On Fri, 15 Feb 2019 at 14:59, Paul Koning <paulkon...@comcast.net> wrote: > > Speaking of sounds made by machines, there is a famous security paper from a > few years ago in which researchers read the encryption keys out of > smartphones by listening to the sounds made by the device while it was > execution the crypto algorithms.
... wow. > These hardware wizard stories remind me of a legendary repair wizard, > non-computer industrial devices I think. He was called in to fix a tricky > problem at the customer site. Studied it for a while, took out a small > hammer, whacked the device at some spot, and reported "fixed". He then sent > in a bill for $500. > > Customer challenged that with a demand to itemize the work. The itemized > bill came back like this: > > 1. Applying impact to the device: $5 > 2. Knowing where and how to apply the impact: $495 110 years old, and still apt. https://quoteinvestigator.com/2017/03/06/tap/ I first encountered it in the form of one of the AI Koans. I guess these are probably familiar to all here, but in case: http://people.cs.uchicago.edu/~wiseman/humor/ai-koans.html -- Liam Proven - Profile: https://about.me/liamproven Email: lpro...@cix.co.uk - Google Mail/Hangouts/Plus: lpro...@gmail.com Twitter/Facebook/Flickr: lproven - Skype/LinkedIn: liamproven UK: +44 7939-087884 - ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053
