A Privacy-Preserving Mobile Payment System for Mass Transit

Jeonil Kang, Dae Hun Nyang

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


In the near future, mobile payment systems based on smartphones are expected to be widely applied in various environments, including transit services. When passengers use mass transit, their private information, such as their identity and route, may be made available to some related organizations, such as transit agencies, financial institutions, mobile carriers, and providers of smart cards, among others, even when the passengers may not want their information to be revealed. To protect passenger privacy, this paper proposes a privacy-preserving transit payment system based on traceable signatures, identity-based signatures, and anonymous signatures. In addition to passenger privacy, the proposed system facilitates the proactive blocking of misbehaving passengers, free-transfer services (or transfer discount), and postpaid programs. We demonstrate that the performance of this system is good enough for immediate deployment based on various experiments.

Original languageEnglish
Article number7805316
Pages (from-to)2192-2205
Number of pages14
JournalIEEE Transactions on Intelligent Transportation Systems
Issue number8
StatePublished - Aug 2017

Bibliographical note

Publisher Copyright:
© 2016 IEEE.


  • Mobile payment
  • anonymity
  • mass transit system
  • traceable signature
  • user privacy


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