GPU Noise Reveals Websites

Figure changes every 5 seconds (a) msn.com animation Fast changing Counter (b) forbes.com animation Video Component (c) foxnews.com animation (d) msn.com signal (e) forbes.com signal (f) foxnews.com signal (g) msn.com FFT (h) forbes.com FFT (i) foxnews.com FFT Amplitude (dB) Frequency (kHz) Figure 7: Attacker’s signal when victim viewed msn.com, forbes.com and foxnews.com. For spectrograms, the vertical axis is time (40 sec), and the horizontal axis is frequency (0–24 kHz). The bottom figures show, for each website, the FFTs of all recordings in a single plot. We subtracted from the measurement the average value, over all websites, of each bin.

На изображении показана научная иллюстрация атаки по побочным акустическим сигналам: шум микрофона ноутбука позволяет отличить открытые сайты по изменениям сигнала GPU. Шутка в том, что обычный микрофон внезапно превращается в инструмент слежки и может рассказать, что делает компьютер. EN: The image shows a scientific illustration of a side-channel attack: laptop microphone noise can distinguish opened websites through changes in the GPU signal. The joke is that an ordinary microphone suddenly becomes a surveillance tool capable of revealing what a computer is doing.

• @ithueti / 11558 2024-01-17