Time- and Amplitude-Controlled Power Noise Generator against SPA Attacks for FPGA-Based IoT Devices

Power noise generation for masking power traces is a powerful countermeasure against Simple Analysis (SPA), and it has also been used Differential (DPA) or Correlation (CPA) in the case of cryptographic circuits. This technique makes use consumption generators as basic modules, which are usually based on ring oscillators when implemented FPGAs. These modules can be to generate extract digital signatures through side channel Intellectual Property (IP) protection purposes. In this paper, new generator, named Xored High Consuming Module (XHCM), proposed. XHCM improves, compared others proposals literature, amount current per LUT Experimental results show that these achieve increments range from 2.4 mA (with only 16 LUTs Artix-7 devices with density 0.75 mW/LUT using single HCM) 11.1 67 8 XHCMs, 0.83 mW/LUT). Moreover, version controlled by Pulse-Width Modulation (PWM) developed, PWM-XHCM, is, XHCM, suitable watermarking. order build countermeasures SPA attacks, multi-level (ML-XHCM) presented, capable generating different levels minimal area overhead (27 six-input LUTS amplitude devices). Finally, randomized version, RML-XHCM, developed two True Random Number Generators (TRNGs) peaks random amplitudes at times. RML-XHCM requires less than 150 devices. Taking into account characteristics, main contributions have carried out article: first, PWM-XHCM provide an efficient generator extracting channel, other hand, ML-XHCM tools processing units attacks IoT