Quantum Resistance and the Signal Protocol
It is good that they kept the classical crypto along. However, the general tendency towards quantum-resistant cryptography leaves me puzzled. From my perspective as a physics PhD graduate, I firmly believe that a quantum computer capable of breaking public key crypto will never be built. This is because as you add more qubits, there's increased interference between them due to the additional connections required.<p>It's similar to how FM radio works: there's a main frequency and several sidebands. When you adjust the tuner to pick up a station, you're essentially "interacting" with the corresponding station. But if there are too many stations, you may no longer be able to hear the music, and as a result, there would be only a static noise present.<p>This leads me to a somewhat cynical conspiracy. Imagine the moment when a curios government agency realises that building a quantum computer for this purpose is a futile endeavor. Instead of admitting this, they could perpetuate the idea that its construction is just around the corner. Then, act as a wolf in sheep’s skin and introduce everyone to quantum-resistant solutions, which are unfortunate to have secret hidden backdoors by having done more advanced research on them. Has anyone thought about this?