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.
