CN111200501A - Electronic evidence storage service system based on block chain - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
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- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/60—Digital content management, e.g. content distribution
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
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Abstract
The invention discloses an electronic evidence storage service system based on a block chain, which comprises an account module, an evidence storage module, an evidence management module, an evidence discharge module and a verification module. The account module is used for account creation, real-name authentication and private key management; the evidence storing module is used for collecting evidence storing data and storing the collected evidence storing data to the block chain; the evidence management module is used for displaying the evidence storage data of the user and recording the relevant operation of the user on the evidence storage data; the evidence obtaining module is used for calling evidence storing data of a user, forming an evidence report and providing checking, verifying and downloading of the evidence report; the verification module is used for verifying the certificate storage data, comparing and verifying the certificate storage data to be verified submitted by the user with the certificate storage data in the judicial certificate storage service system, and outputting and displaying verification results. The system makes full use of the characteristics of the block chain, can improve the evidence storage and evidence discharge efficiency, realizes the tamper resistance of the electronic evidence, and improves the judicial effectiveness of the electronic evidence storage.
Description
Technical Field
The invention relates to the field of application of block chains, in particular to an electronic evidence storage service system based on a block chain.
Background
The block chain technology is used as a novel decentralized distributed account book technology and has the characteristics of traceability and non-tampering. On the whole block chain, each block chain node has a complete account book, data among all nodes are ensured to be consistent through a consensus algorithm, namely the data written into the block chain needs all the nodes on the chain to be completed through consensus, and the data can be packaged and written after the consensus is successful, so that each transaction data on the chain is ensured to be confirmed by all the participants and to be credible. Therefore, the data stored on the blockchain has the characteristic of being not tampered, and can be used for trusted storage of the data.
With the rapid development of the internet and the mobile internet, a great deal of economic activities are transferred from off-line to on-line, the lives of people are gradually digitalized and on-line, so that more and more disputes and cases occur on-line, and evidences related to the cases and the disputes often exist in the form of electronic data. However, the electronic data has certain difficulties in being used as electronic evidence because the electronic data has the following characteristics:
1. the electronic data has extremely strong reproducibility and extremely low copying cost, and can be accurately copied rapidly without damage;
2. the electronic data does not have time traces, the carrier of the electronic data can be changed along with the lapse of time, but the data does not change, so that the time sequence of comparing the two pieces of electronic data is not available, and the transition history of the electronic data is not known;
3. electronic data is easily tampered and lost.
In order to solve the above problems of the electronic evidence, a corresponding block chain electronic evidence storing service is derived, that is, electronic data is collected and solidified through a block chain, the block chain is enabled to meet the requirements of laws on the electronic evidence by utilizing the characteristics that the block chain is not falsifiable and is traceable, and the solidified electronic data can be used as the electronic evidence.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an electronic evidence storage service system based on a block chain, which can realize the acquisition and fixation of electronic data, so that the electronic data can be used as electronic evidence.
The purpose of the invention is realized by the following technical scheme: an electronic evidence storage service system based on a block chain comprises an account module, an evidence storage module, an evidence management module, an evidence discharge module and a verification module;
the account module comprises an identity management unit and a private key binding unit, wherein the identity management unit is used for acquiring and managing user identity information and distributing a corresponding block chain account to a user according to the user identity information; the private key binding unit is used for generating a user private key, downloading the private key, checking user identity information and block chain account information and generating the user private key; the private key download is used for verifying the user identity information, downloading the private key to the local of the user and associating the private key with the public key address.
The evidence storage module comprises an evidence acquisition unit and an evidence curing unit; the evidence collection unit is used for verifying the user identity information and the evidence storage desire, collecting the evidence storage data submitted by the user, identifying the evidence storage data according to the evidence type selected by the user, and recording the time information and the user identity information for submitting the evidence storage data. The evidence solidifying unit is used for evidence Hash generation and evidence chaining, and carrying out Hash calculation on the evidence storing data collected by the evidence collecting unit to generate evidence Hash; the evidence uplink is used for writing the generated evidence Hash into the blockchain for evidence solidification and generating a time stamp for the evidence Hash.
