Comment Re:Quamtum Computing (Score 1) 492
With quantum computing, it's only public-key cryptography which falls apart. The AES system, which is a block cipher scheme, would still work fine - provided the number of possible keys are squared.
Quantum computing has a squareroot effect. So, if it takes some computer time T to break AES, it'll take the quantum computer sqrt(T) time.
So all we have to do is increase our key lengths.
For example, to get security comparable to 128-bit security today, we'd have to increase the key length from 128-bit to 256-bit.
Quantum computing has a squareroot effect. So, if it takes some computer time T to break AES, it'll take the quantum computer sqrt(T) time.
So all we have to do is increase our key lengths.
For example, to get security comparable to 128-bit security today, we'd have to increase the key length from 128-bit to 256-bit.
