A Study on Quantum Cryptography and Its Need

Premjeet Kumar, Yashpal Singh

Dhishan Dhammearatchi

Securing sensitive and important information from intruders is a tedious task in the 21 st century.In order to protect information different ciphering techniques has been used.Quantum Cryptography has taken a new path in the field of crypto systems where all the presently used crypto systems are classified as classical cryptography systems.Classical cryptography systems use mathematical formulas where quantum cryptography uses the principles of photon polarization and heisenberg uncertainty principle.As the south asian region is developing rapidly in almost all the sectorsthe need of securing information has become a difficult task.Therefore, the need of starting extensive research on quantum cryptography for the south asian region to safeguard information from intruders has been the purpose of this study.Comparative study of the growth of the telecommunication sector in the south asian region and how quantum cryptography could assist in securing information has been discussedas results.In the end, details of the need to research on quantum cryptography in the south asian region to overcome future predicted cyber threats are also discussed.

Koji Nagata, Do Ngoc Diep, Tadao Nakamura

We propose quantum cryptography based on an algorithm of determining a function. The security of our cryptography is based on the Ekert 1991 protocol, that is, we use an entangled state. Eve must destroy the entangled state. Consider a function. Alice knows all the mappings concerning the function. Bob knows none of them. His aim is of obtaining all of them without Eve's attack. In classical case, Bob needs some queries. In quantum case, Bob needs just a query. By measuring the single entangled state, which is sent by Alice, Bob can obtain all the mappings concerning the function, simultaneously. This is faster than classical cryptography.

Seung Min Kim, Sung Hee Lim, So-Hee Kim +1 more

Vimmi Malhotra, Sahil Yadav, Vishal

This research paper explores the fascinating field of Quantum Cryptography, a cutting-edge technology that leverages principles of quantum mechanics to secure information transfer. The objective of this study is to delve into the underlying principles of Quantum Cryptography, specifically Quantum Key Distribution (QKD), and discuss its potential applications and challenges. The methodology involves a comprehensive review of existing literature and recent advancements in the field. The key findings reveal that Quantum Cryptography presents a promising solution for secure communication, offering robust defence against potential eavesdroppers. However, practical implementation faces several challenges, including technological limitations and the need for standardization. The implications of this study underscore the transformative potential of Quantum Cryptography in shaping the future of secure communication and highlight the need for further research and development in overcoming existing challenges.

Gábor Erdélyi, Tobias Riege, Jörg Rothe