Most of our communications are protected by Public Private Key technology which has served us well for decades. However this is compromised by Quantum Computers, which are around the corner.
ArQit is fixing the key problem by using Quantum Key Distribution. This uses the quantum properties of photons to create unique keys that can be shared between two parties in laser transmissions from a satellite. This is “provably secure”, or unhackable, and will greatly enhance the security of existing symmetrical algorithms to guarantee secure communications. It will also boost the strength of some Post Quantum Algorithms for a variety of applications.