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Database tamper-proofing method and system based on block chain technology

A database and blockchain technology, applied in digital data protection and other directions, can solve problems such as disasters

Active Publication Date: 2021-01-12
COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Data loss due to information leakage and other reasons will cause disaster results

Method used

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  • Database tamper-proofing method and system based on block chain technology
  • Database tamper-proofing method and system based on block chain technology
  • Database tamper-proofing method and system based on block chain technology

Examples

Experimental program
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Embodiment Construction

[0019] figure 1 It is a schematic structural diagram of a database anti-tampering system based on blockchain technology provided by an embodiment of the present invention. Such as figure 1 As shown, the bottom layer is the database table data to be protected.

[0020] In the indication layer, the indication function is defined, and a single blockchain data structure is constructed for the data records stored in the underlying database table. When a data record is added to the database table, for example, the record number currently added to the database table is 200, the indicator function takes the record with the current number 200 as input, and calculates the record number that the current record will point to, assuming that the calculation result of the indicator function returns The record number of is 30, that is, record 30 is the previous record of record 200, and record 200 will point to record 30. Continue to add other records, and use the same one-point function t...

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PUM

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Abstract

The invention relates to a database tamper-proofing method and system based on a block chain technology, and the method comprises the following steps: calculating the ID of a to-be-pointed record of acurrent record based on an indication function through taking the ID of the current newly added record as a parameter when one new record is added to a database table, and enabling the pointed recordto be called a previous record, creating a pointing relationship between the current record and the previous record; when more records are added, a single block chain data structure is constructed based on the same indication function; expanding the single indication function, and for a newly added data record, using the plurality of indication functions to calculate and obtain the IDs of a plurality of previous records by taking the ID of the current record as a parameter; creating a pointing relationship between the current record and a plurality of previous records, and constructing a multi-blockchain data structure based on a plurality of indication functions; and securing database data.

Description

technical field [0001] The present invention relates to database tamper-proof technology, in particular to a database tamper-proof method and system based on block chain technology. Background technique [0002] Data is the core asset of an information system. Data loss due to information leakage and other reasons will cause disaster results. The traditional method of protecting data is data encryption. In addition to data encryption-based methods of securing data, blockchain-based methods can also secure database data. A key feature of blockchain technology is the consensus mechanism for the validity of transactions that occur between individuals who do not trust each other without the control of a central mechanism. [0003] Commonly used blockchain technologies include consensus mechanism, Hash algorithm, digital signature technology, point-to-point technology, workload proof mechanism, time stamp technology, etc. Among them, the Hash algorithm is a commonly used algo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/64
CPCG06F21/64Y02D10/00
Inventor 詹科张巍陆忠华代闯闯
Owner COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI
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