Shivam Bhasin

On Comparing Side-channel Properties of AES and ChaCha20 on Microcontrollers

2018

Side-channel attacks are a real threat to many secure systems. In this paper, we consider two ciphers used in the automotive industry - AES and ChaCha20 and we evaluate their resistance against side-channel attacks. In …

Fiddling the Twiddle Constants - Fault Injection Analysis of the Number Theoretic Transform

2023 · IACR Transactions on Cryptographic Hardware and Embedded Systems

In this work, we present the first fault injection analysis of the Number Theoretic Transform (NTT). The NTT is an integral computation unit, widely used for polynomial multiplication in several structured lattice-based key encapsulation mechanisms …