Quantum Cryptography and its Physical Implementation: A Research Review

This review contains historical importance of cryptography, switch from the classical crytopgraphic techniques to quantum cryptography including the examples of Quantum key distribution in Eckert, BB84 and B92 protocols, use of 4 and 6 state photon orientations to increase the security measure and decrease the Eave's dropping probability, The efforts and research that we have made for this review taught us so many aspects, features that we have never done before. Naveed Qureshi, Sairah Syed.