Mixed-Signal Hardware Security Using MixLock: Demonstration in an Audio Application

Abstract : In this paper, we demonstrate a recently proposed security technique for mixed-signal circuits in the context of a real application. The security technique, called MixLock, is based on logic locking of the digital section of the mixed-signal circuit and can be used as a countermeasure for reverse engineering and counterfeiting. We demonstrate MixLock in an audio application, where the underlying Σ∆ ADC that digitizes the audio input is locked. We show the effect that locking has on the recorded audio quality based on a metric that counts the resultant glitches per second and by also providing a link where the interested reader can download and listen to output audio samples for locked and unlocked versions of the Σ∆ ADC.
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https://hal.archives-ouvertes.fr/hal-02164937
Contributor : Haralampos Stratigopoulos <>
Submitted on : Tuesday, June 25, 2019 - 2:38:34 PM
Last modification on : Wednesday, August 14, 2019 - 10:46:47 AM

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  • HAL Id : hal-02164937, version 1

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Julian Leonhard, Marie-Minerve Louërat, Hassan Aboushady, Ozgur Sinanoglu, Haralampos-G. Stratigopoulos. Mixed-Signal Hardware Security Using MixLock: Demonstration in an Audio Application. International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD), Jul 2019, Laussane, Switzerland. ⟨hal-02164937⟩

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