# A Photon-based Quantum Key Distribution is the Future of Cybersecurity

Yet another amazing feats of quantum physics is about to come outside of the laboratory. Scientist developed a protocol which will bring revolution in Quantum computing. A new photon-based quantum key distribution encryption could bring an advance protection against the cyberthrets.

Research from Duke University increased the speed of quantum key distribution transmission by 5 to 10 times. Up until now, it was only delivering only ten to hundreds of kbps will deliver in gbps rates.

### WHAT IS QUANTUM KEY DISTRIBUTION?

Quantum Key Distribution also known as QKD uses photon (particles of light) in order to in encode quantum bits. These Qubits are transmitted from sender to receiver as an encryption key. Here the transmission channel **don’t** need to be secure. The whole purpose to use QKD is Quantum indeterminacy, which means measuring something encrypted affects its original state. In other words, measuring photon Qubits affects it’s encoding, that means the sender and receiver immediately know the interruption in communication. Any attempts to decode would be instantly spotted and then sender can change the encryption key.

Scientist at Duke University came up with a tricky solution to adjust the time at which the photon was released along with adjusting phase of photon. This cause can hold 1 more bits of information. They also announced that with some engineering they could probably fit the entire transmitter and receiver in a box as big as a computer CPU.

That Quantum Key Distribution would be a perfect encryption, theoretically at least. With this achievement we are one step closer to the Quantum Internet. In future, it might be possible to use regular internet for default and get things done but when one need to transfer the sensitive information we switch to quantum. So we get better speed from the default internet and secure communication from the quantum internet. Maybe in next decade (maybe next to next?) we might get the first glimpse of the Quantum internet on large scale.

Source: Sciencemag