Double-Sided Multimodal Attack Sensing and Partial Re-Keying in Shared Group Key System
Ryuki Ikemoto, Soichiro Fujii, Kotaro Naruse, Jun Shiomi, Yoshihiro Midoh, Yuki Yamashita, Misato Taguchi, Takuji Miki, Makoto Nagata, Yuichi Komano, Mitsugu Iwamoto, Kazuo Sakiyama, Noriyuki Miura · 2024
This paper presents an integrated sense-and-react countermeasure for a Shared Group Key (SGK) system. 1) A set of fully CMOS-compatible integrated sensors detects multimodal physical attacks exploiting direct-probing, side-channel, and laser-injection from both front- and back-side of a silicon chip. 2) Upon the attack detection, the system immediately updates SGK based on the detailed attack information obtained by the sensor for reactive SGK protection. Prototype test-chip measurements successfully demonstrate the double-sided multimodal attack detection and counter-reaction capability with small hardware overhead for future resource-constrained information systems.