CN113157982A - Electronic material evidence tracing method based on block chain - Google Patents

Electronic material evidence tracing method based on block chain Download PDF

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CN113157982A
CN113157982A CN202110347303.0A CN202110347303A CN113157982A CN 113157982 A CN113157982 A CN 113157982A CN 202110347303 A CN202110347303 A CN 202110347303A CN 113157982 A CN113157982 A CN 113157982A
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evidence
material evidence
electronic
information
physical
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王宇骁
熊倩
王学春
王政
张志亮
王枫
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Chongqing Fengyun Jihui Intelligent Technology Co ltd
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Chongqing Fengyun Jihui Intelligent Technology Co ltd
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Abstract

The invention relates to the technical field of electronic evidence, in particular to an electronic material evidence tracing method based on a block chain, which comprises the following steps: s1, storing the material evidence by using the material evidence bag provided with the material evidence authentication code, reading the material evidence authentication code, and inputting material evidence information and a staff authentication code of a sponsor; s2, adding a timestamp to the material evidence information, generating a corresponding material evidence check code according to the timestamp, the material evidence authentication code and the personnel authentication code to obtain an electronic material evidence, and establishing an electronic material evidence database; s3, generating a chain data pool according to the electronic material evidence database, and integrating data in the chain data pool in content and behavior to obtain a tracing data pool; and S4, performing serial-parallel processing on the data in the tracing data pool to obtain the data after the serial-parallel processing, and tracing the behavior and the content of the electronic material evidence through the data after the serial-parallel processing to obtain an evidence chain of the electronic material evidence. The invention solves the technical problem that the prior art cannot effectively trace the source of the electronic material evidence.

Description

Electronic material evidence tracing method based on block chain
Technical Field
The invention relates to the technical field of electronic evidence, in particular to an electronic material evidence tracing method based on a block chain.
Background
Electronic physical evidence refers to electronic information data and its appendant, which is recorded electromagnetically or photoelectrically in a medium carrier and plays a role in proving the fact. Namely, the physical entity carrying the electronic material evidence information data is detained and sealed, and the electronic information data in the physical entity is extracted and fixed by adopting a special technology to form the electronic material evidence. The electronic material evidence is beneficial to investigation and processing and timely solves the appeal, but the fragmentation of the electronic material evidence data enables the serial-parallel connection and identification of an evidence chain to be weak, and potential hidden clues are difficult to find.
In contrast, chinese patent CN108804280A discloses an intelligent terminal online electronic evidence tracing system and method, wherein the system includes a persistence tracing data reporting terminal, an electronic evidence chain tracing data reporting terminal, a server, a visualization platform, and a tracing platform; the server receives the persistence tracing data and the electronic evidence chain tracing data of the persistence tracing data reporting terminal and the electronic evidence chain tracing data reporting terminal, generates a tracing data pool, performs serial-parallel processing on data in the tracing data pool, and pushes the serial-parallel processed data to the visualization platform and the tracing platform.
In the technical scheme, all links are traced and information is pushed, and how to handle the relevant evidence chain can be immediately judged through the tracing result, so that an evidence which can be recognized by a public inspection company is formed. However, for the electronic physical evidence, due to factors such as operator operation errors of a manager, complex evidence obtaining site and the like, careless collection or preservation of the electronic physical evidence is easily caused, so that the electronic physical evidence is difficult to effectively trace due to incomplete recording or careless omission, and therefore, the electronic physical evidence can not be used as an effective evidence in court trial, and adverse effects are caused on the promotion of case situations and the crime and quantity of criminals. That is, the prior art cannot effectively trace the source of the electronic material evidence.
Disclosure of Invention
The invention provides a block chain-based electronic material evidence tracing method, which solves the technical problem that the prior art cannot effectively trace the source of electronic material evidence.
