Significance of key distribution using quantum cryptography

Title

Significance of key distribution using quantum cryptography

Creator

Padmavathi V.; Vardhan B.V.; Krishna A.V.N.

Description

The main challenge to the cryptosystems is providing secrecy in distributing key. This challenge is explained through key distribution problem. The key distribution in classical cryptosystems is based on classical information or bits. As bits can be replicable, there will be scope for an eavesdropper to make copies of information. The classical key distribution methods rely on computational assumptions which are not potential to offer anticipated results. Consequently, it is solved using laws of quantum mechanics, and the solution is Quantum Key Distribution (QKD). In QKD, the bits are encoded into quantum states or qubits using photon polarization. The qubits cannot be replicated as per the laws of quantum mechanics. An attempt to replication will introduce errors. Thus an eavesdropping will inevitably lead to detectable traces and then the legitimate entities will decide upon discarding a particular qubit. BB84 protocol is the first QKD protocol evolved in 1984. This paper notifies the significance of QKD over key distribution performed using classical methods. It is evidently shown that the time taken to distribute a secret key through BB84 QKD protocol is comparatively less than the classical methods of key distribution. 2018 ICIC International.

Source

International Journal of Innovative Computing, Information and Control, Vol-14, No. 1, pp. 371-377.

Date

2018-01-01

Publisher

ICIC International

Subject

Classical key distribution; Photon polarization; QKD; Quantum cryptography; Quantum key distribution; Quantum mechanics; Qubits

Coverage

Padmavathi V., Department of Computer Science and Engineering, Sreenidhi Institute of Science and Technology, Ghatkesar, Yamnampet, Hyderabad, 501301, Telangana, India; Vardhan B.V., Department of Computer Science and Engineering, JNTUH College of Engineering, Jagitial, Karimnagar, 505327, Telangana, India; Krishna A.V.N., Department of Computer Science and Engineering, Christ University, Hosur Road, Bengaluru, 560029, Karnataka, India

Rights

Restricted Access

Relation

ISSN: 13494198

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.24507/ijicic.14.01.371

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