Modeling method and device based on data privacy security protection

Abstract

The invention discloses a modeling method and device based on data privacy security protection, and belongs to the technical field of data privacy security protection, and the method comprises the steps: S1, a data owner carries out the encryption conversion of a training set through a secret key matrix, and obtains an encrypted training set; the encrypted training set is sent to a model and a computing power provider, and a key matrix is defined based on the characteristics of the training set; s2, the model and computing power provider constructs a linear regression model based on the encrypted training set, and trains the linear regression model to obtain an encrypted data model; and S3, the data owner receives the encrypted data model fed back by the model and the computing power provider, and calls the key matrix to decrypt the encrypted data model to obtain a target data model. According to the method and device, the data model can be safely, efficiently and simply established, so that the technical problems that the security is difficult to guarantee, the encryption and decryption processes are tedious and the like in the existing data privacy security protection computing framework are solved.

Description

technical field [0001] The invention belongs to the technical field of data privacy security protection, and more particularly relates to a modeling method and device based on data privacy security protection. Background technique [0002] In recent years, machine learning has been widely used in practical scenarios such as life and production. The construction and training of these models rely on a large amount of data collected from multiple sources. The current collection and aggregation of a large amount of data has aroused people's concerns about data security, privacy leakage and other issues. The proposal and development of data privacy protection technology can help users and business organizations better protect data privacy and security, and promote more secure sharing and intercommunication of data and models. Therefore, data privacy security protection technology is of great significance in practical applications. [0003] The commonly used methods of data priv...

AI Technical Summary

Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a modeling method and device based on data privacy security protection, the purpose of which is to realize safe, efficient, and simple data model establishment, thereby solving the problem of existing data There are technical problems such as difficult to guarantee security and cumbersome encryption and decryption process in the privacy and security protection computing framework

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