Secure Data Storage via Key-Based Channel Segmentation

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Solution Overview

Problem

Conventional data encryption methods for secure data storage are vulnerable to key compromise, leading to unauthorized access and data exposure, necessitating additional security measures.

Innovation Solution

A method and system that divide data units into multiple subsets assigned to different data channels based on a key code for secure storage and retrieval, requiring the key code to reassemble the data units into their original sequence, ensuring secure access and preventing unauthorized reassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If data encryption is used for secure data storage, then data security is improved, but the system becomes vulnerable to key compromise

Engineering Contradiction:
Improvedata securityVSAvoidkey compromise vulnerability
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent divides data into multiple data units and distributes them across multiple data channels, where each channel is assigned to different writer-reader combinations. This segmentation ensures that compromising one channel or key does not expose the entire data set, as all segments are required for complete data reconstruction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a temporal dimension to data storage by assigning different data channels to different writer-reader combinations over time. Data units are written to and read from multiple channels in a sequence determined by a key code, adding a time-based layer of security beyond traditional encryption keys.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If multiple data channels are assigned to different writer-reader combinations based on key code, then data security is enhanced, but device complexity increases

Engineering Contradiction:
Improvedata securityVSAvoidchannel assignment complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent performs preliminary assignment of data channels to writer-reader combinations using a key code before data storage. This pre-configuration establishes the security parameters and channel mappings in advance, simplifying the actual storage and retrieval operations while maintaining enhanced security through the key-based assignment scheme.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS8725943B2Method and system for secure data storage
Publication Date: 2014.05.13 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US8725943B2 patent drawing
  • US8725943B2 patent drawing
  • US8725943B2 patent drawing

AI summary

A method and system for secure data storage and retrieval is provided. A sequence of data units is divided into multiple subsets of data units corresponding to multiple data channels. The multiple data channels are assigned to multiple data writers based on a key code. Then, each subset of data units is transferred to a writer via an assigned channel for writing to storage media. Thereafter, to securely retrieve the stored data, each subset of data units is read from the storage media using a data reader. The original sequence of data units can only be reassembled using the key code for properly reassembling the subsets of data units into their original sequence.