Optimized identity-based encryption from bilinear pairing for lightweight devices

Fuchun Guo, Yi Mu, Willy Susilo, Homer Hsing, Duncan S. Wong, Vijay Varadharajan

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Lightweight devices such as smart cards and RFID tags have a very limited hardware resource, which could be too weak to cope with asymmetric-key cryptography. It would be desirable if the cryptographic algorithm could be optimized in order to better use hardware resources. In this paper, we demonstrate how identity-based encryption algorithms from bilinear pairing can be optimized so that hardware resources can be saved. We notice that the identity-based encryption algorithms from bilinear pairing in the literature must perform both elliptic curve group operations and multiplicative group operations, which consume a lot of hardware resources. We manage to eliminate the need of multiplicative group operations for encryption. This is a significant discovery since the hardware structure can be simplified for implementing pairing-based cryptography. Our experimental results show that our encryption algorithm saves up to 47 percent memory (27,239 RAM bits) in FPGA implementation.

Original languageEnglish
Article number7123602
Pages (from-to)211-220
Number of pages10
JournalIEEE Transactions on Dependable and Secure Computing
Volume14
Issue number2
DOIs
Publication statusPublished - 1 Mar 2017

Keywords

  • Encryption algorithm
  • Identity-based encryption
  • Security

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