EM security analysis of compact ECDSA hardware
Kosuke Koiwa, Daisuke Fujimoto, Yu‐ichi Hayashi, Makoto Nagata, Makoto Ikeda, Tsutomu Matsumoto, Naofumi Homma · 2018
This paper presents an EM analysis for extracting a signature generation key from ECDSA hardware. In particular, we show a possibility of a horizontal side-channel attack using EM waves radiated from compact ECDSA hardware based on Jacobian projective coordinates. We also mention a possible countermeasure against the attack.