Efficient Parallel Secure Outsourcing of Modular Exponentiation to Cloud for IoT Applications

Qilin Hu, Mingxing Duan, Zhibang Yang, Siyang Yu, Bin Xiao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)


Modular exponentiation, an operation widely utilized in cryptographic protocols to transfer text and other forms of data, can also be applied to Internet-of-Things (IoT) devices with high security requirements. However, due to the high resource consumption of modular exponentiation, IoT devices can face the problem of resource insufficient. Fortunately, the secure outsourcing scheme offers a new solution for resource-constrained devices. In this article, we apply a parallel secure outsourcing scheme to provide the possibility for modular exponentiation operation, which is used in the IoT devices. After that, the task of modular exponentiation is decomposed and we introduce the scheme in more detail. In addition, based on this scheme, we designed an extension scheme for RSA, providing enhanced security for IoT devices. Finally, the analysis of experimental results based on 512-4096 b of data indicates the superiority in scalability and time consumption over the previous schemes.

Original languageEnglish
Article number9214962
Pages (from-to)12782-12791
Number of pages10
JournalIEEE Internet of Things Journal
Issue number16
Publication statusPublished - 15 Aug 2021


  • Cloud computing
  • Internet of Things (IoT)
  • modular exponentiation
  • parallel algorithm
  • secure outsourcing

ASJC Scopus subject areas

  • Signal Processing
  • Information Systems
  • Hardware and Architecture
  • Computer Science Applications
  • Computer Networks and Communications


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