Policy-Based Data Management via Trust Authority Verification
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Solution Overview
Problem
Users are reluctant to disclose private data online due to the lack of adequate solutions ensuring data privacy policy compliance, leading to concerns about how their information is treated by service providers.
Innovation Solution
A network environment involving a client, service provider, and trust authority, where the client generates and encrypts privacy policies, and the trust authority ensures compliance by providing cryptographic keys only after verifying the service provider's assurance of policy adherence, using cryptographic protocols like PKI and IBE to secure data access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If users disclose private data to service providers, then data can be accessed and used for services, but data privacy policy compliance cannot be ensured
Solution Approach 1:
The patent introduces a trust authority as an intermediary between users and service providers. The trust authority verifies service provider credentials and enforces privacy policies, acting as a mediator that enables data access while ensuring compliance. This resolves the contradiction by allowing productive data sharing while maintaining reliable policy enforcement through the intermediary's verification and monitoring functions.
Solution Approach 2:
The system performs preliminary actions by requiring service providers to obtain verification credentials from the trust authority before accessing user data. Privacy policies are established and encrypted in advance, and service providers must prove their compliance capability before data disclosure. This preliminary enforcement ensures policy compliance is built into the system before data access occurs, resolving the trust issue while enabling efficient data utilization.
2Productivity
If service providers access encrypted data, then data utility is improved, but security risk increases
Solution Approach 1:
The patent applies local quality by encrypting data with different keys for different service providers and differentiating access permissions on a per-provider basis. Each service provider receives only the specific decryption credentials needed for their authorized operations, not universal access. This allows data utility for each provider while minimizing security risk by limiting exposure to only what is necessary for their specific service function.
Solution Approach 2:
The trust authority implements continuous feedback monitoring of service provider data access and usage. The system tracks whether providers are using data according to their verified credentials and privacy policies, providing ongoing feedback that enables detection and correction of compliance deviations. This feedback mechanism maintains security while allowing productive data access by actively monitoring and enforcing proper usage.
Data Source
AI summary
Compliance to a policy about how to treat data in a computer network environment is ensured by checking that conditions in the policy are satisfied by the entity before access to the data is provided.