3 ms·
Which problem exactly does QKD solve? (It is used by some banks afaik, but that it's used doesn't mean it solves any problem - it just means someone bought the
by hannob 10y ago
Which problem exactly does QKD solve?
(It is used by some banks afaik, but that it's used doesn't mean it solves any problem - it just means someone bought the marketing claims from ID Quantique and co)
- j1vms 10y agoA quick response (so forgive the brevity): Let's say worst case, that a quantum computer does not currently exist, but its basic logical operation has been fleshed out to a reasonable extent. Now, what if a practical implementation shows up in the 5-10 yr timeline. The issue is that some quantum computers could, in theory, pose a real threat to many currently used classical encryption systems. QKD + one time pad could provide, in theory if not already also in practice, a reasonable stand-in solution to counter this perceived threat.