Vehicle Data Distribution via EPID Authentication
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Solution Overview
Problem
Existing systems for collecting and sharing vehicle data lack effective mechanisms for ensuring privacy and security, particularly in ensuring that vehicle owner identity is not revealed while allowing different subscribers to access various levels of information.
Innovation Solution
A data collection system comprising an onboard data service within a vehicle that authenticates and encrypts data using Enhanced Privacy Identifier (EPID) signatures, allowing secure and privacy-preserving data sharing with various subscribers through a trusted cloud service, where data is packaged and distributed based on subscription agreements and security protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If vehicle data is shared with multiple subscribers, then data utility and service value are improved, but vehicle owner privacy and security are compromised
Solution Approach 1:
The patent segments data access rights by creating different subscription types (public, private, semi-private) that control which subscribers can access which vehicle data. This allows the system to share data with multiple parties while maintaining granular control over privacy, resolving the contradiction between data utility and privacy protection.
Solution Approach 2:
The patent introduces a cloud service intermediary that manages data distribution between vehicles and subscribers. The cloud service acts as a trusted mediator that authenticates subscribers, manages encryption keys, and controls data flow, enabling secure multi-party data sharing without direct exposure between vehicle owners and all potential subscribers.
2Object-affected harmful factors
If data is encrypted for security, then privacy protection is improved, but data accessibility and usability are reduced
Solution Approach 1:
The patent applies different encryption and authentication mechanisms to different data types and access scenarios. Public data uses simpler access controls, while private data uses strong encryption with key management. This local differentiation of security measures protects sensitive data while maintaining ease of access for less sensitive information.
Solution Approach 2:
The patent performs preliminary authentication and encryption setup during subscription registration and data sharing establishment. Subscribers are pre-authenticated and receive appropriate cryptographic keys before data access, so that actual data retrieval operations can proceed efficiently without repeated heavy cryptographic operations.
3Reliability
If authentication mechanisms are implemented, then data source verification is improved, but system complexity increases
Solution Approach 1:
The patent implements a universal authentication framework using X.509 certificates and EPID signatures that works across all data sharing scenarios. The cloud service provides centralized authentication and key management that serves multiple functions (subscriber verification, data encryption, source authentication), reducing overall system complexity despite comprehensive authentication requirements.
Data Source
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AI summary
In accordance with some embodiments, data may be collected from vehicles, and then reported to various subscribers with different levels of access privileges and pursuant different levels of security. In some embodiments, the data may be authenticated by a cloud service without revealing the identity of vehicle owner. This may provide enhanced privacy. At the same time, some types of the data may be encrypted for security and privacy reasons. Different information may be provided under different circumstances to different subscribers, such as the government, family members, location based services providers, etc.