CN107809423A - A kind of electronic evidence data transmission method, system and equipment - Google Patents
A kind of electronic evidence data transmission method, system and equipment Download PDFInfo
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- CN107809423A CN107809423A CN201710986404.6A CN201710986404A CN107809423A CN 107809423 A CN107809423 A CN 107809423A CN 201710986404 A CN201710986404 A CN 201710986404A CN 107809423 A CN107809423 A CN 107809423A
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- Prior art keywords
- evidence
- small documents
- file
- check value
- electronic evidence
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/30—Network architectures or network communication protocols for network security for supporting lawful interception, monitoring or retaining of communications or communication related information
- H04L63/308—Network architectures or network communication protocols for network security for supporting lawful interception, monitoring or retaining of communications or communication related information retaining data, e.g. retaining successful, unsuccessful communication attempts, internet access, or e-mail, internet telephony, intercept related information or call content
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
- H04L67/5651—Reducing the amount or size of exchanged application data
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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
- H04L9/3236—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 using cryptographic hash functions
- H04L9/3239—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 using cryptographic hash functions involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Technology Law (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses a kind of electronic evidence data transmission method, system and equipment.Methods described includes：Client of collecting evidence obtains electronic evidence file；The electronic evidence file cutting of acquisition is some small documents by client of collecting evidence, it is determined that the check value of check value and electronic evidence file corresponding to each small documents；Each small documents and its check value of corresponding check value and electronic evidence file are sent to evidence obtaining server by evidence obtaining client, and small documents are verified so as to server check value according to corresponding to small documents of collecting evidence and electronic evidence file verified according to the check value of electronic evidence file.The correct transmission of electronic evidence data can be ensured, ensure that electronic evidence will not be tampered, improve the authenticity and reliability of the data of transmission.
Description
Technical field
Save technical field from damage the present invention relates to electronic evidence, the electronics card in more particularly to a kind of electronic evidence solidification process
According to data transmission method, system and equipment.
Background technology
Electronic evidence exists very with jural traditional evidence type in the form of expression, preserving type and security etc.
Big difference.Electronic evidence is the product of electronic technology, is deposited dependent on technologies such as computer technology, network technology, memory technologies
, and can exist in the form of text image, picture, sound, picture etc. and propagate in a network.Electronic evidence is substantially one
" 0 " and " 1 " that heap is processed into by coding rule, these coded datas be present in the form of sound, light, electricity, magnetic etc. media it
On, be can not direct viewing incorporeity, do not see, can not touch, only can be just shown as by specific equipment and technology
Macroscopic tangible content.During this results in electronic evidence storage, transmission and use, easily broken by external
Changed beyond recognition or even disappearance that is bad, being tampered it.Therefore, electronic evidence is generally more fragile, in the mistake used as evidence
It is difficult to be investigated, assert its authenticity in journey.
Based on this, electronic evidence saves ageing identification electronic evidence as the electronic data epoch, legitimacy and true from damage
Property effective means, today of high speed development in internet, due to the hysteresis quality of relevant law, electronic data is saved from damage or one
Newborn industry.During electronic evidence is saved from damage, how effectively to solidify electronic evidence after obtaining electronic evidence, demonstrate,prove electronics
According to effectively being saved from damage, how to ensure the correct transmission of data in electronic evidence solidification process, do not distorted by increase and decrease, so as to protect
Demonstrate,prove the reliability of electronic evidence data transfer to be solidified, so as to get electronic evidence data to be solidified it is true, effectively, so as to
Enable electronic evidence as judicial evidence use when ensure its authenticity and actual effect, then as electronic evidence solidify
During technical problem urgently to be resolved hurrily.
The content of the invention
In view of the above problems, it is proposed that the present invention so as to provide one kind overcome above mentioned problem or at least in part solve on
State a kind of electronic evidence data transmission method, system and the equipment of problem.