The basic scheme provided by the invention is as follows: the electronic material evidence tracing method based on the block chain comprises the following steps:
s1, storing the material evidence by using the material evidence bag provided with the material evidence authentication code, reading the material evidence authentication code, and inputting material evidence information and a staff authentication code of a manager;
s2, adding a timestamp to the material evidence information, generating a corresponding material evidence check code according to the timestamp, the material evidence authentication code and the personnel authentication code to obtain an electronic material evidence, and establishing an electronic material evidence database;
s3, generating a chain data pool according to the electronic material evidence database, and integrating data in the chain data pool in content and behavior to obtain a tracing data pool;
and S4, performing serial-parallel processing on the data in the tracing data pool to obtain serial-parallel processed data, and tracing the behavior and content of the electronic physical evidence through the serial-parallel processed data to obtain an evidence chain of the electronic physical evidence.
The working principle and the advantages of the invention are as follows:
(1) the material evidence bag provided with the material evidence authentication code is used for storing the material evidence, so that the corresponding relation among the material evidence bag, the material evidence authentication code and the material evidence information can be ensured, and the corresponding traceability between the material evidence information and the material evidence packaged in the material evidence bag is realized; meanwhile, a corresponding material evidence check code is generated according to the timestamp, the material evidence authentication code and the personnel authentication code, an electronic material evidence database is established, and the association record and traceability between the electronic material evidence and the sponsor are better ensured.
(2) Through carrying out cluster and parallel processing to the data of traceing back in the data pond, carry out accurate traceing back to action and the content two sides of electron material evidence, can obtain the evidence chain of electron material evidence, be favorable to carrying out the information cluster and parallel of electron material evidence, avoided electron material evidence to appear "information island" to improve the analysis efficiency of electron material evidence, reduced human cost and resource occupation.
The invention realizes the corresponding traceability between the material evidence information and the material evidence packaged in the material evidence bag, ensures the associated record and the traceability between the electronic material evidence and the sponsor, and solves the technical problem that the prior art can not effectively trace the source of the electronic material evidence.
Further, in S4, the behavior and content of the electronic physical evidence are traced back through the data after serial-parallel processing, and an evidence chain of the electronic physical evidence is obtained, which specifically includes: extracting case clues, time and places in the electronic material evidence; carrying out serial-parallel connection on the electronic material evidence according to the data after serial-parallel processing; scattered electronic physical evidence is filled into a complete and ordered evidence chain according to case clues, time and places.
Has the advantages that: through the mode, the data in the traceability data pool are analyzed and summarized, scattered electronic physical evidence is supplemented into a complete and ordered evidence chain according to case clues, time and places, and the complete traceability process of the electronic physical evidence can be obtained.
Further, in S2, generating record information according to the physical evidence information, specifically including: carrying out credibility verification on the material evidence information through the block chain to obtain a corresponding credibility verification result; and if the credibility verification result is passed, generating the record information of the material evidence through the block chain based on the material evidence information.
Has the advantages that: by the mode, the credibility of the material evidence information is verified, the record information of the material evidence is generated when the credibility verification result is passed, the related conditions of the material evidence can be recorded in time, and the subsequent tracing and the verification are facilitated.
Further, in S2, performing credibility verification on the material evidence information through the block chain specifically includes: acquiring event correlation information of related historical events of the material evidence through a block chain; and carrying out credibility verification on the material evidence information based on the event correlation information to obtain a corresponding credibility verification result.
Has the advantages that: by the method, the event correlation information of the related historical events of the material evidence is obtained, the credibility of the material evidence information is verified based on the event correlation information, the time correlation information is considered, and compared with the single related historical events, the credibility verification result obtained is high in accuracy.
Further, in S1, after the physical evidence is stored in the physical evidence bag provided with the physical evidence authentication code, the physical right information of the physical evidence is acquired, the physical right code is generated through the block chain based on the physical right information, and the physical right information is entered.
Has the advantages that: through the mode, the material evidence, the material right information and the material right code are corresponded, so that the material right attribution of the material evidence can be rapidly and timely confirmed and the material right person of the material evidence can be contacted when needed.
Further, in S1, after the material evidence is stored in the material evidence bag provided with the material evidence authentication code, the material right update information of the material evidence is acquired: receiving a material right transfer request of the material evidence, wherein the material right transfer request comprises a material evidence code and a transfer identifier, and determining material right updating information of the material evidence based on the transfer identifier.
