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If you're interested, the Quantum Key Distribution [0] sub-field has already likely bore fruit that is a "ready in the medium-term" useful solution to a real pr
by j1vms 10y ago
If you're interested, the Quantum Key Distribution [0] sub-field has already likely bore fruit that is a "ready in the medium-term" useful solution to a real problem. It's probably already deployed somewhere in the national security/defense space.
[0] https://en.wikipedia.org/wiki/Quantum_key_distribution https://en.wikipedia.org/wiki/Quantum_key_distribution
- baobrien 10y agoDJB is still skeptical of Quantum Key Distribution. https://sidechannels.cr.yp.to/qkd/holographic-20160326.pdf https://sidechannels.cr.yp.to/qkd/holographic-20160326.pdf
- hannob 10y agoWhich 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.