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Comment Re:Key exchange? (Score 1) 986

It's an interesting question. The simple answer is that for most purposes, you probably can exchange a little security for convenience and allow automatic key exchange. As long as there is a more secure option available should one need it, that may be enough as long as expectations are managed. Maybe have emails be indicated as semi-secure unless a public key has been manually verified.

As to verification, it may just need work on some encoding. An MD5 fingerprint is 16 hex pairs. Make each pair represented by a specific picture say and it would be easy to verify over the phone or via a printed picture.

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