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Title: A Lightweight Post-Quantum Lattice-Based RSA for Secure Communications
Authors: Mustafa, Iqra 
Khan, Imranullah 
Aslam, Sheraz 
Sajid, Ahthasham 
Mohsin, Syed Muhammad 
Awais, Muhammad 
Qureshi, Muhammad Bilal 
Major Field of Science: Natural Sciences
Field Category: Computer and Information Sciences
Keywords: Gauss-sieve algorithm;IoT application;Lattice-based cryptography;LB-RSA;Post-quantum cryptography
Issue Date: 2020
Source: IEEE Access, 2020, vol. 8. pp. 99273-99285
Volume: 8
Start page: 99273
End page: 99285
Journal: IEEE Access 
Abstract: Conventional RSA algorithm, being a basis for several proposed cryptosystems, has remarkable security laps with respect to confidentiality and integrity over the internet which can be compromised by state-of-the-art attacks, especially, for different types of data generation, transmission, and analysis by IoT applications. This security threat hindrance is considered to be a hard problem to solve on classical computers. However, bringing quantum mechanics into account, the concept no longer holds true. So, this calls out for the modification of the conventional pre-quantum RSA algorithm into a secure post-quantum cryptographic-based RSA technique. In this research, we propose a post-quantum lattice-based RSA (LB-RSA) for IoT-based cloud applications to secure the shared data and information. The proposed work is validated by implementing it in 60-dimensions. The key size is about .152\times 10^{5}$ -bits and generation time is 0.8 hours. Furthermore, it has been tested with AVISPA, which confirms security in the presence of an intruder. Moreover, the proposed LB-RSA technique is compared with the existing state-of-the-art techniques. The empirical results advocate that the proposed lattice-based variant is not only safe but beats counterparts in terms of secured data sharing.
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2020.2995801
Rights: This work is licensed under a Creative Commons Attribution 4.0 License.
Attribution-NonCommercial-NoDerivatives 4.0 International
Type: Article
Affiliation : Cork Institute of Technology 
Harbin Engineering University 
Cyprus University of Technology 
COMSATS University Islamabad 
Lancaster University 
Shaheed Zulfikar Ali Bhutto Institute of Science and Technology 
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