In a first aspect, the embodiment of the present invention provides a kind of electronic evidence data transmission method, including：
Client of collecting evidence obtains electronic evidence file；
The electronic evidence file cutting of acquisition is some small documents by client of collecting evidence, it is determined that school corresponding to each small documents
Test the check value of value and electronic evidence file；
Each small documents and its check value of corresponding check value and electronic evidence file are sent to by evidence obtaining client to be taken
Server is demonstrate,proved, server check value according to corresponding to small documents is verified to small documents and according to electronic evidence to collect evidence
The check value of file verifies to electronic evidence file.
In some optional embodiments, the evidence obtaining client obtains electronic evidence file, specifically includes：
Client of collecting evidence instructs according to the evidence obtaining of user starts forensics process；
The evidence obtaining mode selected according to user, the electronic evidence text of user's acquisition request is obtained using record screen or screenshotss mode
Part.
In some optional embodiments, the electronic evidence file cutting of acquisition is some small texts by the evidence obtaining client
Part, it is determined that the check value of check value and electronic evidence file corresponding to each small documents, is specifically included：
Client of collecting evidence carries out cutting, by electronic evidence file according to the small documents size of setting to electronic evidence file
Cutting is the small documents of some specified sizes；Or the cutting quantity according to setting, cutting is carried out to electronic evidence file, by electronics
Instrument of evidence cutting is to specify the small documents of cutting quantity；Or type and/or size according to electronic evidence file, select cutting
Rule, by the cutting of electronic evidence file it is some small documents according to the segmentation rules of selection；
Client of collecting evidence and the hash values and meter that each small documents are calculated using selected Hash hash value calculating methods
Calculate the hash values of electronic evidence file.
In some optional embodiments, the above method, in addition to：
Evidence obtaining server is received what the small documents verification for having the obstructed out-of-date transmission of any one small documents verification did not passed through to lead to
Know message；Resend according to the notification message received to evidence obtaining server and verify unsanctioned small documents and corresponding verification
Value, or all small documents and each self-corresponding check value and electricity are resend to evidence obtaining server according to the notification message received
The check value of the sub- instrument of evidence；And/or
Evidence obtaining server is received in the electronic evidence file verification of the obstructed out-of-date transmission of electronic evidence file verification not pass through
Notification message, according to the notification message received to evidence obtaining server resend all small documents and each self-corresponding verification
The check value of value and electronic evidence file.
Second aspect, the embodiment of the present invention provide a kind of electronic evidence data transmission method, including：
Server of collecting evidence receives the check value for the electronic evidence file got that evidence obtaining client is sent and the electronics
The small documents and its corresponding check value that the instrument of evidence is cut into；
Evidence obtaining server is verified using corresponding check value to each small documents, is passed through when each small documents verify
When, all small documents are synthesized into complete electronic evidence file；
Evidence obtaining server is carried out using the check value of the electronic evidence file received to the electronic evidence file after synthesis
Verification, the electronic evidence file after verification passes through after storage synthesis.
In some optional embodiments, the evidence obtaining server carries out school using corresponding check value to each small documents
Test, specifically include：
The hash values of the small documents received are calculated, by corresponding to the hash values being calculated and the small documents received
Hash values are matched；If identical, verification passes through, and otherwise verifies and does not pass through；
In some optional embodiments, the check value using the electronic evidence file received is to the electricity after synthesis
The sub- instrument of evidence is verified, and is specifically included：
The hash values of the electronic evidence file of synthesis are calculated, by the hash values being calculated and the electronic evidence received text
The hash values of part are matched；If identical, verification passes through, and otherwise verifies and does not pass through.
