Yang Li, Ryota Hatano, Sho Tada, Kohei Matsuda, Noriyuki Miura, Takeshi Sugawara, and Kazuo Sakiyama, “Side-Channel Leakage of Alarm Signal for a Bulk-Current-Based Laser Sensor,” In Proc. International Conference on Information Security and Cryptology (Inscrypt’19), LNCS 12020, Springer-Verlag, pp.346–361 (Dec., 2019).