Has the advantages that: by the mode, after the material right transfer request of the material evidence is received, the material right updating information of the material evidence is determined based on the transfer identification, so that the property change of the material evidence can be monitored, and the error probability of electronic material evidence collection is reduced.
Further, in S2, after the electronic physical evidence is obtained and the electronic physical evidence database is established, the electronic physical evidence in the electronic physical evidence database is classified, catalogued and filed.
Has the advantages that: by the method, the electronic material evidence in the electronic material evidence database is classified, catalogued and archived, information retrieval and statistical analysis are supported, and meanwhile, verification is facilitated.
Drawings
Fig. 1 is a flowchart of an embodiment of an electronic material evidence tracing method based on a block chain according to the present invention.
Detailed Description
The following is further detailed by the specific embodiments:
example 1
An embodiment is substantially as shown in figure 1, comprising:
s1, storing the material evidence by using the material evidence bag provided with the material evidence authentication code, reading the material evidence authentication code, and inputting material evidence information and a staff authentication code of a manager;
s2, adding a timestamp to the material evidence information, generating a corresponding material evidence check code according to the timestamp, the material evidence authentication code and the personnel authentication code to obtain an electronic material evidence, and establishing an electronic material evidence database;
s3, generating a chain data pool according to the electronic material evidence database, and integrating data in the chain data pool in content and behavior to obtain a tracing data pool;
and S4, performing serial-parallel processing on the data in the tracing data pool to obtain serial-parallel processed data, and tracing the behavior and content of the electronic physical evidence through the serial-parallel processed data to obtain an evidence chain of the electronic physical evidence.
The specific implementation process is as follows:
firstly, the material evidence bag provided with the material evidence authentication code is used for storing the material evidence, the material evidence authentication code is read, and material evidence information and the personnel authentication code of a manager are input. In the embodiment, the material evidence authentication code and the personnel authentication code are both stored in the material evidence information acquisition terminal; the material evidence authentication codes are bar codes or two-dimensional codes generated by an internal encoder, each material evidence authentication code corresponds to one material evidence bag, and for example, the material evidence authentication codes are printed on the material evidence bags or made into labels pasted on the material evidence bags; the personal identification code is a number established by an internal personal identification coding mechanism, for example, a work number of each worker in the system. After the material evidence is placed in the material evidence bag, the material evidence information acquisition terminal reads the material evidence authentication code, and a manager inputs material evidence information and the worker authentication code of the manager at the material evidence information acquisition terminal, wherein the material evidence information comprises basic traceability information such as a case name, a material evidence name, an extraction place, a reconnaissance unit, a witness, a holder, an acquirer, a packager, a delivery unit and the like. After the material evidence information acquisition terminal finishes the acquisition of material evidence information, the material evidence information is sent to the server.
And then, adding a time stamp to the material evidence information, generating a corresponding material evidence check code according to the time stamp, the material evidence authentication code and the personnel authentication code to obtain the electronic material evidence, and establishing an electronic material evidence database. In this embodiment, a corresponding material evidence check code is generated according to the timestamp, the material evidence authentication code and the personnel authentication code, and the hash check code is adopted and used as a tracing anti-counterfeiting code of the material evidence information to check whether the material evidence information is tampered or not, so that the electronic material evidence is obtained. That is, the obtained electronic material evidence comprises material evidence information, a time stamp, a material evidence authentication code, a personnel authentication code and a generated material evidence check code. After the electronic material evidence is obtained, an electronic material evidence database is established, and the electronic material evidence in the electronic material evidence database is classified, catalogued and filed so as to support information retrieval and statistical analysis.
And then, generating a chain data pool according to the electronic material evidence database, and integrating data in the chain data pool from the aspects of content and behavior to obtain a tracing data pool. In this embodiment, the electronic physical evidence of the same case in the electronic physical evidence database is extracted to form a chain data pool; and integrating the data in the chain data pool from the content and the behavior, namely integrating the content and the behavior of the electronic material evidence in the tracing data pool with the electronic material evidence related to the case to obtain the tracing data pool.
