TY - GEN
T1 - A local EM-analysis attack resistant cryptographic engine with fully-digital oscillator-based tamper-access sensor
AU - Miura, Noriyuki
AU - Fujimoto, Daisuke
AU - Tanaka, Daichi
AU - Hayashi, Yu-Ichi
AU - Homma, Naofumi
AU - Aoki, Takafumi
AU - Nagata, Makoto
PY - 2014
Y1 - 2014
N2 - A cryptographic engine (CE) resistant to local EM-analysis attacks (L-EMAs) is developed. An LC-oscillator-based tamper-access sensor detects a micro EM-probe approach and therefore protects the secret key information. A fully-digital sensor circuit with a reference-free dual-coil sensing scheme and a ring-oscillator-based one-step digital sensor calibration reduces the sensor area overhead to 1.6%. The sensor intermittently operates in interleave between CE operations, which saves power and performance penalty to 7.6% and 0.2%. A prototype in 0.18μm CMOS successfully demonstrates L-EMA attack detection and key protection for the first time.
AB - A cryptographic engine (CE) resistant to local EM-analysis attacks (L-EMAs) is developed. An LC-oscillator-based tamper-access sensor detects a micro EM-probe approach and therefore protects the secret key information. A fully-digital sensor circuit with a reference-free dual-coil sensing scheme and a ring-oscillator-based one-step digital sensor calibration reduces the sensor area overhead to 1.6%. The sensor intermittently operates in interleave between CE operations, which saves power and performance penalty to 7.6% and 0.2%. A prototype in 0.18μm CMOS successfully demonstrates L-EMA attack detection and key protection for the first time.
UR - http://www.scopus.com/inward/record.url?scp=84905650349&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84905650349&partnerID=8YFLogxK
U2 - 10.1109/VLSIC.2014.6858423
DO - 10.1109/VLSIC.2014.6858423
M3 - Conference contribution
AN - SCOPUS:84905650349
SN - 9781479933273
T3 - IEEE Symposium on VLSI Circuits, Digest of Technical Papers
BT - 2014 Symposium on VLSI Circuits, VLSIC 2014 - Digest of Technical Papers
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 28th IEEE Symposium on VLSI Circuits, VLSIC 2014
Y2 - 10 June 2014 through 13 June 2014
ER -