CHIMERA: Cryptographic Hardware for Integrated Multipurpose Engine on RISC-V with ASCON
2026-06-09 , Poster Island B

As the NIST Lightweight Cryptography (LWC) standard, ASCON is pivotal for securing IoT ecosystems. This work presents CHIMERA, a multipurpose cryptographic engine for RISC-V, supporting AEAD and Hashing. We propose two architectural paradigms integrated via the Core-V eXtension Interface (CV-X-IF): a high-performance Complete Round (CR) version utilizing a state-register bank, and a minimalist Bitwise Rotation Unit (BRU) version focusing on Instruction Set Extensions (ISE). Our designs suit throughput-critical workloads, delivering up to 6x speed-up, as well as footprint-constrained deployments on ASIC and FPGA.

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Valeria Piscopo received the B.Sc. and M.Sc. degrees in Electronic Engineering from Politecnico di Torino, in 2021 and 2024 respectively. Since November 2024, she is a Ph.D student in Electrical, Electronic and Communications Engineering at Politecnico di Torino. Her research activity is centered on the design of secure hardware accelerators for Post-Quantum Cryptography and their integration in RISC-V ecosystems.

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Ph.D. researcher in Electrical/Electronic Engineering with strong organizational skills and high motivation. Experienced in hardware/software co-design for embedded systems, including RISC-V SoC integration, custom accelerator interfaces, RTL development (SystemVerilog), FPGA prototyping, and embedded C. Solid background in Post-Quantum Cryptography implementations and optimization, with a performance-driven mindset and enthusiasm for new technical challenges.

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