Tamper-Evident Fare Meter Architecture for Secure Parameter Updates
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Solution Overview
Problem
The process of updating for-hire vehicle meters is labor-intensive and costly due to the need for physical resealing after regulatory updates or repairs, leading to inefficiencies and missed revenue opportunities.
Innovation Solution
A tamper-evident system separates regulated and non-regulated meter components, allowing updates and repairs without resealing, using a secured, tamper-evident medium for fare information and encryption, with tamper indicators and a computer system for secure parameter distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire meter is sealed with a physical seal to prevent tampering, then security against fraud is improved, but the complexity and cost of updating fare rates increases significantly
Solution Approach 1:
The meter is divided into a sealed portion containing only the tamper-evident seal and fare information, and an unsealed portion containing all other meter components. This segmentation allows the sealed portion to maintain security while the unsealed portion can be accessed for updates and repairs without breaking the seal.
Solution Approach 2:
The fare information is extracted from the main meter body and placed in a separate, self-destructing memory device that is part of the sealed portion. This extraction allows the fare information to be securely sealed while the main meter remains accessible for maintenance.
2Adaptability or versatility
If the physical seal is broken to update fare rates, then the ability to modify parameters is improved, but evidence of tampering is lost and security is compromised
Solution Approach 1:
The sealed portion is pre-configured with a self-destructing memory device that automatically destroys the fare information if tampering is detected. This preliminary action ensures that even if the seal is broken, the fraudulent fare information cannot be used, maintaining security while allowing legitimate updates through the secure interface.
3Reliability
If manual updating of each meter is performed to change fare rates, then security control is improved, but the time and labor required increases significantly
Solution Approach 1:
The meter system enables self-service updating through a secure interface that allows authorized users to load new fare information directly into the sealed portion's self-destructing memory device without requiring physical access to the entire meter or breaking the seal. This maintains regulatory control while dramatically improving update efficiency.
4Reliability
If the entire meter is resealed after repairs to maintain security, then security is preserved, but the time and cost of repairs increases
Solution Approach 1:
By separating the meter into sealed and unsealed portions, repairs to the unsealed portion (such as the display, printer, or circuit board) can be performed without affecting the sealed portion containing the fare information. This eliminates the need to break and reseal the tamper-evident seal for routine repairs.
Data Source
AI summary
Systems and methods of securing, distribution and enforcing for-hire vehicle operating parameters are described whereby a first computer system maintaining the parameters generates a data packet that is distributed to a second computer system which acts as a meter (such as a taximeter, limousine meter or shuttle meter) for the for-hire vehicle. The first computer system may secure or encrypt the data packet according to a security protocol associated with the second computer system. Once the second computer system receives the data packet, it may validate and extract the operating parameters contained within it. The second computer system may then store the operating parameters and operate according to the parameters by, for example, calculating fares for passengers that make use of the for-hire vehicle associated with the second computer system. The second computer system may include a secure segment that is attached to the for-hire vehicle and a non-secure segment that may be easily removed to prevent theft or for repairs.