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You probably know what I was getting at. Public-key crypto is very important in today's world. If we can't use the current system, we need something to replace
by anoncowherd 13y ago
You probably know what I was getting at. Public-key crypto is very important in today's world. If we can't use the current system, we need something to replace it. Pre-shared keys is for a different scenario.
- tptacek 13y agoYou are missing both Schneier's point and mine. The point is that if you can contrive of a way to (perhaps inconveniently) pre-share static keys, you should consider doing that instead of relying on number theory to protect your secrets.
- glurgh 13y agoNerdnit, but it's not like AES is based on some wholesome certified organic granola theory to the exclusion of number theory. Number theory didn't wait around 2+ millennia to be useful only to be dissed like that, man!
- lacksconfidence 13y agoand you are conveniently missing his point. If we were to throw away public key technology today and say 'Only pre-shared keys' some significant portion of the internet would simply be unencrypted. What do we do about that?
- anoncowherd 13y ago> The point is that if you can contrive of a way to (perhaps inconveniently) pre-share static keys, you should consider doing that instead of relying on number theory to protect your secrets. No I got that just fine. As you know, I'm suggesting that not using public-key crypto or something else for the same purpose is impractical.