This reminds me of: In the 90s I rememebr hearing a story about someone hacking a supposedly 'impossible' remote machine for a competition - they did it by anal

This reminds me of: In the 90s I rememebr hearing a story about someone hacking a supposedly 'impossible' remote machine for a competition - they did it by analysing the response times and using that info to derive the key - at the time, a novel approach. Can anyone remember the story I must be dimly remembering?