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Structured data label watermark tracing method based on national secret

A structured data and label technology, applied in structured data retrieval, database indexing, digital data protection, etc., can solve problems such as the strong limitations of database watermarking technology, achieve high traceability accuracy, good robustness, and reduce costs effect of time

Pending Publication Date: 2021-12-28
北京创安恒宇科技有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, database watermarking technology has strong limitations, mostly for numerical data, and the data types in actual production are mostly numerical and character data, which is a problem that must be faced and solved at this stage

Method used

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  • Structured data label watermark tracing method based on national secret
  • Structured data label watermark tracing method based on national secret

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Embodiment Construction

[0045] Next, the technical solutions in the embodiments of the present invention will be described in connection with the drawings of the embodiments of the present invention, and it is understood that the described embodiments are merely the embodiments of the present invention, not all of the embodiments.

[0046] Refer Figure 1-2 , A method based on the main structured structured data label watermark, including the following steps:

[0047] S1: Data Processing Unit DP Split operation on the original data table structure of the data owner DO, and the data of different users will be split into different table structures so that the efficient traceability after data leaks, input is a group containing N The original database table A of the Yuan Zu, the output is a set of changed tables [A0], which can divide the corresponding table into different structures and number T for different distribution units to quickly locate the range.

[0048]S2: Add or replace its main foreign key to ...

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Abstract

The invention discloses a structured data label watermark tracing method based on national secret. The method comprises the following steps of: splitting an original data table structure of a data owner Do by a data processing unit Dp; adding or replacing a main foreign key to / for each split table so as to form a novel table structure which retains a reference relationship; and generating and storing a key. On the premise of taking a database watermarking technology as a basis, original data are not changed, excessive redundant information is not added to occupy a storage space, watermark embedding is completed through encryption of a self-added main key, and the data tracing requirement of numeric type and character type mixing is met. In the tracing stage, the self-added primary key of the original table structure is continuously encrypted, the data is compared with the leaked data, and a traitor is determined and a data leakage path is obtained finally. The tracing accuracy is extremely high, the cost and time are reduced, and the robustness is good.

Description

Technical field [0001] The present invention relates to the field of data traceability, and more particularly to a method based on the main structure of the labeling of the structured data label. Background technique [0002] Under large data scenes, data transactions are increasing, and data is facing the risk of attackers and trafficking in various circulation, and data traceability techniques are particularly important. The data traceability technology is mainly to record the evolution information and evolution processing contents of the original data throughout the life cycle, emphasizing a technique that is tracing this pseudogenic, reproduces the historical state and evolution of data according to the trace data of the data. This technology can be quickly positioned to the leillers after the data is leaked. [0003] Traditional data traceability technologies, such as labeling methods and reverse query law, etc., although simple and effective, storage information requires ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/16G06F21/60G06F16/22
CPCG06F21/16G06F21/602G06F16/2282G06F16/2255
Inventor 安琪周发桂刘锡明
Owner 北京创安恒宇科技有限公司
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