The rush to create the first practical quantum computer has governments and businesses from all around the world engaged in an arms race. The technology promises to make some computing issues significantly simpler to resolve than they would be with today's traditional computers.
One of those issues is the ability to crack specific encryption algorithms, notably those employed in the public key infrastructure (PKI) that powers nearly all of today's internet interactions. Undoubtedly afraid of what quantum cryptography computing might accomplish, and it's also striving to discover solutions to the programming problems that will arise with it.
quantum key distribution also requires special equipment, which is difficult to implement in software or on a network. Furthermore, the security of quantum key distribution cannot be ensured without the presence of trusted relay nodes or satellites. Due to these limitations, QKD cannot be deployed as a service on the Internet or as software, however, instead requires special facilities and dedicated fiber connections.
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