The evidence management module comprises an evidence display unit and an evidence sharing unit. The evidence display unit is used for displaying the evidence storing data of the user in a list form. The evidence sharing unit is used for generating a sharing link and an extraction code and sharing the sharing link and the extraction code to the user.
The evidence module comprises an evidence report generating unit and an evidence report display unit. The evidence report generating unit is used for collecting evidence storage data and generating an evidence report. The evidence report display unit is used for displaying the evidence report generated by the evidence report generating unit.
The checking module comprises an evidence checking unit and a result display unit. The evidence verification unit is used for verifying the evidence, acquiring Hash submitted by a user in a Hash verification mode, comparing the Hash with Hash stored in the block chain database and outputting a verification result; in a file checking mode, acquiring a file submitted by a user, performing Hash calculation on the file, comparing a calculation result with Hash stored in a block chain database, and outputting a checking result; under the content verification mode, acquiring the content submitted by a user, comparing the content with the content stored in the block chain database and outputting a verification result; and under the mode of original text query, collecting Hash and an extraction code submitted by a user, and retrieving corresponding evidence content in the database. The result display unit is used for displaying the verification result, and the verification result is displayed in the form of an information frame in the modes of Hash verification, file verification and content verification; in the original text query mode, the query result is displayed in the form of a table and a picture.
Further, the user identity information comprises personal user identity information and enterprise user identity information.
Further, the evidence types include file evidence and content evidence.
Further, the electronic certificate storing service method of the system comprises the following steps:
(1) and the user fills in the identity information through the account module, and the account module generates a block chain account and binds the block chain account with the identity information of the user.
(2) And the user stores the certificate through the certificate storage module. The card storage module verifies the real identity and the card storage desire of the user, if the user does not pass the card storage module, the card storage fails, and if the user passes the card storage module, the card storage module performs Hash calculation on the card storage content and stores the Hash to the bottom layer area block chain.
(3) The user identity information and the certificate storing willingness verification mode are public and private key signature verification and signature verification, when a user uses the certificate storing module to store the certificate, the user needs to upload the own private key, the user private key is used for signing the user information and the certificate storing information to form a digital signature, the digital signature is decrypted by a user public key stored by the system, the user identity information is compared with the account module identity information, if the comparison is consistent, the real identity verification is passed, otherwise, the verification fails.
(4) After the data is written into the bottom layer block chain, the user succeeds in the verification. The user can download, check and verify the deposit certificate.
(5) And after the evidence is successfully stored, the evidence obtaining module calls evidence storing related data to form an evidence report, the evidence report is associated with the evidence, and the evidence report calculates Hash and stores the Hash to the block chain. The user can check and download the evidence report corresponding to the evidence deposit, and the verification of the evidence report can be carried out through the verification module.
(6) After the certificate is successfully stored, the user can check the certificate and the formed evidence report through the checking module. And uploading a certificate storage or evidence report to be verified by the user, carrying out Hash calculation on the certificate storage or evidence report uploaded by the user by the system by using a Hash algorithm, matching the calculated Hash with the Hash stored on the block chain, if the matching is successful, the verification is passed, otherwise, the verification fails.
The invention has the following beneficial effects:
1. and the electronic evidence can be efficiently collected, including file type evidence and content evidence.
2. The electronic evidence is prevented from being tampered by the block chain technology, and the judicial effectiveness of the electronic evidence is improved.
3. The evidence management module realizes convenient management of the electronic evidence.
Drawings
FIG. 1 is a basic architecture diagram of a blockchain-based electronic evidence preservation service system;
FIG. 2 is a flow chart of the operation of the present system
Detailed Description
In order that the objects and effects of the invention will become more apparent, the invention will be further described with reference to the accompanying drawings.
According to the block chain-based electronic card storage service system, a user registers the electronic card storage service system and binds a user account, a block chain account and a user identity after corresponding identity authentication is carried out. The user can subsequently initiate content storage and file storage through the account, and the user needs to verify the identity intention during initiation. The system collects the relevant electronic evidence submitted by the user, carries out Hash calculation on the evidence and then records the evidence into the block chain. In addition, the system generates a unique evidence report for the electronic deposit certificate. The user can check the electronic evidence, download an evidence package or check. The user can view, download and verify the evidence report.
