Study of “Quantum Cryptography” for Telecom Fiber Optic Cable Network

With the growth of computer networks for business transactions and communication of confidential information there is an ever increasing need for encryption to ensure that this information cannot be acquired by third parties. Remarkably, the seemingly unrelated philosophical foundations of quantum mechanics are now being brought to bear directly on the problem of communications security in the potentially practical emerging technology of quantum cryptography. In this paper we shall review the theory of quantum cryptography, its potential applications and its use in optical fiber cable networks. Keyword—Cryptography, Quantum Mechanics, QKD, Fiber optic.