Diego F. Aranha
Associate Professor
16th April 2025, 5:00PM - 6:00PM (GST)
| Title: | Compact and Masked FAEST |
| Abstract: | We introduce a new compact implementation of the FEASTv1 signature scheme that allows it to run in resource-constrained Cortex-M4 microcontrollers under 190M cycles for signing or verifying at level 1 security. The main technique for reducing the memory footprint is a new abstraction to reuse or recompute VOLEs on demand, which reduces memory consumption by at least an order of magnitude. Based on the compact implementation, we develop a masked version of FAEST aiming at security against first-order attacks, achieving a performance overhead of 1.24x and a memory overhead of 1.92x. We conclude the talk by discussing how the side-channel protections can be ported to FAESTv2 submitted to NIST Round 2. |
| Bio: | Diego F. Aranha is an Associate Professor in the Department of Computer Science at Aarhus University. His professional experience is in Cryptography and Computer Security, with a special interest in the efficient implementation of cryptographic algorithms and security analysis of real-world systems. He received the Google Latin America Research Award for research on privacy twice, and the MIT TechReview's Innovators Under 35 Brazil Award for his work in analyzing and improving the Brazilian electronic voting system. |