Quantum Cryptography using Quantum Key Distribution and its Applications
1N.Sasirekha, Department of Information Technology and Computer Technology, Rathinam College of Arts and Science, Coimbatore, (Tamil Nadu), India.
2M. Hemalatha, Department of Computer Science, Karpagam University, Coimbatore, (Tamil Nadu), India.
Manuscript received on March 26, 2014. | Revised Manuscript received on April 12, 2014. | Manuscript published on April 30, 2014. | PP: 289-294 | Volume-3, Issue-4, April 2014. | Retrieval Number: D2988043414/2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Secure transmission of message between the sender and receiver is carried out through a tool called as cryptography. Traditional cryptographical methods use either public key which is known to everyone or on the private key. In either case the eavesdroppers are able to detect the key and hence find the message transmitted without the knowledge of the sender and receiver. Quantum cryptography is a special form of cryptography which uses the Quantum mechanics to ensure unconditional security towards the transmitted message. Quantum cryptography uses the distribution of random binary key known as the Quantum Key Distribution (QKD) and hence enables the communicating parties to detect the presence of potential eavesdropper. This paper also analyses few application areas of quantum cryptography and its limitations.
Keywords: Classical Cryptography, Photon polarization, Qubit, Quantum Cryptography, Quantum entanglement, Quantum Key Distribution, Sifting key.