Breaking ECDSA with Electromagnetic Side-Channel Attacks: Challenges and Practicality on Modern Smartphones. - Felix Oberhansl; Marc Schink; Nisha Jacob Kabakci; Michael Gruber; Dominik Klein 001; Sven Freud; Tobias Damm; Michael Hartmeier; Ivan Gavrilan; Silvan Streit; Jonas Stappenbeck; Andreas Zankl (CoRR, 2025)