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Simulating cloud environment for HIS backup using secret sharing.
Tomohiro Kuroda1, Eizen Kimura, Yasushi Matsumura
1Division of Medical Information Technology and Administration Planning, Kyoto University Hospital, Japan.
Studies in Health Technology and Informatics
|August 8, 2013
Summary
Hospitals can ensure data access during disasters using secret sharing for hospital information system (HIS) backups. This method enhances business continuity plans (BCPs) by enabling data retrieval even if remote storage fails.
Area of Science:
- Health Informatics
- Computer Science
- Information Security
Background:
- Hospitals require robust business continuity plans (BCPs) to maintain patient care during disasters.
- Hospital Information System (HIS) data backup is critical for BCPs, but data confidentiality increases costs.
- Existing backup solutions face challenges with privacy-sensitive data over the internet.
Purpose of the Study:
- To develop and evaluate a secret sharing environment for secure and cost-effective HIS data backup.
- To assess the feasibility of retrieving HIS data during disaster recovery scenarios.
- To improve hospital resilience through enhanced data backup strategies.
Main Methods:
- Developed a secret sharing environment within the StarBED large-scale network experiment facility.
- Implemented secret sharing to create pseudo-redundant arrays of independent disks for HIS data.
- Simulated disaster recovery scenarios to evaluate data retrieval performance.
Main Results:
- The developed secret sharing environment demonstrated potential for secure HIS data backup.
- Simulations confirmed that the entire HIS database could be retrieved within three days post-disaster.
- Successful data retrieval was achieved even with the failure of one distributed storage system.
Conclusions:
- Secret sharing is a viable method for protecting sensitive HIS data during remote backups.
- This approach significantly enhances hospital business continuity and disaster recovery capabilities.
- The study validates the effectiveness of secret sharing for ensuring data availability in critical healthcare settings.
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