Character String Block Segmentation for Private Data Transmission
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Solution Overview
Problem
Existing methods for transmitting character string data from electronic devices fail to adequately secure privacy, especially when dealing with long strings, as they become complex and cumbersome to obfuscate and restore.
Innovation Solution
The method involves dividing character strings into designated blocks, inserting connection information, and applying a local differential privacy algorithm to each block before transmission, and upon reception, performing inverse calculations to restore the original string.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If noise is inserted into the character string data to obfuscate it, then privacy security is improved, but the complexity of the obfuscation and restoration process increases
Solution Approach 1:
The patent divides the character string data into multiple blocks before applying noise insertion. This segmentation allows the privacy protection mechanism to be applied in a modular fashion, reducing the overall complexity of handling long character strings while maintaining security. Each block can be processed independently, making the restoration process more manageable.
2Loss of information
If the length of the character string data is increased, then more information can be transmitted, but the obfuscation and restoration processes become more complex
Solution Approach 1:
By dividing long character strings into smaller blocks, the patent enables transmission of more information while keeping each block's processing complexity manageable. The segmentation allows parallel processing and reduces the computational burden on restoration operations.
Solution Approach 2:
The patent performs preliminary organization of character string data into blocks with specific structures before transmission. This preliminary action includes arranging blocks in a sequence that facilitates easier restoration, reducing the complexity of the restoration process despite transmitting longer information.
Data Source
AI summary
An electronic device may comprise: a communication module comprising communication circuitry and at least one processor, comprising processing circuitry, wherein at least one processor, individually and/or collectively, is configured to: obtain a character string; divide the obtained character string by a designated character string unit to obtain first character string blocks; obtain second character string blocks by inserting connection information between the first character string blocks into each of the first character string blocks; apply a local differential privacy algorithm for each of the second character string blocks; and transmit, to the outside via the communication module, character string data including the second character string blocks to which the local differential privacy algorithm has been applied.