[Cryptography] Anonymous rendezvous (was Business opportunities in crypto)

[Sid Spry]

On Thu, Apr 15, 2021, at 1:33 PM, Jerry Leichter wrote:
> 
> Look, we all know how this kind of thing works in practice; we've done 
> it forever, without any cryptography.  The reason I bring this up is 
> the long-standing false claim that public-key cryptography allows two 
> parties who've never interacted previously to talk securely to each 
> other, without any other parties being involved.  But it doesn't work 
> like that - it *can't* work like that - in any meaningful sense.
> 

It can, with caveat. Pick two: decentralized, secure, easy to use/memorize/convey.
If it's decentralized and secure you end up with cryptographic IDs like onion addresses.
If it's secure and easy to use you have a DNS-like system.

The above two-of-three is basically this entire discussion.