Composable Gadgets with Reused Fresh Masks $-$ First-Order Probing-Secure Hardware Circuits with only 6 Fresh Masks

ePrint Report: Composable Gadgets with Reused Fresh Masks $-$ First-Order Probing-Secure Hardware Circuits with only 6 Fresh Masks

David Knichel, Amir Moradi

Albeit its many benefits, masking cryptographic hardware designs has proven to be a non-trivial and error-prone task, even for experienced engineers. Masked variants of atomic logic gates, like AND or XOR - commonly referred to as gadgets - aim to facilitate the process of masking large circuits by offering free composition while sustaining the overall design's security in …

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