In some optional embodiments, the above method, in addition to：
When having, the verification of any one small documents is obstructed out-of-date, and the notice not passed through to evidence obtaining client transmission small documents verification disappears
Breath；Receive the unsanctioned small documents of verification and the corresponding verification that evidence obtaining client sends over according to the notification message received
Value, or receive all small documents and each self-corresponding check value that evidence obtaining client sends over according to the notification message received
With the check value of electronic evidence file；And/or
When electronic evidence file verification is obstructed out-of-date, to evidence obtaining client send electronic evidence file verification do not pass through it is logical
Know message, receive all small documents and each self-corresponding verification that evidence obtaining client sends over according to the notification message received
The check value of value and electronic evidence file.
The third aspect, the embodiment of the present invention provide a kind of evidence obtaining client, including：
Evidence acquisition module, for obtaining electronic evidence file；
File cutting module, for being some small documents by the electronic evidence file cutting of acquisition, it is determined that each small documents
The check value of corresponding check value and electronic evidence file；
Data transmission blocks, for each small documents and its check value of corresponding check value and electronic evidence file to be sent out
Evidence obtaining server is given, server check value according to corresponding to small documents is verified to small documents and according to electricity to collect evidence
The check value of the sub- instrument of evidence verifies to electronic evidence file.
In some optional embodiments, the evidence acquisition module, it is specifically used for：
Instructed according to the evidence obtaining of user and start forensics process；
The evidence obtaining mode selected according to user, the electronic evidence text of user's acquisition request is obtained using record screen or screenshotss mode
Part.
In some optional embodiments, the file cutting module, it is specifically used for：
According to the small documents size of setting, cutting is carried out to electronic evidence file, is some by the cutting of electronic evidence file
Specify the small documents of size；Or the cutting quantity according to setting, cutting is carried out to electronic evidence file, electronic evidence file is cut
It is divided into the small documents of specified cutting quantity；Or type and/or size according to electronic evidence file, segmentation rules are selected, according to
The cutting of electronic evidence file is some small documents by the segmentation rules of selection；
And the hash values of each small documents are calculated using selected Hash hash value calculating methods and calculate electronic evidence
The hash values of file.
In some optional embodiments, above-mentioned evidence obtaining client, in addition to：
Exception processing module, for receiving evidence obtaining server in the small text for thering is any one small documents to verify obstructed out-of-date transmission
The notification message that part verification does not pass through；And/or receive electricity of the evidence obtaining server in the obstructed out-of-date transmission of electronic evidence file verification
The notification message that sub- instrument of evidence verification does not pass through；Accordingly,
The sending module, it is additionally operable to examine the notification message that does not pass through according to the small documents that receive to evidence obtaining server
Resend and verify unsanctioned small documents and corresponding check value, or the notice not passed through is examined according to the small documents received
Message resends all small documents and the check value of each self-corresponding check value and electronic evidence file to evidence obtaining server；
And/or all small texts are resend to evidence obtaining server according to the notification message that the electronic evidence inspection of document received does not pass through
Part and the check value of each self-corresponding check value and electronic evidence file.
Fourth aspect, the embodiment of the present invention provide a kind of evidence obtaining server, including：
Receiving module, the check value and the electricity of the electronic evidence file got sent for receiving evidence obtaining client
Some small documents and its corresponding check value that the sub- instrument of evidence is cut into；
Correction verification module, each small documents are verified for check value corresponding to use；And use the electricity received
Electronic evidence file after the check value of the sub- instrument of evidence synthesizes to the synthesis module verifies；
Synthesis module, for when each small documents verify by when, all small documents are synthesized into complete electronics and demonstrate,proved
According to file；
Memory module, pass through the electronic evidence file after rear storage synthesis for electronic evidence file verification.
In some optional embodiments, the file cutting module, correction verification module, it is specifically used for：
The hash values of the small documents received are calculated, by the hash values being calculated and the small documents received to corresponding
Hash values matched；If identical, verification passes through, and otherwise verifies and does not pass through；And
The hash values of the electronic evidence file of synthesis are calculated, by the hash values being calculated and the electronic evidence received text
The hash values of part are matched；If identical, verification passes through, and otherwise verifies and does not pass through.
