A Secure Distributed Database Interaction System Applicable to Mobile Positioning System

Abstract

The invention discloses a safe distributed database interaction method suitable for a mobile positioning system, including seven modules; wherein the rest data sending and receiving and attribution area distinction module receives client data and determines attribution by improving the trie tree algorithm; read The write-splitting local database module designs a statistics-based read-write separation algorithm to perform read-write separation and the establishment of temporary tables; the local key negotiation module designs a key negotiation protocol based on pre-shared keys and generates session keys; The key negotiation module interacts with the local key negotiation module to generate each session key; the local data encryption and decryption and integrity protection module is responsible for the encryption and decryption of local interactive data by improving the SM4 encryption algorithm; the attribution data encryption and decryption and integrity The protection module realizes the encryption and decryption of the attribution interactive data by designing and improving the SM4 encryption algorithm; the read-write separation attribution database module realizes the reading and writing of the attribution database based on the statistical read-write separation algorithm.

Description

technical field [0001] The invention relates to the field of computer network communication, information security and distributed database, in particular to a safe distributed database interaction system suitable for a mobile positioning system. 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 that exist on the market. It cannot provide security services, and cannot ensure data confidentiality and integrity while also ensuring high efficiency. . The distributed database studied in the patent of the present invention is connected to the open Internet. Due to the openness of the Internet, various attacks threaten the security of the distributed system database. In recent years, data security issues have occurred frequently. For example, in the Ctrip vulnerability incident in 2014, any third party could traverse and download Ctrip’s security p...

AI Technical Summary

Problems solved by technology

[0017] In order to solve the above problems, the present invention provides a secure distributed database interaction system 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; Aiming at the problem that localized processing cannot be realized, a temporary data table is established to realize localized processing for non-local users

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