And finally, performing serial-parallel processing on the data in the tracing data pool to obtain the data after the serial-parallel processing, and tracing the behavior and the content of the electronic material evidence through the data after the serial-parallel processing to obtain an evidence chain of the electronic material evidence. In this embodiment, information similar to case clues, time, places and the like in the electronic physical evidence is extracted, the electronic physical evidence is subjected to serial-parallel processing according to the information and the data after serial-parallel processing, and then scattered electronic physical evidence is supplemented into a complete and ordered evidence chain according to the case clues, the time and the places. By the mode, the data in the tracing data pool are analyzed and summarized, and the complete tracing process of the electronic material evidence can be obtained.
Example 2
The difference from embodiment 1 is that after the electronic material evidence is obtained, record information is generated according to material evidence information, that is, the material evidence information is subjected to credibility verification through the block chain to obtain a corresponding credibility verification result, for example, event-related information of a relevant historical event of the material evidence is obtained through the block chain, and credibility verification is performed on the material evidence information based on the event-related information to obtain a corresponding credibility verification result: and if the credibility verification result is passed, generating material evidence recording information through the block chain based on the material evidence information. By the method, the credibility of the material evidence information is verified, the related conditions of the material evidence can be recorded in time, and the subsequent tracing and verification are facilitated. After the material evidence is stored in the material evidence bag provided with the material evidence authentication code, material right information of the material evidence is obtained, a material right code is generated through a block chain based on the material right information, and the material right information is input, wherein the material right information is that, for example, the material evidence A is an automobile and is registered under three persons, and the material right code B is generated through the block chain. Meanwhile, the property right updating information of the material evidence is also acquired, for example, the fourth lee proposes that the material right transfer request is that the material evidence A is an automobile and is mortared to the fourth lee, and the material right transfer request comprises a material evidence code and a transfer identifier, wherein the material evidence code is generated according to the registration information registered by the automobile mortgage, and the transfer identifier is that the transfer is approved to the fourth lee or not approved to the fourth lee; and determining the material right updating information of the material evidence based on the transfer identification: if the transfer identifier is 'agreeing to transfer to Li IV', the property right updating information is 'material evidence A is an automobile and agreeing to transfer to Li IV', and if the transfer identifier is 'not agreeing to transfer to Li IV', the property right updating information is 'material evidence A is an automobile and disagreeing to transfer to Li IV'. In this embodiment, a timestamp is added to the material right information, the material right change information, and the material evidence information, and a corresponding material evidence check code is generated according to the timestamp, the material evidence authentication code, and the personnel authentication code to obtain the electronic material evidence. The material evidence, the material right information and the material right code are corresponded, so that the material right attribution of the material evidence can be rapidly and timely confirmed; meanwhile, the method is beneficial to monitoring the property change of the material evidence, and the error probability of electronic material evidence collection is reduced.
Example 3
The difference from embodiment 2 is only that in this embodiment, the material evidence is stored in the work site and the image is captured simultaneously. Specifically, a technical idea of "shooting first and then deleting" is adopted, that is, a work site video is collected first, and then a work site image which does not meet the requirement in the work site video is deleted. Specifically, in the present embodiment, first, a video of a work site is collected by a camera; then, extracting the image data of the working site image with the preset frame number in the working site video, and detecting whether the image data of the working site image with the preset frame number in the working site video changes or not by a picture identification technology: if the image data of the work site image with the preset frame number changes, generating an evidence electronic stamp according to the work site video, and storing the work site video and the evidence electronic stamp; on the contrary, if the image data of the work site image with the preset frame number does not change, deleting the work site image with the preset frame number, generating an evidence electronic stamp according to the work site video after deleting the work site image with the preset frame number, and storing the work site video and the evidence electronic stamp. In this embodiment, if the image data of the working site image with the preset number of frames does not change, the level deletion is performed according to a preset rule, for example, when the preset number of frames is 0 to 5 frames, the level deletion is performed, and 5 frames are deleted; when the preset frame number is 5-10 frames, executing secondary deletion, and deleting 10 frames; when the preset frame number is 10-15 frames, executing three-level deletion, and deleting 15 frames; and so on according to similar rules. The preset frame number is 4 frames for example, that is, the image data of the working field image of 4 frames is not changed, so that first-level deletion needs to be executed, and 5 frames are deleted; therefore, in addition to deleting the working field image with the preset frame number of 4 frames, it is necessary to additionally delete 1 frame before the working field image of the 4 frames or 1 frame before the working field image of the 4 frames. In this way, useless work site images can be effectively reduced.