Fig. 1 is an architecture diagram of an electronic evidence storage service system based on a block chain according to the present invention, the system includes: the system comprises an account module, a certificate storage module, an evidence management module, a certificate discharge module and a verification module;
the account module comprises an identity management unit and a private key binding unit, wherein the identity management unit is used for acquiring and managing user identity information, distributing corresponding block chain accounts for the user according to the user identity information, and establishing an association relation among the block chain accounts, a system account and a user identity; the user identity information comprises personal user identity information and enterprise user identity information. The private key binding unit is used for generating a user private key, downloading the private key, checking user identity information and block chain account information and generating the user private key; the private key download is used for verifying the user identity information, downloading the private key to the local of the user and associating the private key with the public key address.
The evidence storage module comprises an evidence acquisition unit and an evidence curing unit; the evidence collection unit is used for verifying the identity information and the evidence storage willingness of the user, collecting the evidence storage data submitted by the user, and storing the evidence and the content according to the evidence type selected by the user. And identifying the deposit data, and recording the time information and the user identity information of submitting the deposit data. The evidence solidifying unit is used for evidence Hash generation and evidence chaining, and carrying out Hash calculation on the evidence storing data collected by the evidence collecting unit to generate evidence Hash; the evidence uplink is used for writing the generated evidence Hash into the blockchain for evidence solidification and generating a time stamp for the evidence Hash.
The evidence management module comprises an evidence display unit and an evidence sharing unit. The evidence display unit is used for displaying the evidence storing data of the user in a list form. The evidence sharing unit is used for generating a sharing link and an extraction code and sharing the sharing link and the extraction code to the user.
The evidence module comprises an evidence report generating unit and an evidence report display unit. The evidence report generating unit is used for collecting evidence storage data and generating an evidence report. The evidence report display unit is used for displaying the evidence report generated by the evidence report generating unit.
The checking module comprises an evidence checking unit and a result display unit. The evidence verification unit is used for verifying the evidence, acquiring Hash submitted by a user in a Hash verification mode, comparing the Hash with Hash stored in the block chain database and outputting a verification result; in a file checking mode, acquiring a file submitted by a user, performing Hash calculation on the file, comparing a calculation result with Hash stored in a block chain database, and outputting a checking result; under the content verification mode, acquiring the content submitted by a user, comparing the content with the content stored in the block chain database and outputting a verification result; and under the mode of original text query, collecting Hash and an extraction code submitted by a user, and retrieving corresponding evidence content in the database. The result display unit is used for displaying the verification result, and the verification result is displayed in the form of an information frame in the modes of Hash verification, file verification and content verification; in the original text query mode, the query result is displayed in the form of a table and a picture.
Fig. 2 is a flow chart of the judicial evidence-storing service of the system, and the specific process is as follows:
(1) and the user fills in the identity information through the account module, and the account module generates a block chain account and binds the block chain account with the identity information of the user.
(2) And the user stores the certificate through the certificate storage module. The card storage module verifies the real identity and the card storage desire of the user, if the user does not pass the card storage module, the card storage fails, and if the user passes the card storage module, the card storage module performs Hash calculation on the card storage content and stores the Hash to the bottom layer area block chain.
(3) The user identity information and the certificate storing willingness verification mode are public and private key signature verification and signature verification, when a user uses the certificate storing module to store the certificate, the user needs to upload the own private key, the user private key is used for signing the user information and the certificate storing information to form a digital signature, the digital signature is decrypted by a user public key stored by the system, the user identity information is compared with the account module identity information, if the comparison is consistent, the real identity verification is passed, otherwise, the verification fails.
(4) After the data is written into the bottom layer block chain, the user succeeds in the verification. The user can download, check and verify the deposit certificate.
(5) And after the evidence is successfully stored, the evidence obtaining module calls evidence storing related data to form an evidence report, the evidence report is associated with the evidence, and the evidence report calculates Hash and stores the Hash to the block chain. The user can check and download the evidence report corresponding to the evidence deposit, and the verification of the evidence report can be carried out through the verification module.
