Quantum Internet's Unhackable Promise: QKD Gains Traction, Flaws Persist
Quantum key distribution offers theoretically secure communication, but real-world implementations still have vulnerabilities. China and Europe are already building such networks, yet a fully unhackable internet remains distant.
While blockchains can be fortified with post-quantum cryptography, the physical layer of data transmission demands a different shield. Quantum key distribution (QKD) leverages quantum mechanics to detect eavesdropping, promising theoretically unbreakable secure communication.
A new episode of the "Quantum & After" series explores QKD's strengths, persistent weaknesses, and why the vision of an unhackable internet is still more promise than product. China and Europe are actively building QKD networks, but practical gaps remain.
Earlier installments examined whether one can profit from quantum technologies and how blockchains are preparing for the quantum era.
Source: ForkLog