Modern technologies have made cutting-edge breakthroughs in the domains of safety, security, privacy and confidentiality aspects of mobile devices such that increased use of technology of Quantum Cryptography using Quantum Key Distribution as ultra-high security strategy have been advocated by promoters and marketers of this security system for mobile devices. Indeed the need for gaining and enforcing secure mobile communications underpin societal needs with robust security offerings are now most in demand in society and business settings. This is most necessary to gain cover and security from online frauds, attacks, threats and attacks.
Moreover, it is also necessary to infer that QC is very much in its infancy in modern times with its implementation and enforcement mainly confined to bulky, expensive, highly physically tethered server rooms in banks and other financial institutions which, by virtue of being custodians of valuable public funds, resources and assets, need highest degree of secure, safe and protected environments. The usage of QC in the domains of mobile devices is indeed of recent innovations based on research conducted by researchers in University of Bristol, who have successfully demonstrated use of this technology by cutting down the bulky, costly resources reduced to the extent of just using a chip into a hand held mobile device. Simply speaking, QC employs single particles of light (photons) as data couriers and scheme is dependent on IQC (integrated quantum circuit) or chip that is crucial for adoption of secure quantum communication networking, which could lead to making of mobile devices.
Before entering into detailed aspects of QC in the domains of QKD it is necessary to understand how QKD operates. In a typical example as shown below, it is evidenced that sender generates random stream of classical bits and encodes them into sequence of non orthogonal quantum state of light over the quantum channel. Next, the recipient performs certain calculations which enable him to share some data with sender’s bit stream upon gaining of these quantum states. Next, channels check these correlations and presence of high correlations is enough to suggest that no major eavesdropping has taken place and the evidence of highly secure communication is evident.
Coming to the realms of getting QC using QKD into mobile devices have been tried and tested by researchers in the Centre under the aegis of University of Bristol for Quantum Photonics in collaboration with Nokia. This experiment considered client-server quantum key distribution scheme under which lasers and detectors are situate on server side, accessible via telecom fibre networks to client needing only on-chip polarization rotator, fixed on mobile devices. The outcomes of research seem to be optimistic about increased usage of quantum enhanced secure communications between Companies and Members of public community equipped with mobile devices that could offer telecom-fiber tethering.
With major breakthrough technology designing to delink QC in QKD from heavy, onerous and bulky tethered servers into the realms of mobile technology, the floodgates have opened to make optimum and greater use of Quantum Cryptography security for mobile technology in most appropriate, convenient and user friendly manner, after due consideration and remedial actions for the threats and challenges of QC also.
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