In some optional embodiments, above-mentioned evidence obtaining server, in addition to：
Abnormal notification module, when having, the verification of any one small documents is obstructed out-of-date, and small documents verification is sent to evidence obtaining client
The notification message not passed through；And/or when electronic evidence file verification is obstructed out-of-date, to collecting evidence, client sends electronic evidence file
Verify the notification message not passed through；Accordingly
The receiving module, is additionally operable to：Receive the notice that evidence obtaining client does not pass through according to the small documents checking received
The unsanctioned small documents of verification and corresponding check value that message sends over, or reception evidence obtaining client are small according to what is received
All small documents and each self-corresponding check value and electronic evidence file that the notification message that file verification does not pass through sends over
Check value；And/or receive the notification message that evidence obtaining client does not pass through according to the electronic evidence file verification received and send
All small documents and the check value of each self-corresponding check value and electronic evidence file to come over.
The embodiment of the present invention also provides a kind of electronic evidence data transmission system, including：Above-mentioned evidence obtaining client and above-mentioned
Evidence obtaining server.
The beneficial effect of above-mentioned technical proposal provided in an embodiment of the present invention comprises at least：
It is some small documents by the cutting of electronic evidence file after evidence obtaining client gets electronic evidence file, so as to more
Facilitate the transmission of big file, avoid because file is excessive and bust this, greatly reduce big file uploading failure possibility；It is logical
Cross after setting test value, evidence obtaining server to receive these small documents for each small documents, it is small that each is verified according to check value
File, ensure the correct transmission of each small documents, be not tampered with, improve the accuracy and reliability of file transmission；All
Small documents all verify pass through in the case of, small documents are reintegrated and synthesize complete electronic evidence file, to the electricity of synthesis
The sub- instrument of evidence is verified again, ensures the correctness of the electronic evidence file of synthesis, so as to more effectively ensure that acquisition
Electronic evidence file correct upload, content will not be tampered, improve data transfer in electronic evidence solidification process it is correct, can
By property, it ensure that the electronic evidence data of solidification are true, effectively.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the flow chart of electronic evidence data transmission method in the embodiment of the present invention one；
Fig. 2 is the workflow diagram of evidence obtaining client in the embodiment of the present invention one；
Fig. 3 is the workflow diagram of evidence obtaining server in the embodiment of the present invention one；
Fig. 4 is the specific implementation flow chart of electronic evidence data transmission method in the embodiment of the present invention two；
Fig. 5 is the structural representation of electronic evidence data transmission system in the embodiment of the present invention；
Fig. 6 is the structural representation of evidence obtaining client in the embodiment of the present invention；
Fig. 7 is the structural representation of evidence obtaining server in the embodiment of the present invention.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.
In order to solve easily to be distorted present in prior art in electronic evidence solidification process by increase and decrease, so as to be difficult to ensure that
The problem of authenticity and validity of electronic evidence, the embodiment of the present invention provide a kind of electronic evidence data transmission method, can
Ensure the correct transmission of electronic evidence data, ensure that electronic evidence will not be tampered, improve the reliability of the data of transmission.
Embodiment one
The embodiment of the present invention one provides a kind of electronic evidence data transmission method, and its flow is as shown in figure 1, including following step
Suddenly：
Step S101：Client of collecting evidence obtains electronic evidence file.
Client of collecting evidence instructs according to the evidence obtaining of user starts forensics process；The evidence obtaining mode selected according to user, use
Record screen or screenshotss mode obtain the electronic evidence file of user's acquisition request.
