A probabilistic public key encryption switching scheme for secure cloud storage

Radhakrishna Bhat, N. R. Sunitha, S. S. Iyengar

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The high demand for user-centric applications such as secure cloud storage laid the foundation for the development of user-centric security schemes with multiple security features in recent years. But, the current state-of-art techniques primarily emphasized only one type of security feature i.e., either homomorphism or non-malleability. To fill this gap and provide a common platform for both homomorphic and non-malleable cloud applications, we have introduced a new public key-based probabilistic encryption switching method. The proposed scheme generates O(m+2 log N) bits of ciphertext where m∈ N and m< n, n∈ N is the plaintext size, N is the RSA composite. The superior performance of the proposed scheme has been tested in comparison to existing methods and is reported in this paper.

Original languageEnglish
Pages (from-to)675-690
Number of pages16
JournalInternational Journal of Information Technology (Singapore)
Issue number2
Publication statusPublished - 02-2023

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Science Applications
  • Computer Networks and Communications
  • Computational Theory and Mathematics
  • Artificial Intelligence
  • Applied Mathematics
  • Electrical and Electronic Engineering


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