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by q4h555qh5 3754 days ago
Maybe it was for a particular implementation? Funny story: the first toy impletementation of Quantum Key Distribution used a device with rotating photon polarizers. Quantum Key Distribution is completely secure so on paper the device was too. However, you could actually hear the polarizers rotating in a way you could intercept the whole secret key... as long as you were not deaf!
1 comments

That's a really good example of a side-channel attack