The e-files such as document, picture, audio frequency and video, digital certificate, computer program, webpage, blog, micro-blog, friend
The information of the network platforms such as circle, mhkc, Dropbox issue, user's registration information, authentication information, electronic transaction record, communication
The information such as record, login daily record, and the network english teaching such as SMS, Email, instant messaging, communication group are logical
Letter information, etc., it can serve as electronic evidence data.When user has electronic evidence data to need to save from damage, to evidence obtaining client
Send evidence obtaining instruction, and selection record screen mode or screenshotss mode as needed.The evidence obtaining that evidence obtaining client receives user refers to
Start forensics process after order, the record screen or screenshotss evidence obtaining mode selected according to user collects electronic data and produce electronic data
Main information, environmental information, procedural information etc., obtain electronic evidence file.
Step S102：The electronic evidence file cutting of acquisition is some small documents by client of collecting evidence, it is determined that each small text
The check value of check value corresponding to part and electronic evidence file.
The electronic evidence file cutting of acquisition is some small documents by client of collecting evidence, and can specifically be selected in following manner
One kind realize.
Mode one：Evidence obtaining client sets the size of small documents, such as each text according to the operation demand of system in advance
Part is sized such that 1M, according to the small documents size of setting, cutting is carried out to electronic evidence file, by electronic evidence file cutting
For the small documents of some specified sizes.
Mode two：Evidence obtaining client sets the cutting quantity of small documents according to the operation demand of system in advance, such as sets
It is set to each electronic evidence file and is cut into 100 small documents, according to the cutting quantity of setting, electronic evidence file is cut
Point, it is to specify the small documents of cutting quantity by the cutting of electronic evidence file.
Mode three：According to the type and/or size of electronic evidence file, segmentation rules are selected, are advised according to the cutting of selection
It is then some small documents by the cutting of electronic evidence file.Such as：For video file, according to the small documents size of setting, to electricity
The sub- instrument of evidence carries out cutting；For the picture file of screenshotss, cutting is carried out according to picture number；Again for example, for larger
File, according to the small documents size of setting, cutting is carried out to electronic evidence file；, can be without cutting for less file
Point, etc..
Client of collecting evidence calculates the hash values of each small documents using selected Hash (hash) value calculating method, as right
Answer the check value of small documents；Calculate the hash values of electronic evidence file, the check value as electronic evidence file.
Step S103：Client of collecting evidence is by each small documents and its check value of corresponding check value and electronic evidence file
It is sent to evidence obtaining server.
Each small documents and its corresponding check value, the check value of electronic evidence file are sent to evidence obtaining by evidence obtaining client
Server, so that server check value according to corresponding to small documents of collecting evidence is verified to small documents and according to electronic evidence text
The check value of part verifies to electronic evidence file.
Step S104：The check value for the electronic evidence file got that server reception evidence obtaining client of collecting evidence is sent,
The small documents and its corresponding check value that electronic evidence file is cut into.
Server of collecting evidence receives evidence obtaining client and sends data message, and electronic evidence is obtained from the data message received
The small documents and its corresponding check value that the check value of file, the electronic evidence file are cut into.
Step S105：Evidence obtaining server check value according to corresponding to small documents verifies to small documents.
Evidence obtaining server calculates the hash values of each small documents received using selected Hash hash value calculating methods,
Hash values corresponding to the hash values being calculated and the small documents received are matched, if identical, verification passes through,
Continue to verify next small documents；Otherwise, verification is not by the small documents and its check value that record verification does not pass through, continuing school
Next small documents are tested, until having verified all small documents received.
If whole small documents are all verified and passed through, continue step S106.
Accordingly, if the verification of any small documents is not if, evidence obtaining server sends verification to evidence obtaining client
The notification message not passed through, evidence obtaining client receive electronics of the evidence obtaining server in the obstructed out-of-date transmission of electronic evidence file verification
The notification message that instrument of evidence verification does not pass through.
Optionally, the notification message that client of collecting evidence does not pass through according to the small documents verification received is thought highly of to evidence obtaining service
New send verifies unsanctioned small documents and corresponding check value, and evidence obtaining server is according to the unsanctioned small text of the verification received
Part and corresponding check value verify again as stated above, until verification passes through or resend the number threshold that number exceedes setting
Value.
