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A Lightweight Post-Quantum Lattice-Based RSA for Secure Communications

Research output: Contribution to journalJournal articlepeer-review

  • Iqra Mustafa
  • Imran Ullah Khan
  • Sheraz Aslam
  • Ahthasham Sajid
  • Syed Muhammad Mohsin
  • Muhammad Awais
  • Muhammad Bilal Qureshi
<mark>Journal publication date</mark>8/06/2020
<mark>Journal</mark>IEEE Access
Number of pages13
Pages (from-to)99273-99285
Publication StatusPublished
Early online date19/05/20
<mark>Original language</mark>English


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 1.152 × 105 -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.