ntvНаучно-технический вестник информационных технологий, механики и оптикиScientific and Technical Journal of Information Technologies, Mechanics and Optics2226-14942500-0373Университет ИТМО10.17586/2226-1494-2022-22-1-101-113ntv-278Research ArticleКОМПЬЮТЕРНЫЕ СИСТЕМЫ И ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИCOMPUTER SCIENCEОптимальная быстрая генерация и распределение квантовых ключейAn optimal swift key generation and distribution for QKDhttps://orcid.org/0000-0002-2842-0942СумаМ. Р.SumaM. R.

Сума Маллавалли Рагхавендра — доцент

Бангалор, 560078

Mallavalli Raghavendra Suma — Assistant Professor

Bengaluru, 560078

sumamrvp@gmail.comhttps://orcid.org/0000-0003-2803-3712МадхуматиП.MadhumathyP.

Мадхумати Перумал — доктор наук, доцент

Бангалор, 560076

Perumal Madhumathy — PhD, Associate Professor

Bengaluru, 560076

Madhumathyp.rvitm@rvei.edu.inИнженерный колледж Даянанда СагарИндияDayananda Sagar College of EngineeringIndiaRV Институт технологий и менеджментаИндияRV Institute of Technology and ManagementIndia202217122024221101113Copyright © Сума М.Р., Мадхумати П., 20242024Сума М.Р., Мадхумати П.Suma M.R., Madhumathy P.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://ntv.elpub.ru/jour/article/view/278

Защищенная передача данных между пользователями важна для систем связи. Большое распространение получили криптографические схемы для защищенной и скрытой передач информации в облачной среде между пользователями. В данной среде возникает множество проблем с безопасностью, такие как взлом учетных записей, утечка данных, нарушение аутентификации, скомпрометированные учетные данные и др. Применение принципов квантовой механики в криптографии повысило ее эффективность для решения проблем безопасности данных, передаваемых на аутсорсинг в облачной среде. В работе предложено решение обеспечения повышенной безопасности для пользователей облачных сервисов за счет применения модели быстрой генерации ключей для криптографии Quantum Key Distribution (QKD). Квантовое распределение ключей представляет собой безопасную схему, известную как Cloud QKDP. Для синхронизации канала генерируется случайная битовая последовательность при этом злоумышленник не может синхронизировать параметры между каналами. В методе согласования ключей случайная битовая последовательность объединена с состоянием поляризации фотона. Первый протокол квантового распределения ключей BB84 улучшен за счет оптимизации его битового размера с помощью FireFly Optimization в состоянии совместимости. В следующем состоянии передатчик и приемник генерируют необработанный ключ. Далее с помощью ключа выполняется передача сообщений между пользователями облака. Для реализации предложенной архитектуры использована среда Python. Точность представленной модели достигает 98 %, а уровень ошибок не превышает 2 %. Выполненные эксперименты показали, что модель генерации ключей Swift на основе алгоритма оптимизации Firefly для QKD работает эффективнее, чем известные алгоритмы.

Secured transmission between users is essential for communication system models. Recently, cryptographic schemes were introduced for secured transmission and secret transmission between cloud users. In a cloud environment, there are many security issues that occur among the cloud users such as, account hacking, data breaches, broken authentication, compromised credentials, and so on. Quantum mechanics has been implemented in cryptography that made it efficient for strong security concerns over outsourced data in a cloud environment. Therefore, the present research focuses on providing excellent security for cloud users utilizing a swift key generation model for QKD cryptography. The Quantum Key Distribution (QKD) is an entirely secure scheme known as Cloud QKDP. Initially, a random bit sequence is generated to synchronize the channel. An eavesdropper will not permit to synchronize parameters between them. In this key reconciliation technique, the random bit sequence is concatenated with the photon polarisation state. BB84 protocol is improved by optimizing its bit size using FireFly Optimization (FFO) at the compatibility state, and in the next state, both transmitter and receiver generate a raw key. Once the key is generated, it is then used for the transmission of messages between cloud users. Furthermore, a Python environment is utilized to execute the proposed architecture, and the accuracy rate of the proposed model attained 98 %, and the error rate is 2 %. This proves the performance of the proposed firefly optimization algorithm based swift key generation model for QKD performs better than previous algorithms.

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The authors declare that there are no conflicts of interest present.