Optionally, the notification message that client of collecting evidence does not pass through according to the small documents verification received is thought highly of to evidence obtaining service
All small documents and the check value of each self-corresponding check value and electronic evidence file are newly sent, evidence obtaining server receives according to new
To all small documents and the check value of each self-corresponding check value and electronic evidence file verify again as stated above, until
Verification passes through or resend the frequency threshold value that number exceedes setting.
Step S106：All small documents are synthesized complete electronic evidence file by evidence obtaining server.
Whole small documents all verify pass through after, all small documents are synthesized complete electronic evidence text by evidence obtaining server
Part.Optionally, can be synthesized according to the mode of cutting using corresponding synthesis mode.
Step S107：Server of collecting evidence is carried out according to the check value of electronic evidence file to the electronic evidence file after synthesis
Verification.
Server of collecting evidence calculates the hash of the electronic evidence file after synthesis using selected Hash hash value calculating methods
Value, hash values corresponding to the hash values being calculated and the electronic evidence file received are matched, if identical,
Verification passes through, and continues step S108；Otherwise, verification does not pass through.
It is obstructed out-of-date to verify, and the notice that evidence obtaining server does not pass through to evidence obtaining client transmission electronic evidence file verification disappears
Breath, evidence obtaining client receive evidence obtaining server the obstructed out-of-date transmission of electronic evidence file verification electronic evidence file verification not
The notification message passed through, sent out again to evidence obtaining server according to the notification message that the electronic evidence file verification received does not pass through
All small documents and the check value of each self-corresponding check value and electronic evidence file are sent, continues step S104- steps S107.
Step S108：Electronic evidence file after server storage of collecting evidence synthesis.
Collect evidence server to the electronic evidence file verification after synthesis by rear, preserve the electronic evidence file after synthesis,
Electronic evidence file acquisition, solidification upload procedure terminate.
In the above-mentioned electronic evidence data transmission method that the embodiment of the present invention one provides, by the way that the electronic evidence of acquisition is literary
Part cutting ensure that electronic data solidification uploads for some small documents and to small documents and original electron instrument of evidence twin check
During effective transmission, do not distorted by increase and decrease, realize its authenticity and reliability.
The acquisition and its solidification of above-mentioned electronic evidence file upload, and are the interactions by collect evidence client and server of collecting evidence
Come what is realized, its respective workflow is as follows for work.
Fig. 2 is the workflow diagram of evidence obtaining client in electronic evidence data transmission procedure.
Step S201：Start forensics process.
When user there are electronic evidence data to need to save from damage, evidence obtaining instruction is sent to evidence obtaining client, and select as needed
Record screen mode or screenshotss mode.Evidence obtaining client starts forensics process after receiving the evidence obtaining instruction of user.
Step S202：Obtain electronic evidence file.
According to user select record screen or screenshotss evidence obtaining mode collect electronic data and produce electronic data main information,
Environmental information, procedural information etc., obtain electronic evidence file.
Step S203：It is some small documents by the electronic evidence file cutting of acquisition, it is determined that school corresponding to each small documents
Test the check value of value and electronic evidence file.
The electronic evidence file of acquisition is pressed setting small documents size, sets the rule of small documents quantity by client of collecting evidence,
Or segmentation rules are selected according to the type and/or size of electronic evidence file, it is according to the segmentation rules of selection that electronic evidence is literary
Part cutting is some small documents.
The hash values of each small documents are calculated using selected Hash hash value calculating methods, the school as corresponding small documents
Test value；Calculate the hash values of electronic evidence file, the check value as electronic evidence file.
Step S204：Each small documents and its check value of corresponding check value and electronic evidence file are sent to evidence obtaining
Server, so that server check value according to corresponding to small documents of collecting evidence is verified to small documents and according to electronic evidence text
The check value of part verifies to electronic evidence file.
