Remote Data Storage Popularity-Based Deduplication and Encryption
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Solution Overview
Problem
Existing remote data storage solutions face challenges in balancing data security and storage efficiency, particularly in cloud storage systems, where deduplication and encryption are often incompatible, leading to security vulnerabilities and inefficiencies.
Innovation Solution
A method that evaluates file popularity to determine storage form, with popular files stored in a deduplicated form for efficiency and less popular files stored in an encrypted form, using a threshold encryption system to ensure semantic security and seamless transitions between storage modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is encrypted before storage to ensure security, then data confidentiality is improved, but storage efficiency deteriorates because deduplication cannot be applied
Solution Approach 1:
The patent implements dynamic storage mode selection based on file popularity metrics. Files transition between encrypted storage mode (for low-popularity files) and deduplicated storage mode ( for high-popularity files), allowing the system to adaptively balance security and efficiency rather than using a static approach
Solution Approach 2:
The system changes the storage parameter (encryption vs. deduplication) based on the popularity parameter of files. By monitoring file access patterns and popularity metrics, the system dynamically adjusts the storage method to optimize both security and storage efficiency for different file types
2Productivity
If deduplication is applied to save storage space, then storage efficiency is improved, but data security deteriorates because encrypted data cannot be deduplicated
Solution Approach 1:
The system dynamically switches between deduplication and encryption based on file popularity. When files become popular (exceeding a threshold), the system transitions from encrypted storage to deduplicated storage, maximizing space savings for frequently accessed data while maintaining security for less common files
Solution Approach 2:
The storage method parameter changes based on the popularity metric of files. The system uses popularity thresholds to determine whether to apply deduplication or encryption, optimizing the trade-off between storage efficiency and security for different data sets
3Reliability
If all files are stored in encrypted form to maintain security, then data confidentiality is improved, but storage cost increases due to inability to apply space-saving functions
Solution Approach 1:
The patent implements dynamic storage mode selection based on file popularity metrics. Files transition between encrypted storage mode (for low-popularity files) and deduplicated storage mode ( for high-popularity files), allowing the system to adaptively balance security and efficiency rather than using a static approach
Solution Approach 2:
The system changes the storage parameter (encryption vs. deduplication) based on the popularity parameter of files. By monitoring file access patterns and popularity metrics, the system dynamically adjusts the storage method to optimize both security and storage efficiency for different file types
Data Source
AI summary
A computer-implemented method for performing remote data storage includes providing, by at least one client, files to be stored on a remote server, evaluating popularity of the files, and storing the files on the server in a form that depends on the popularity of the files. Files with a first level of popularity are stored in a deduplicated form and files with a second level of popularity are stored in an encrypted form, the first level of popularity being higher than the second level of popularity.