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You can use KDFs based on passwords, shared phrases, etc even if they are just a shared secret in a DH exchange. I made a thing a while back (https://myscreen.l
by kodablah 7y ago
You can use KDFs based on passwords, shared phrases, etc even if they are just a shared secret in a DH exchange. I made a thing a while back (https://myscreen.live/ https://myscreen.live/) that did a common-phrase that was in a URL fragment which gives pretty good entropy (granted it's only for encrypting signalling).