Preserving patron privacy while performing highly reliable transactions at all traffic speeds and conditions represents a significant challenge in the design and implementation of road pricing systems. Most systems available today use data encryption for transaction security. However, the encryption methods employed by these systems leave a trail of information which can be used to trace a specific transaction to a specific patron. Amtech's DyniCash system, on the other hand, uses a patented data encryption scheme with ISO smart card technology to ensure reliable and secure transaction processing at high traffic speeds while providing patrons' complete transaction privacy. This paper describes the system architecture and components, and the transaction phases. It also discusses the security and privacy problems. Very brief details of the field test results on the reliability of the system are provided.
Samenvatting