Key segment storage method and device, computer device and storage medium

By storing the key in segments and constructing a linear regression function using a confusion factor and random numbers, the security problem of storing the key locally is solved, achieving higher security and concealment.

CN116192379BActive Publication Date: 2026-06-09KINGDEE DEEKING CLOUDCOMPUTING CO LTD
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Patent Information

Application Number
CN202310147480.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-02
Publication Date
2026-06-09
Estimated Expiration
2043-02-02

AI Technical Summary

Technical Problem

In existing technologies, the lack of effective protection when keys are stored locally makes them prone to leakage, thus reducing the security of key storage.

Method used

By encoding the original key, obtaining the target confusion factor and random number, constructing a linear regression function, selecting the current input value from the target value set in turn, analyzing the relationship between the number of iterations and the multiple of the confusion factor, generating and storing the final value in segments, the concealment and security of the key are enhanced.

Benefits of technology

It improves the security and concealment of key storage, prevents key leakage, and enhances the security and remoteness of the algorithm.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a key segmentation storage method and device, computer equipment and a storage medium. The method comprises the following steps: obtaining an original key, encoding the original key to obtain a target value set; obtaining a target confusion factor and a target random number, and constructing a target linear regression function; sequentially selecting a current substitution value from the target value set, obtaining a current cycle number, analyzing the multiple relationship between the current cycle number and the target confusion factor to obtain a target analysis result; based on the target analysis result, substituting the current substitution value into the target linear regression function to obtain at least two current intermediate values; adding the at least two current intermediate values into a corresponding current intermediate value set to obtain at least two current intermediate value sets; repeating the operation of selecting the current substitution value until a termination condition is met, and obtaining at least two target result value sets; and sequentially splicing each value corresponding to the at least two target result value sets respectively to generate and store at least two final values. The method can improve the security of key storage.
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Citation Information

Patent Citations

  • Key distribution method

    CN104917604A

  • Mask S box, packet key calculation unit, apparatus and corresponding construction method

    CN106788974A