Secure and Searchable System for Patient-driven Health Data Sharing (S3PHER)

แนวคิดหลัก

S3PHER is a novel system that provides patients with full control over who can access their health data, what data is accessed, and when, while ensuring end-to-end privacy through the integration of Proxy Re-Encryption and Searchable Encryption schemes.

บทคัดย่อ

S3PHER is a system designed to enable secure and private sharing of healthcare data between patients and their healthcare practitioners. It consists of two main modules:
Data Sharing Module:

Patients encrypt their healthcare documents before uploading them to a Proxy Server (PS).
Patients retain control over who can access their data and can grant or revoke access to healthcare practitioners.
The PS cannot decrypt the data but can re-encrypt it for authorized practitioners using a Proxy Re-Encryption scheme.
Searchable Encryption Module:

Patients build an encrypted index of keywords associated with their healthcare documents.
Healthcare practitioners can securely search the encrypted index using Homomorphic Encryption, without revealing the keywords or the content of the documents.
The search results are sent back to the patient, who can then authorize or decline access to the requested documents.
The system ensures end-to-end privacy and confidentiality of the patient's sensitive health data, while also providing efficient search capabilities. Performance evaluations and simulations of various healthcare use cases demonstrate the practicality and benefits of S3PHER.

สถิติ

The size of healthcare documents has a significant impact on the encryption and decryption times, but not on the Proxy Re-Encryption operations.
The number of keywords has a greater impact on the performance of the search process than the number of files.

คำพูด

"S3PHER is a novel approach to sharing health data that provides patients with control over who accesses their data, what data is accessed, and when."
"The system achieves end-to-end data privacy by employing a non-interactive Proxy Re-Encryption scheme and a Searchable Encryption scheme that uses Homomorphic Encryption."

ข้อมูลเชิงลึกที่สำคัญจาก

S3PHER: Secure and Searchable System for Patient-driven HEalth data shaRing

by Ivan Costa,I... ที่ arxiv.org 04-18-2024

https://arxiv.org/pdf/2404.11372.pdf

สอบถามเพิ่มเติม

How can S3PHER be extended to support interoperability with existing healthcare data standards, such as FHIR?

S3PHER can be extended to support interoperability with existing healthcare data standards, such as Fast Healthcare Interoperability Resources (FHIR), by implementing FHIR APIs and data models within the system. This would allow seamless integration with other healthcare systems that adhere to the FHIR standard.

FHIR API Integration: S3PHER can be designed to expose FHIR-compliant APIs that allow external systems to interact with the healthcare data securely. These APIs can follow the FHIR specifications for data exchange, ensuring compatibility with other FHIR-enabled systems.

Data Mapping: The healthcare data stored in S3PHER can be mapped to FHIR resources and profiles. This mapping ensures that the data structure aligns with the FHIR standard, enabling smooth data exchange and interoperability with FHIR-based systems.

Metadata Management: Incorporating FHIR metadata elements into the data stored in S3PHER can enhance the interoperability of the system. Metadata such as patient demographics, clinical observations, and diagnostic reports can be structured according to FHIR standards.

Consent Management: Implementing FHIR Consent and Provenance resources within S3PHER can ensure that data access and sharing comply with patient consent preferences as defined by FHIR. This enhances data security and privacy while maintaining interoperability.

FHIR Search Capabilities: Leveraging FHIR search parameters and capabilities can enhance the search functionality of S3PHER. By enabling FHIR-compliant search queries, users can efficiently retrieve specific healthcare data based on FHIR-defined criteria.

By incorporating these features and aligning with FHIR standards, S3PHER can seamlessly integrate with existing healthcare systems, promote data interoperability, and facilitate secure data exchange in the healthcare domain.

How can S3PHER's security and privacy guarantees be formally verified to ensure compliance with regulations like GDPR and HIPAA?

To ensure compliance with regulations like GDPR and HIPAA, S3PHER's security and privacy guarantees can be formally verified through rigorous testing and validation processes. Here are some steps to formally verify S3PHER's security and privacy guarantees:

Formal Verification Tools: Utilize formal verification tools and techniques to mathematically prove the correctness of S3PHER's encryption schemes, access control mechanisms, and data handling processes. Formal methods such as model checking and theorem proving can be applied to verify the system's security properties.

Security Audits: Conduct regular security audits and penetration testing to identify vulnerabilities and assess the system's resilience against potential threats. External security experts can perform comprehensive audits to validate the effectiveness of S3PHER's security controls.

Compliance Assessments: Engage with regulatory compliance experts to assess S3PHER's adherence to GDPR, HIPAA, and other relevant data protection regulations. Ensure that the system meets the specific requirements outlined in these regulations regarding data privacy, consent management, and security practices.

Privacy Impact Assessments: Conduct Privacy Impact Assessments (PIAs) to evaluate the potential privacy risks associated with S3PHER's data processing activities. Identify and mitigate any privacy concerns to align with the principles of data minimization, purpose limitation, and data protection by design and by default.

Certifications and Standards: Seek certifications such as ISO 27001 for information security management and HITRUST for healthcare data protection. Adhering to industry standards and best practices can demonstrate S3PHER's commitment to security and compliance.

Continuous Monitoring: Implement continuous monitoring and logging mechanisms to track access to sensitive data, detect anomalies, and respond to security incidents promptly. Regularly review and update security policies and procedures to maintain compliance with evolving regulations.

By following these steps and engaging in thorough formal verification processes, S3PHER can enhance its security posture, demonstrate compliance with regulatory requirements, and build trust among users regarding the protection of their healthcare data.

What other applications beyond healthcare could benefit from the combination of Proxy Re-Encryption, Searchable Encryption, and Homomorphic Encryption used in S3PHER?

The combination of Proxy Re-Encryption, Searchable Encryption, and Homomorphic Encryption used in S3PHER can benefit various applications beyond healthcare. Here are some potential use cases:

Financial Services: Secure data sharing and analysis in the financial sector can leverage these encryption techniques to protect sensitive financial information while enabling secure collaboration between institutions.

Legal Services: Law firms can use these encryption methods to securely share confidential legal documents and conduct private searches over encrypted case files, ensuring client data confidentiality.

Research Collaboration: Academic institutions and research organizations can utilize these encryption techniques to securely share research data, collaborate on projects, and perform private searches over encrypted datasets without compromising data privacy.

Government Agencies: Government entities can apply these encryption methods to protect classified information, facilitate secure data sharing between agencies, and enable private searches over sensitive government data.

Cloud Storage Services: Cloud service providers can enhance data security and privacy for their users by implementing Proxy Re-Encryption, Searchable Encryption, and Homomorphic Encryption to protect stored data and enable secure search functionalities.

IoT Data Security: Internet of Things (IoT) devices can benefit from these encryption techniques to ensure the confidentiality and integrity of IoT data transmitted and stored in cloud environments, safeguarding sensitive information from unauthorized access.

Supply Chain Management: Secure data sharing and collaboration among supply chain partners can be achieved using these encryption methods to protect trade secrets, confidential contracts, and supply chain data while enabling secure search capabilities.

By applying Proxy Re-Encryption, Searchable Encryption, and Homomorphic Encryption in various domains, organizations can enhance data security, privacy, and confidentiality, enabling secure data sharing, collaboration, and analysis across different industries.