(6) After the certificate is successfully stored, the user can check the certificate and the formed evidence report through the checking module. And uploading a certificate storage or evidence report to be verified by the user, carrying out Hash calculation on the certificate storage or evidence report uploaded by the user by the system by using a Hash algorithm, matching the calculated Hash with the Hash stored on the block chain, if the matching is successful, the verification is passed, otherwise, the verification fails.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and although the invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes in the form and details of the embodiments may be made and equivalents may be substituted for elements thereof. All modifications, equivalents and the like which come within the spirit and principle of the invention are intended to be included within the scope of the invention.
Claims (4)
1. An electronic evidence storage service system based on a block chain is characterized by comprising an account module, an evidence storage module, an evidence management module, an evidence discharge module and a verification module;
the account module comprises an identity management unit and a private key binding unit, wherein the identity management unit is used for acquiring and managing user identity information and distributing a corresponding block chain account to a user according to the user identity information; the private key binding unit is used for generating a user private key, downloading the private key, checking user identity information and block chain account information and generating the user private key; the private key download is used for verifying the user identity information, downloading the private key to the local of the user and associating the private key with the public key address.
The evidence storage module comprises an evidence acquisition unit and an evidence curing unit; the evidence collection unit is used for verifying the user identity information and the evidence storage desire, collecting the evidence storage data submitted by the user, identifying the evidence storage data according to the evidence type selected by the user, and recording the time information and the user identity information for submitting the evidence storage data. The evidence solidifying unit is used for evidence Hash generation and evidence chaining, and carrying out Hash calculation on the evidence storing data collected by the evidence collecting unit to generate evidence Hash; the evidence uplink is used for writing the generated evidence Hash into the blockchain for evidence solidification and generating a time stamp for the evidence Hash.
The evidence management module comprises an evidence display unit and an evidence sharing unit. The evidence display unit is used for displaying the evidence storing data of the user in a list form. The evidence sharing unit is used for generating a sharing link and an extraction code and sharing the sharing link and the extraction code to the user.
The evidence module comprises an evidence report generating unit and an evidence report display unit. The evidence report generating unit is used for collecting evidence storage data and generating an evidence report. The evidence report display unit is used for displaying the evidence report generated by the evidence report generating unit.
The checking module comprises an evidence checking unit and a result display unit. The evidence verification unit is used for verifying the evidence, acquiring Hash submitted by a user in a Hash verification mode, comparing the Hash with Hash stored in the block chain database and outputting a verification result; in a file checking mode, acquiring a file submitted by a user, performing Hash calculation on the file, comparing a calculation result with Hash stored in a block chain database, and outputting a checking result; under the content verification mode, acquiring the content submitted by a user, comparing the content with the content stored in the block chain database and outputting a verification result; and under the mode of original text query, collecting Hash and an extraction code submitted by a user, and retrieving corresponding evidence content in the database. The result display unit is used for displaying the verification result, and the verification result is displayed in the form of an information frame in the modes of Hash verification, file verification and content verification; in the original text query mode, the query result is displayed in the form of a table and a picture.
2. The electronic credit card service system of claim 1 wherein the user identity information includes personal user identity information and business user identity information.
3. The electronic certification services system of claim 1, wherein the evidence types include file certification and content certification.
4. The electronic certificate of deposit service system of claim 1, characterized in that the electronic certificate of deposit service method of the system is:
(1) and the user fills in the identity information through the account module, and the account module generates a block chain account and binds the block chain account with the identity information of the user.
(2) And the user stores the certificate through the certificate storage module. The card storage module verifies the real identity and the card storage desire of the user, if the user does not pass the card storage module, the card storage fails, and if the user passes the card storage module, the card storage module performs Hash calculation on the card storage content and stores the Hash to the bottom layer area block chain.
(3) The user identity information and the certificate storing willingness verification mode are public and private key signature verification and signature verification, when a user uses the certificate storing module to store the certificate, the user needs to upload the own private key, the user private key is used for signing the user information and the certificate storing information to form a digital signature, the digital signature is decrypted by a user public key stored by the system, the user identity information is compared with the account module identity information, if the comparison is consistent, the real identity verification is passed, otherwise, the verification fails.
(4) After the data is written into the bottom layer block chain, the user succeeds in the verification. The user can download, check and verify the deposit certificate.
(5) And after the evidence is successfully stored, the evidence obtaining module calls evidence storing related data to form an evidence report, the evidence report is associated with the evidence, and the evidence report calculates Hash and stores the Hash to the block chain. The user can check and download the evidence report corresponding to the evidence deposit, and the verification of the evidence report can be carried out through the verification module.
