1. It's just a guess but I don't think many users care about iMessage's encryption. Cryptographers are the exception.
2. XMPP is not true peer-to-peer. If you are a fan of XMPP as a p2p "solution", and you're not the XMPP provider trying to make a buck offering this "service", then I would say you don't know enough about p2p.
3. If you really care about end-to-end cryptography the solutions exist. Working with the nacl library is not rocket science. It's a lot simpler than SSL/TLS. And I don't see any cryptographers cracking nacl anytime soon.
4. Decentralised and open platforms are not really tough if you keep things simple. But for most (but not all) designers of these systems that seems just about impossible. If it's not complex it's not worth their time.
The biggest challenge I see with good, easy cryptography and a decent, simple peer-to-peer platform for the general public is that you will have a huge PR problem from day 1. Because the only folks who will want to use the system will be troublemakers who attract the wrong kind of attention, and a handful of smart people, like cryptographers, who no one pays attention to.
2. XMPP is not true peer-to-peer. If you are a fan of XMPP as a p2p "solution", and you're not the XMPP provider trying to make a buck offering this "service", then I would say you don't know enough about p2p.
3. If you really care about end-to-end cryptography the solutions exist. Working with the nacl library is not rocket science. It's a lot simpler than SSL/TLS. And I don't see any cryptographers cracking nacl anytime soon.
4. Decentralised and open platforms are not really tough if you keep things simple. But for most (but not all) designers of these systems that seems just about impossible. If it's not complex it's not worth their time.
The biggest challenge I see with good, easy cryptography and a decent, simple peer-to-peer platform for the general public is that you will have a huge PR problem from day 1. Because the only folks who will want to use the system will be troublemakers who attract the wrong kind of attention, and a handful of smart people, like cryptographers, who no one pays attention to.