Key distribution in PKC through Quantas

Cryptography literally means “The art & science of secret writing & sending a messagebetween two parties in such a way that its contents cannot be understood by someoneother than the intended recipient.” and Quantum word is related with “Light”. Thus,Quantum Cryptography is a way of descripting any information in the form of quantumparticles. There are no classical cryptographic systems which are perfectly secure. Incontrast to Classical cryptography which depends upon Mathematics, QuantumCryptography utilizes the concepts of Quantum Physics which provides us the securityagainst the cleverest marauders of the present age. In the view of increasing need ofNetwork and Information Security, we do require methods to overcome the MolecularComputing technologies (A future technology) and other techniques of the variouscodebrakers. Both the parts i.e. Quantum Key distribution and Information transferencefrom Sender to Receiver are much efficient and secure. It is based upon BB84 protocol. Itcan be of great use for Govt. agencies such as Banks, Insurance, Brokerages firms,financial institutions, e-commerce and most important is the Defense & security of anycountry. It is a Cryptographic communication system in which the original users candetect unauthorized eavesdropper and in addition it gives a guarantee of noeavesdropping. It proves to be the ultra secure mode of communication b/w two intendedparties.