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or before the priority date of the application, so that those skilled in the art can understand the common general knowledge in the field of the invention, and have the ability to apply routine experimentation before that date. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (7)

1. The electronic material evidence tracing method based on the block chain is characterized by comprising the following steps:
s1, storing the material evidence by using the material evidence bag provided with the material evidence authentication code, reading the material evidence authentication code, and inputting material evidence information and a staff authentication code of a sponsor;
s2, adding a timestamp to the material evidence information, generating a corresponding material evidence check code according to the timestamp, the material evidence authentication code and the personnel authentication code to obtain an electronic material evidence, and establishing an electronic material evidence database;
s3, generating a chain data pool according to the electronic material evidence database, and integrating data in the chain data pool in content and behavior to obtain a tracing data pool;
and S4, performing serial-parallel processing on the data in the tracing data pool to obtain the data after the serial-parallel processing, and tracing the behavior and the content of the electronic material evidence through the data after the serial-parallel processing to obtain an evidence chain of the electronic material evidence.
2. The method for tracing to the source of the electronic physical evidence based on the block chain as claimed in claim 1, wherein in S4, the behavior and the content of the electronic physical evidence are traced back through the data after serial-parallel processing, so as to obtain the evidence chain of the electronic physical evidence, specifically comprising: extracting case clues, time and places in the electronic material evidence; carrying out serial-parallel connection on the electronic material evidence according to the data after serial-parallel processing; scattered electronic physical evidence is filled into a complete and ordered evidence chain according to case clues, time and places.
3. The block chain-based electronic physical evidence tracing method of claim 2, wherein in S2, further generating record information according to physical evidence information, specifically comprising: carrying out credibility verification on the material evidence information through the block chain to obtain a corresponding credibility verification result; and if the credibility verification result is passed, generating material evidence recording information through the block chain based on the material evidence information.
4. The blockchain-based electronic physical evidence source tracing method according to claim 3, wherein in the step S2, the verifying the credibility of the physical evidence information through the blockchain specifically comprises: acquiring event correlation information of related historical events of the material evidence through a block chain; and carrying out credibility verification on the material evidence information based on the event correlation information to obtain a corresponding credibility verification result.
5. The block chain-based electronic physical evidence tracing method of claim 4, wherein in S1, after the physical evidence is stored in the physical evidence bag provided with the physical evidence authentication code, the physical right information of the physical evidence is obtained, the physical right code is generated through the block chain based on the physical right information, and the physical right information is entered.
6. The block chain-based electronic physical evidence tracing method of claim 5, wherein in S1, after the physical evidence is stored in the physical evidence bag with the physical evidence authentication code, the material right update information of the physical evidence is acquired: receiving a material right transfer request of the material evidence, wherein the material right transfer request comprises a material evidence code and a transfer identifier, and determining material right updating information of the material evidence based on the transfer identifier.
7. The blockchain-based electronic physical evidence source tracing method according to claim 6, wherein in step S2, after the electronic physical evidence is obtained and the electronic physical evidence database is established, the electronic physical evidence in the electronic physical evidence database is classified, catalogued and filed.
CN202110347303.0A 2021-03-31 2021-03-31 Electronic material evidence tracing method based on block chain Pending CN113157982A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113553347A (en) * 2021-08-09 2021-10-26 恒安嘉新（北京）科技股份公司 Data processing method, device and equipment based on block chain and storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113553347A (en) * 2021-08-09 2021-10-26 恒安嘉新（北京）科技股份公司 Data processing method, device and equipment based on block chain and storage medium
CN113553347B (en) * 2021-08-09 2024-03-22 恒安嘉新（北京）科技股份公司 Block chain-based data processing method, device, equipment and storage medium

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