New design sets a high standard for post-quantum readiness.
Having in mind we are not even close to breaking classical cryptography with quantum computing I doubt this was their best investment of time
Once quantum computers break classical cryptography, it’s going to be too late to develop post-quantum cryptography, mate.
The best time to develop resilience is right now.
It’s not going to happen this century, probably never
Even if quantum computing turns out to actually be infeasible and classical cryptography is secure for the next millennia, it’s still a good feature to have a third independent encryption layer in the protocol. It makes it that much less likely reliant on the other two being bulletproof.
Maybe. I don’t know at which point all that extra processing stops being worth it.
How sure are you? Assign a percentage chance to it and the cost of exposing old messages, and compare that to the cost of this dev effort.
We know governments are using it, and there’s likely a lot of sensitive data transmitted through Signal, so the cost of it happening in the next 20 years would still be substantial, so even if the chance of that timeline happening is small, there’s still value in investing in forward secrecy.
They also want nuclear fusion reactors and there is none in the horizon after 50 years of research and development (even though many want to sell the idea that there are).
You can start preparing for post hypercomputation cryptography too if you believe your argument.
There’s hardly ever glory in prevention…
There are nation states just straight up intercepting and storing signal data on their networks in hopes that it can be decrypted in the future. 20 year old messages will still be useful.
Lol, it shows the hype quantum computing has sold and how detached the public thought is about it from reality.
I’m friends with two quantum computing researchers and they are pretty sure quantum computing will never be a practical application because of how the noise and errors scale with the system size.
I doubt that the first ones to break it will be eager to communicate their findings to the public.
This tech is far to valuable for military/spionage goals. For all we know it already exists.
