardware and behaves differently on other machines. The hardware-software binding is based on Physically Unclonable Functions (PUFs). We use symbolic execution to guarantee the preservation of safety properties if the software is executed on a different machine, or if there is a problem with the PUF response. Moreover, we show that the protection method is also secure against reverse engineering.

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