For the specific case of acoustic signals, see https://www.tau.ac.il/~tromer/acoustic/ https://www.tau.ac.il/~tromer/acoustic/. For "CPU voltage fuzzing", Googl

For the specific case of acoustic signals, see https://www.tau.ac.il/~tromer/acoustic/ https://www.tau.ac.il/~tromer/acoustic/. For "CPU voltage fuzzing", Google "glitch attack" (e.g. https://wiki.newae.com/Tutorial_A2_Introduction_to_Glitch_Attacks_(including_Glitch_Explorer) https://wiki.newae.com/Tutorial_A2_Introduction_to_Glitch_At... ) or, more generally, "fault attacks". The relevant academic community can be found around https://ches.iacr.org/2018/program.shtml https://ches.iacr.org/2018/program.shtml. (I work for a company building high-assurance crypto appliances for the Dutch government, so I have a professional interest.)