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Ingénierie des systèmes d information

Secure key management in cloud environment using quantum cryptography

Kranthi Kumar Singamaneni, P. Sanyasi Naidu

Published Oct 28, 2018• 10 citations
Publisher
DOI
10.3166/isi.23.5.213-222

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Enhancement of security in cloud computing is challengeable when big data such as medical and government confidential information involves in a cloud environment.The managing key for individual user participated in the mobile cloud will be the problem when big data is handled without efficient security key management.Especially, mobile cloud nodes where users handle their data can be anywhere else in the cloud environment.So, managing keys for random users and finding correct locations of users" nodes and their identities are interesting areas for the research.To solve this problem related to key management, cloud services need efficient key management that employs quantum cryptography using Grover"s algorithm.Moreover, in this research, we introduce effective authentication technique in order to improve the level of security (with minimum complexity) In this paper, theoretical model, Grover"s algorithm and quantum cryptography with the PairHand protocol are considered as methodologies.As summarized results, security levels of users and services providers are considered to verify the services used in a cloud environment.In spite of same quantum properties characterize the light, data security issues are still not matured with the light technology.Hiding the big data in the light through this research methodology will be the conclusion of the future security.
The rapid adoption of cloud infrastructures has intensified concerns regarding data confidentiality, integrity, and trust management, particularly in the presence of emerging quantum computing threats. Classical cryptographic mechanisms, which underpin most existing cloud security architectures, are increasingly vulnerable to quantum attacks capable of compromising public-key encryption and key exchange protocols. To address these challenges, this paper proposes a hybrid security framework that integrates Quantum Cryptography with Blockchain technology to achieve robust, future-resistant data protection in cloud environments. The proposed framework leverages Quantum Key Distribution (QKD) to enable provably secure key generation and exchange based on quantum mechanical principles, ensuring resistance against eavesdropping and computational attacks. Blockchain technology is employed to provide decentralized trust, immutable audit trails, and transparent access control across distributed cloud services. Smart contracts enforce fine-grained security policies, automate authentication, and ensure tamper-proof data access logging. The synergy between quantum cryptography and blockchain establishes a secure key lifecycle, resilient identity management, and verifiable data integrity within multi-tenant cloud infrastructures. Comprehensive security analysis demonstrates that the proposed approach effectively mitigates quantum-enabled attacks, insider threats, and single-point-of-failure vulnerabilities commonly found in traditional cloud security models. Experimental evaluation and comparative analysis highlight improvements in data integrity assurance, key management robustness, and trust transparency, with acceptable computational and communication overhead. The results indicate that integrating quantum cryptography with blockchain presents a scalable and future-proof security paradigm for next-generation cloud infrastructures.
Cloud computing is an internet-based computing, where shared resources, software, and information are provided with consumers on-demand. They guarantee a way to share distributed resources and services that belong to different organizations. In order to build secure cloud environment, data security and cryptography must be assured to share data through distributed environment. So, this paper provides more flexibility and secured communication environment by deploying a new cryptographic service. This service entails both Quantum Key Distribution (QKD) and enhanced version of Advanced Encryption Standard (AES). Moreover, this service solves the key distribution and key management problems in cloud environment which emerged through the two implemented modes, on-line and off-line modes.