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Hexagon profile picture
Reminds me of tower hard-drives with data transfer lights that (it turned out) echoed the data… hackable from across the street. 🤦‍♂️ … or passwords from watching your accelerometer. Obs this is even more crazy!
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Wait what? They can guess the whole key just from how many leading zeroes are in the nonce? Doesn't that mean the nonce isn't very good?
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it may assume attacker is also at "the other end" of some encrypted traffic - trivial in many contexts – & thus knows (or supplies?) the nonces, as part of typical ops not usually considered a private-key threat
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