Database data encryption and decryption method and device

Abstract

The invention relates to a database data encryption and decryption method and device. The database data encryption and decryption method comprises the steps that a cryptographic algorithm and a secret key are acquired, encryption and decryption are conducted on an encryption and decryption object through the cryptographic algorithm and the secret key, and the encryption and decryption object is a database table, or a line in the database table, or a view or a line in the view. The database data encryption and decryption device comprises an acquiring module and an encryption and decryption module, wherein the acquiring module is used for acquiring the cryptographic algorithm and the secret key, and the encryption and decryption module is used for conducting encryption and decryption on the encryption and decryption object through the cryptographic algorithm and the secret key which are acquired by the acquiring module. The encryption and decryption object is the database table, or the line in the database table, or the view or the line in the view. The database data encryption and decryption method and the database data encryption and decryption device achieve expansion of an encryption and decryption mode of a database, and satisfy requirements for efficient data encryption and decryption of a mobile computing environment and network application.

Description

technical field [0001] The invention relates to the field of computers, in particular to a database data encryption and decryption method and device. Background technique [0002] With the rapid development of networking and informatization, the problem of safe access to information resources has become increasingly prominent. Encryption is one of the core issues of database security. Database encryption technology is an effective means to ensure the security of sensitive information stored in the database. At present, a large number of cryptographic algorithms and protocols have been designed at home and abroad. Most of the cryptographic algorithms are designed based on three points: the cryptographic strength of the algorithm, the speed of encryption and decryption, and the required space size, without fully considering the impact of the implementation of the encryption mechanism on the function and efficiency of the entire database system. Contents of the invention ...

AI Technical Summary

Problems solved by technology

Most of the cryptographic algorithms are designed based on three points: the cryptographic strength of the algorithm, the speed of encryption and decryption, and the required space size, and the impact of the implementation of the encryption mechanism on the function and efficiency of the entire database system is not fully considered.

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