Safe distributed database interaction method suitable for mobile positioning system

Abstract

The invention discloses a secure distributed database interaction method suitable for a mobile positioning system. The secure distributed database interaction method comprises seven modules, wherein arest data transceiving and attribution region division module is used for receiving client data and determining an attribution through an improved trie tree algorithm; a read-write separation local database module designs a statistical-based read-write separation algorithm to carry out read-write separation and temporary table establishment; a local key agreement module is used for designing a key agreement protocol on the basis of the pre-shared key and generating a session key; an attribution secret key negotiation module interacts with the local secret key negotiation module to generate asession secret key each time; a local data encryption and decryption and integrity protection module is responsible for encryption and decryption of local interaction data through an improved SM4 encryption algorithm; an attribution data encryption and decryption and integrity protection module is used for realizing encryption and decryption of attribution interaction data by designing and improving an SM4 encryption algorithm; and a read-write separation attribution database module is used for realizing read-write of the attribution database based on a statistical read-write separation algorithm.

Description

Technical field [0001] The present invention relates to the field of computer network communication, information security and distributed database fields, in particular to a safe distributed database interaction method suitable for mobile positioning systems. Background technique [0002] The database used by the mobile positioning system targeted by this application has a common feature with the distributed tracking and positioning systems on the market. It cannot provide security services and cannot guarantee data confidentiality and integrity while ensuring high efficiency. . The distributed database studied in the patent of the invention is connected to the open Internet. Due to the openness of the Internet, various attack behaviors threaten the security of the distributed system database. In recent years, data security issues have frequently occurred. For example, in the Ctrip vulnerability incident in 2014, any third party can traverse and download Ctrip’s secure payment l...

AI Technical Summary

Problems solved by technology

[0017] In order to solve the above problems, the present invention provides a safe distributed database interaction method suitable for mobile positioning systems, which encrypts the transmitted data by designing an improved SM4 algorithm; for the database without read-write separation and low efficiency, a statistically-based The read-write separation algorithm efficiently reads and writes the database; in view of the interaction between databases without identity authentication and the inability to realize one-time encryption, a key exchange protocol based on pre-shared keys is designed, so that each session communication uses a session key Encryption; To solve the problem that localization processing cannot be realized, a temporary table is established to realize localization processing for non-local users

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