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Mathematician warns NSA may be weakening next-gen encryption
(www.newscientist.com)
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this post was submitted on 19 Oct 2023
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True encryption does exist, it's just that the encryption key is equally as long as the message itself which shows how impractical it is: if you have a method secure enough to send an encryption key of length X, why not just send the actual message of length X?
That's interesting. I've never heard that before. Do you have more information I can read about somewhere?
https://en.m.wikipedia.org/wiki/One-time_pad
Is that what they're talking about?
Yes
But one-time pads aren't impractical like they said?
One-time pads are impractical because the sender and the target need to meet up beforehand and agree on a code, and no one else should know this code. With modern encryption, this is not necessary. The target can come up with both the encryption and decryption algorithms, and send only the first to the sender publicly.