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Database management system kernel oriented data encryption/decryption system and method thereof

A management system and data encryption technology, which is applied in the field of database management, can solve the problems of database encrypted retrieval affecting performance, etc., and achieve the effect of not being easy to steal and reducing the burden

Inactive Publication Date: 2009-11-25
北京人大金仓信息技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this system, the data stored in the database can be encrypted and decrypted at the kernel level of the DBMS, and it can effectively solve the problem that the performance of the encrypted retrieval of the database is affected

Method used

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  • Database management system kernel oriented data encryption/decryption system and method thereof
  • Database management system kernel oriented data encryption/decryption system and method thereof
  • Database management system kernel oriented data encryption/decryption system and method thereof

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Embodiment Construction

[0047]The specific composition and structure of the data encryption and decryption system oriented to the core of the database management system provided by the present invention will be firstly introduced below.

[0048] Such as figure 1 As shown, the database data encryption and decryption system includes multiple user request interface units distributed on the client side and encryption definition units, query processing units, data operation units, key management units, data decryption units, data encryption units and keystore etc. Wherein, the user requests the interface unit to connect to the SQL engine in the database system. The SQL engine is respectively connected with the encryption definition unit, the query processing unit and the data operation unit. The encryption definition unit is connected to the key management unit and also connected to the database system itself. The key management unit is connected with the key store. The keystore can be stored in an en...

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Abstract

The invention discloses a database management system kernel oriented data encryption / decryption system and a concrete method for performing encryption / decryption processing on data in a database by utilizing the same. The data encryption / decryption system comprises user request interface units which are distributed at clients and an encryption definition unit, an inquiry processing units, a data operation unit, a key management unit, a data decryption unit, a data encryption unit and a key database which are distributed at a server end. The system and the method realize the storage and the encryption of data in a database management system kernel. When the retrieval with a key is performed on the data in the database, the prior optimization strategy of the database can still be used, so the high-performance retrieval with the key can be provided.

Description

technical field [0001] The invention relates to a database management system (DBMS for short) oriented kernel layer implementation, a system and a method for encrypting and decrypting data in a database, and belongs to the technical field of database management. Background technique [0002] DBMS is the core and foundation of information system, its security is very important to ensure the security of the entire information system. In the prior art, although the DBMS has added many security measures on the basis of the operating system (OperationSystem, abbreviated as OS), such as permission-based access control, etc., the OS and DBMS still lack effective protection measures for the database files themselves. . Experienced hackers will "detour" and directly use OS tools to steal or tamper with the contents of database files. This security risk is called a "secret channel" leading to the DBMS, and the harm it brings is difficult for general database users to perceive. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 王珊任永杰冯玉张文亮白芸王建华
Owner 北京人大金仓信息技术股份有限公司
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