Cute-Lock: Behavioral and Structural Multi-Key Logic Locking Using Time Base Keys

• URL: http://arxiv.org/abs/2501.17402v1
• Date: Wed, 29 Jan 2025 03:44:55 GMT
• Title: Cute-Lock: Behavioral and Structural Multi-Key Logic Locking Using Time Base Keys
• Authors: Kevin Lopez, Amin Rezaei,
• Abstract summary: We propose, implement and evaluate a family of secure multi-key logic locking algorithms called Cute-Lock. Our experimental results under a diverse range of attacks confirm that, compared to vulnerable state-of-the-art methods, employing the Cute-Lock family drives attacking attempts to a dead end without additional overhead.
• Score: 1.104960878651584
• License:
• Abstract: The outsourcing of semiconductor manufacturing raises security risks, such as piracy and overproduction of hardware intellectual property. To overcome this challenge, logic locking has emerged to lock a given circuit using additional key bits. While single-key logic locking approaches have demonstrated serious vulnerability to a wide range of attacks, multi-key solutions, if carefully designed, can provide a reliable defense against not only oracle-guided logic attacks, but also removal and dataflow attacks. In this paper, using time base keys, we propose, implement and evaluate a family of secure multi-key logic locking algorithms called Cute-Lock that can be applied both in RTL-level behavioral and netlist-level structural representations of sequential circuits. Our extensive experimental results under a diverse range of attacks confirm that, compared to vulnerable state-of-the-art methods, employing the Cute-Lock family drives attacking attempts to a dead end without additional overhead.

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