Quantum Resistance and the Signal Protocol
Quantum Resistance and the Signal Protocol
signal.org
Quantum Resistance and the Signal Protocol
'Today we are happy to announce the first step in advancing quantum resistance for the Signal Protocol: an upgrade to the X3DH specification which we are calling PQXDH. With this upgrade, we are adding a layer of protection against the threat of a quantum computer being built in the future that is powerful enough to break current encryption standards.'
I'm not a cryptography expert, or even a security expert, or even more than middling proficient with computers. Could someone with actual skill in this field read this and pipe in with an opinion on if this is actually sufficient to start with or just a layer of false security?
Not an expert, but what i read here is that they will be using 2 locks. e.g. one traditional key based lock and another fingerprint based lock, and when you need to open the door, you need to open both the locks.
But does that actually give decent protection against quantum decryption?
I don't actually expect you to answer that question, it's pretty pertinent though.
Just for a point of reference, Moxie Marlinspike was probably one of the biggest names in breaking encryption standards before he started Signal.
And as a lifelong anarchist, the sort of person who designs a protocol with the NSA as the imagined adversary.
If you were going to put faith in an individual regarding crypto choices, I'm not sure there's anyone else I'd recommend moreso.