Road Traffic Transaction Validation via Image Encryption
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Solution Overview
Problem
Current road traffic control systems face challenges in validating the legitimacy and authenticity of transactions generated from video recordings, as existing methods lack comprehensive authentication mechanisms, leading to potential unauthorized billing and manipulation risks.
Innovation Solution
A method that involves storing cryptographic keys in both the control station and transaction receiver, generating and encrypting authentication data using a random key and cryptographic key, and validating transactions by comparing authentication data at the transaction receiver, ensuring secure and direct validation of control transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional private-public-key signing is used for document authentication, then document manipulation can be detected, but comprehensive validation of the entire control transaction cannot be achieved
Solution Approach 1:
The authentication process is segmented into multiple independent components: a separate processing element generates cryptographic authentication data, a random key ensures uniqueness per transaction, and multi-layer encryption (random key + cryptographic key) protects the authentication data. This segmentation allows comprehensive transaction validation without requiring elaborate security systems throughout the entire control station.
Solution Approach 2:
A separate processing element acts as an intermediary between the control transaction generation and validation processes. This element independently generates authentication data using cryptographic keys, providing a trusted third-party verification mechanism that validates the entire control transaction without requiring the main control station to implement complex security systems.
2Reliability
If comprehensive authentication mechanisms are implemented, then transaction legitimacy can be validated, but system complexity increases
Solution Approach 1:
Cryptographic keys are pre-stored in both the control station's separate processing element and the transaction receiver before any transaction occurs. This preliminary setup enables immediate authentication validation without adding complex real-time processing requirements during transaction execution.
Solution Approach 2:
The system uses parameter changes in the form of random keys that vary for each transaction, combined with static cryptographic keys. This approach provides comprehensive authentication reliability through dynamic parameter variation while maintaining relatively simple system structure by reusing the same cryptographic infrastructure for all transactions.
Data Source
AI summary
A method for validating a road traffic control transaction. The method includes: storing a cryptographic key assigned to a transaction receiver, in the transaction receiver; recording an image of a vehicle; reading an identification of the vehicle in the recorded image by OCR and generating a control transaction thereof in the control station; generating a random key and encrypting the recorded image into authentication data with the random key and the cryptographic key in the control station; transmitting the recorded image, the control transaction, the random key and the authentication data to the transaction receiver; in the transaction receiver, encrypting the received recorded image into nominal authentication data with the received random key and the stored cryptographic key; and comparing the received authentication data with the nominal authentication data. The received control transaction is then validated when the received authentication data and the nominal authentication data are identical.