Local EM-Analysis Attack Resistant Cryptographic Engine with Fully-Digital Oscillator-Based Tamper-Access Sensor
Local EM-Analysis Attack Resistant Cryptographic Engine with Fully-Digital Oscillator-Based Tamper-Access Sensor
复制标题
具有基于全数字振荡器的篡改访问传感器的本地 EM 分析抗攻击加密引擎
DOI：
10.1109/vlsic.2014.6858423
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Makoto Nagata
中科院分区：
文献类型：
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作者：
Noriyuki Miura;Daisuke Fujimoto;Daichi Tanaka;Yu-ichi Hayashi;Naofumi Homma;Takafumi Aoki;Makoto Nagata
提出了一种抗局部EM分析攻击的密码引擎。基于LC振荡器的篡改访问传感器检测微EM探针方法，从而保护密钥信息。全数字传感器电路采用无参考双线圈检测方案和基于环形振荡器的一步数字传感器校准，可将传感器面积开销降低至1.6%。传感器在CE操作之间间歇性地交替运行，从而将功耗和性能损失节省至7.6%和0.2%。0.18µm CMOS原型首次成功演示了L-EMA攻击检测和密钥保护。
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.