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Blockchain evidence storing and obtaining method and device

A blockchain and chain certificate storage technology, which is applied in the field of evidence collection methods and devices, and blockchain certificate storage, can solve the problems that the originality of evidence files cannot be guaranteed.

Inactive Publication Date: 2018-11-30
BEIJING QIHOO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention solves the technical problem that the originality of the extracted evidence files cannot be guaranteed by providing a block chain evidence storage and evidence collection method and device

Method used

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  • Blockchain evidence storing and obtaining method and device
  • Blockchain evidence storing and obtaining method and device
  • Blockchain evidence storing and obtaining method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0155] Implementation Mode 1: After obtaining the evidence files extracted by the management node from the local storage area, each forensic node can report the evaluation elements of the received evidence files, or it can be the source evidence that the evidence files obtained at the verification office have not been tampered with The evaluation elements of the source evidence documents are reported after the document.

Embodiment approach 2

[0156] Embodiment 2: The source evidence file is disclosed in a read-only manner to each node connected to the blockchain, so that each certificate depositing node connected to the blockchain reports the evaluation elements of the source evidence file.

[0157] In the specific implementation process, the evaluation elements can take many forms, which are explained below:

[0158] Form 1: The evaluation element is the scoring value of the source evidence file. Specifically, the scoring value range can be set, and the forensic node can score the obtained source evidence file within the scoring value range, so that the management node can get each forensic node. The scoring value of the source evidence file. For example, the scoring value range can be set to 0-5, or can be set to 0-10, or can be set to 0-100. Of course, the scoring value range can also be set to other ranges according to actual needs. Correspondingly, the preset evaluation condition is the score value threshold...

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Abstract

The invention discloses a blockchain evidence storing and obtaining method and device. The method comprises the steps that a source evidence file provided by a user is saved to a local storage area ofan evidence storing node; the source evidence file is processed to generate a cochain file fingerprint of the source evidence file; the cochain file fingerprint is written into a blockchain, whereinthe cochain file fingerprint is used for verifying a target evidence file acquired by an evidence obtaining node from the local storage area and corresponding to the source evidence file, and the evidence obtaining node accesses the blockchain. The technical problem that the originality of an extracted evidence file cannot be guaranteed is solved.

Description

technical field [0001] The present invention relates to the technical field of blockchain, in particular to a method and device for depositing and obtaining evidence in blockchain. Background technique [0002] Ordinary certificate storage is to store electronic data in the form of backup on the server of your own organization or lease. Since electronic data is very easy to be damaged, it is easy to cause flaws, breakpoints, incomplete evidence and other faults during the transmission process. This not only requires high technical requirements for the third-party evidence storage institutions, but also reduces the number of transfers and handovers in the generation, curing, storage, storage and subsequent use of electronic data. If these electronic data are stored in leased On the server, the number of data transfers will inevitably increase, the risk of data tampering will also increase, and the integrity will also be destroyed. Moreover, third-party certificate depository...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60G06F21/62
CPCG06F21/602G06F21/6218G06F2221/2107
Inventor 张安梁超许坚孟之杰柏盼
Owner BEIJING QIHOO TECH CO LTD
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