(6) After the certificate is successfully stored, the user can check the certificate and the formed evidence report through the checking module. And uploading a certificate storage or evidence report to be verified by the user, carrying out Hash calculation on the certificate storage or evidence report uploaded by the user by the system by using a Hash algorithm, matching the calculated Hash with the Hash stored on the block chain, if the matching is successful, the verification is passed, otherwise, the verification fails.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112016920A (en) * | 2020-08-19 | 2020-12-01 | 云账户技术(天津)有限公司 | Integrated service platform, income certificate management method, device and medium |
| CN112153039A (en) * | 2020-09-21 | 2020-12-29 | 中国电子科技网络信息安全有限公司 | Data storage certificate sharing method based on block chain |
| CN112184442A (en) * | 2020-09-29 | 2021-01-05 | 西安电子科技大学 | Criminal case evidence circulation record management method and system based on block chain |
| CN112488715A (en) * | 2020-12-17 | 2021-03-12 | 欧冶链金再生资源有限公司 | Block chain storage method in scrap steel industry |
| CN112685795A (en) * | 2020-12-31 | 2021-04-20 | 树根互联技术有限公司 | Digital deposit certificate creating method, digital deposit certificate verifying method and digital deposit certificate system |
| CN112988901A (en) * | 2021-04-06 | 2021-06-18 | 湖北央中巨石信息技术有限公司 | Evidence-storing data chaining method based on block chain |
| CN113343296A (en) * | 2021-06-17 | 2021-09-03 | 上海万向区块链股份公司 | Internet of things data acquisition system, method, medium and equipment based on privacy calculation |
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| CN113779621A (en) * | 2021-08-24 | 2021-12-10 | 浙江数秦科技有限公司 | Data sharing method based on block chain |
| CN114338665A (en) * | 2021-12-01 | 2022-04-12 | 浪潮软件股份有限公司 | Declaration material tamper-proofing system based on block chain |
| CN114666353A (en) * | 2022-03-16 | 2022-06-24 | 南京邮电大学 | Electronic access evidence obtaining system and method based on block chain |
| CN115037744A (en) * | 2022-05-10 | 2022-09-09 | 北京溪塔科技有限公司 | Block chain certificate circulation method and device, storage medium and management platform |
| CN116166736A (en) * | 2023-04-20 | 2023-05-26 | 中国信息通信研究院 | Block chain data uplink method, device and medium based on application program interface |
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| CN112988901A (en) * | 2021-04-06 | 2021-06-18 | 湖北央中巨石信息技术有限公司 | Evidence-storing data chaining method based on block chain |
| CN113343296B (en) * | 2021-06-17 | 2023-01-17 | 上海万向区块链股份公司 | Internet of things data acquisition system, method, medium and equipment based on privacy calculation |
| CN113343296A (en) * | 2021-06-17 | 2021-09-03 | 上海万向区块链股份公司 | Internet of things data acquisition system, method, medium and equipment based on privacy calculation |
| CN113673949A (en) * | 2021-08-16 | 2021-11-19 | 重庆易保全网络科技有限公司 | Notarization system suitable for internet data management |
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| CN113779621B (en) * | 2021-08-24 | 2023-08-22 | 浙江数秦科技有限公司 | Data sharing method based on block chain |
| CN114338665A (en) * | 2021-12-01 | 2022-04-12 | 浪潮软件股份有限公司 | Declaration material tamper-proofing system based on block chain |
| CN114666353A (en) * | 2022-03-16 | 2022-06-24 | 南京邮电大学 | Electronic access evidence obtaining system and method based on block chain |
| CN115037744A (en) * | 2022-05-10 | 2022-09-09 | 北京溪塔科技有限公司 | Block chain certificate circulation method and device, storage medium and management platform |
| CN115037744B (en) * | 2022-05-10 | 2023-12-08 | 北京溪塔科技有限公司 | Method and device for circulation of blockchain certificates, storage medium and management platform |
| CN116166736A (en) * | 2023-04-20 | 2023-05-26 | 中国信息通信研究院 | Block chain data uplink method, device and medium based on application program interface |
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