Electronic Parking Ticket Verification via Digital Certificate
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Solution Overview
Problem
Existing electronic parking ticket systems are vulnerable to 'man-in-the-middle' attacks, where a pirate transponder can fraudulently obtain and present valid parking data, making it impossible for control agents to detect fraud.
Innovation Solution
A method that verifies the validity of electronic parking tickets by ensuring the origin and integrity of data through cryptographic signatures, including receiving and verifying a digital certificate specific to the vehicle, and comparing this data with visible vehicle characteristics, such as the registration number or make, to prevent 'man-in-the-middle' attacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If contactless communication is used for electronic parking tickets, then convenience and speed of parking verification is improved, but vulnerability to man-in-the-middle attacks increases
Solution Approach 1:
The patent introduces a trusted third party (the parking authority's certification system) as an intermediary to verify the authenticity of the transponder's public key and digital certificate before communication occurs. This mediator prevents man-in-the-middle attacks by ensuring that the transponder is indeed authorized to provide parking services, thus resolving the security vulnerability while maintaining contactless communication speed.
Solution Approach 2:
The patent implements preliminary verification of the transponder's digital certificate and public key authenticity before the actual parking verification transaction occurs. By performing this security check in advance through challenge-response mechanisms, the system establishes trust beforehand, allowing fast contactless communication without compromising security.
2Reliability
If cryptographic signatures are added to verify transponder authenticity, then security against fraud is improved, but complexity of the verification process increases
Solution Approach 1:
The transponder performs self-verification by generating and presenting its own digital certificate signed with its private key. The control device simply needs to verify the certificate's authenticity against the trusted certification authority's public key. This self-service approach simplifies the overall verification process while maintaining strong security, as the transponder proves its identity without requiring complex mutual authentication protocols.
3Reliability
If vehicle-specific data verification is implemented, then detection of man-in-the-middle attacks is improved, but amount of data processing increases
Solution Approach 1:
The patent applies local quality verification by checking specific vehicle characteristics (such as license plate number, color, or other identifiable features) associated with the transponder against the actual vehicle. This targeted approach verifies only the relevant local attributes needed to confirm the transponder belongs to the correct vehicle, rather than processing all possible data, thus maintaining detection capability while minimizing data processing volume.
Data Source
AI summary
The method involves securely obtaining an electronic ticket from an electronic entity. Parking data that is specific to a vehicle (1) or to the electronic entity is obtained securely from the electronic entity. The electronic ticket and the specific data are received from the electronic entity by a wireless communication unit (310), and a portion of the specific data is made available by displaying the specific data on a screen of an inspection device. The portion of data is compared with a characteristic of the vehicle or the electronic entity. Independent claims are also included for the following: (1) an electronic entity comprising a storage unit (2) an inspection device comprising a wireless communication unit.