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by AnthonyMouse
4377 days ago
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> Totally anonymous (ie no metadata trail) communication seems impossible / impractical. If everywhere is the Tor then we massively increase traffic That really isn't the problem. If onion routing works for anything it works for email. Text is low bandwidth. You make the email servers relay for each other so it scales: More email servers, more relays. And if you're willing to have your emails delayed by e.g. half an hour you can get a much stronger level of anonymity than you can with realtime systems like Tor because random delays between hops on high traffic nodes in combination with padding to power-of-two size boundaries makes traffic analysis extremely difficult. > Anyway, even if a encrypted anonymous message arrives for me, just working out who it's from without any metadata seems complex web of double decryption Every message to you should be encrypted against your public key, so you decrypt it with your private key and immediately learn who it's from. The issue is if you have multiple public keys and you don't want the message to identify which one to use in any way. There could be some interesting cryptographic solutions to that I'm not aware of, although in the worst case you could just try all of them until one works. |
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I went off on one thinking how do I find which public key Of my 4000 contacts is the right one ... When no-one will encrypt a secret message with their own private key !
Sorry - total brain fart. Apologies to others down thread too.