Security without identification: transaction systems to make big brother obsolete
Communications of the ACM
CRYPTO '88 Proceedings on Advances in cryptology
On the fly signatures based on factoring
CCS '99 Proceedings of the 6th ACM conference on Computer and communications security
Smart Card Crypto-Coprocessors for Public-Key Cryptography
CARDIS '98 Proceedings of the The International Conference on Smart Card Research and Applications
An Efficient System for Non-transferable Anonymous Credentials with Optional Anonymity Revocation
EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
Elliptic Curve Cryptosystems on Smart Cards
SEC '02 Proceedings of the IFIP TC11 17th International Conference on Information Security: Visions and Perspectives
Message Ferrying: Proactive Routing in Highly-Partitioned Wireless Ad Hoc Networks
FTDCS '03 Proceedings of the The Ninth IEEE Workshop on Future Trends of Distributed Computing Systems
The blocker tag: selective blocking of RFID tags for consumer privacy
Proceedings of the 10th ACM conference on Computer and communications security
A message ferrying approach for data delivery in sparse mobile ad hoc networks
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
Memories: A Survey of Their Secure Uses in Smart Cards
SISW '03 Proceedings of the Second IEEE International Security in Storage Workshop
Privacy and security in library RFID: issues, practices, and architectures
Proceedings of the 11th ACM conference on Computer and communications security
Untraceable RFID tags via insubvertible encryption
Proceedings of the 12th ACM conference on Computer and communications security
Proxy re-signatures: new definitions, algorithms, and applications
Proceedings of the 12th ACM conference on Computer and communications security
A Lightweight RFID Protocol to protect against Traceability and Cloning attacks
SECURECOMM '05 Proceedings of the First International Conference on Security and Privacy for Emerging Areas in Communications Networks
Security and Privacy Issues in E-passports
SECURECOMM '05 Proceedings of the First International Conference on Security and Privacy for Emerging Areas in Communications Networks
Security analysis of a cryptographically-enabled RFID device
SSYM'05 Proceedings of the 14th conference on USENIX Security Symposium - Volume 14
Tamper resistance: a cautionary note
WOEC'96 Proceedings of the 2nd conference on Proceedings of the Second USENIX Workshop on Electronic Commerce - Volume 2
ESAS'05 Proceedings of the Second European conference on Security and Privacy in Ad-Hoc and Sensor Networks
RFID traceability: a multilayer problem
FC'05 Proceedings of the 9th international conference on Financial Cryptography and Data Security
Minimalist cryptography for low-cost RFID tags (extended abstract)
SCN'04 Proceedings of the 4th international conference on Security in Communication Networks
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
High-Power proxies for enhancing RFID privacy and utility
PET'05 Proceedings of the 5th international conference on Privacy Enhancing Technologies
A Privacy-Preserving Ticketing System
Proceeedings of the 22nd annual IFIP WG 11.3 working conference on Data and Applications Security
CCA-Secure Proxy Re-encryption without Pairings
Irvine Proceedings of the 12th International Conference on Practice and Theory in Public Key Cryptography: PKC '09
Vulnerabilities in first-generation RFID-enabled credit cards
FC'07/USEC'07 Proceedings of the 11th International Conference on Financial cryptography and 1st International conference on Usable Security
Anonymous authentication for RFID systems
RFIDSec'10 Proceedings of the 6th international conference on Radio frequency identification: security and privacy issues
ZKPDL: a language-based system for efficient zero-knowledge proofs and electronic cash
USENIX Security'10 Proceedings of the 19th USENIX conference on Security
E-ticketing scheme for mobile devices with exculpability
DPM'10/SETOP'10 Proceedings of the 5th international Workshop on data privacy management, and 3rd international conference on Autonomous spontaneous security
An electronic and secure automatic fare collection system with revocable anonymity for users
Proceedings of the 8th International Conference on Advances in Mobile Computing and Multimedia
Achieving key privacy without losing CCA security in proxy re-encryption
Journal of Systems and Software
RFIDSec'12 Proceedings of the 8th international conference on Radio Frequency Identification: security and privacy issues
Privacy-preserving billing for e-ticketing systems in public transportation
Proceedings of the 12th ACM workshop on Workshop on privacy in the electronic society
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We propose an application of recent advances in e-cash, anonymous credentials, and proxy re-encryption to the problem of privacy in public transit systems with electronic ticketing. We discuss some of the interesting features of transit ticketing as a problem domain, and provide an architecture sufficient for the needs of a typical metropolitan transit system. Our system maintains the security required by the transit authority and the user while significantly increasing passenger privacy. Our hybrid approach to ticketing allows use of passive RFID transponders as well as higher powered computing devices such as smartphones or PDAs. We demonstrate security and privacy features offered by our hybrid system that are unavailable in a homogeneous passive transponder architecture, and which are advantageous for users of passive as well as active devices.