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Paper 2013/206

Privacy-Preserving Billing for e-Ticketing Systems in Public Transportation

Florian Kerschbaum and Hoon Wei Lim and Ivan Gudymenko

Abstract

Many electronic ticketing systems for public transportation have been deployed around the world. Using the example of Singapore's EZ-Link system we show that it is easy to invade a traveller's privacy and obtain his travel records in a real-world system. Then we propose encrypted bill processing of the travel records preventing any kind of privacy breach. Clear advantages of using bill processing instead of electronic cash are the possibility of privacy-preserving data mining analyses by the transportation company and monthly billing entailing a tighter customer relation and advanced tariffs. Moreover, we provide an implementation to demonstrate the feasibility of our solution.

Note: Camera-ready version

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Published elsewhere. ACM Workshop on Privacy in the Electronic Society (WPES 2013)
DOI
10.1145/2517840.2517848
Keywords
e-ticketing systemlocation privacyprivacy-preserving bill computationprivacy-preserving data mining
Contact author(s)
fkerschbaum @ googlemail com
History
2013-09-09: last of 4 revisions
2013-04-14: received
See all versions
Short URL
https://ia.cr/2013/206
License
Creative Commons Attribution
CC BY
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