Step S205：The notification message that verification according to receiving does not pass through resends corresponding letter to evidence obtaining server
Breath.
The notification message that small documents verification according to receiving does not pass through resends verification to evidence obtaining server and not passed through
Small documents and corresponding check value.
Optionally, resend according to the notification message that the small documents verification received does not pass through to evidence obtaining server all
Small documents and the check value of each self-corresponding check value and electronic evidence file.And/or
The notification message that electronic evidence file verification according to receiving does not pass through resends all to evidence obtaining server
Small documents and the check value of each self-corresponding check value and electronic evidence file.
Fig. 3 is the workflow diagram of evidence obtaining server in electronic evidence data transmission procedure.
Step S301：Receive each small documents and its corresponding check value and electronic evidence file that evidence obtaining client is sent
Check value.
Step S302：Check value verifies to small documents according to corresponding to small documents.
The hash values of each small documents received are calculated using selected Hash hash value calculating methods, will be calculated
Hash values and the small documents that receive corresponding to hash values matched, if identical, verification passes through.
Step S303：All small documents are synthesized into complete electronic evidence file.
If whole small documents are all verified and passed through, all small documents are synthesized into complete electronic evidence file.
Step S304：The electronic evidence file after synthesis is verified according to the check value of electronic evidence file.
The hash values of the electronic evidence file after synthesis are calculated using selected Hash hash value calculating methods, will be calculated
To hash values and the electronic evidence file that receives corresponding to hash values matched, if identical, verification passes through.
Step S305：Electronic evidence file after storage synthesis.
To the electronic evidence file verification after synthesis by rear, the electronic evidence file after storage synthesis.
In the above method, if any small documents or electronic evidence file verification are by the way that transmission verification does not pass through logical
Know message, verified again according to the information that evidence obtaining client is resend.
Embodiment two
The embodiment of the present invention two provides a kind of specific implementation process of electronic evidence data transmission method, its flow such as Fig. 4
It is shown, comprise the following steps：
Step S401：Start forensics process.
Evidence obtaining client starts forensics process after receiving the evidence obtaining instruction of user.
Step S402：Obtain electronic evidence file.
The record screen or screenshotss evidence obtaining mode that evidence obtaining client selects according to user collect electronic data, while collect generation electricity
The main information of subdata, environmental information, procedural information etc., the integrality of electronic data is realized, ensure that electronic data produces ring
Border and reducible with that can trace, the acquisition electronic evidence file of process.
Step S403：Cutting is some small documents.
The electronic evidence file of acquisition is some small documents by selected regular cutting by client of collecting evidence.
Step S404：It is determined that hash values corresponding to each small documents.
Client of collecting evidence calculates the hash values of each small documents using selected Hash calculation method, as corresponding small documents
Check value.Wherein, hash value calculating methods can select Secure Hash Algorithm (Secure Hash Algorithm, SHA1)
Algorithm, Message Digest Algorithm 5 (Message Digest Algorithm, MD5) algorithm can be selected, can also be selected
Other algorithms.
Step S405：Determine the hash values of electronic evidence file.
Client of collecting evidence calculates the hash values of electronic evidence file using selected Hash hash value calculating methods, is used as it
Check value.
Step S406：Send each small documents and its corresponding hash values and the hash values of electronic evidence file.
Step S407：The small documents received are verified.
Evidence obtaining server verifies to the small documents received, if upchecking, performs step S410；If verification is obstructed
Cross, perform step S408.
Hash value calculating method of the evidence obtaining server selection as evidence obtaining client calculates the small documents received
Hash values, such as：SHA1 algorithms can be selected, MD5 algorithms can be selected, other algorithms can also be selected.
Compare calculating to the small documents of the hash values with receiving hash values it is whether identical, identical, then verification is logical
Cross, otherwise verify and do not pass through.
Step S408：Send the notification message that verification does not pass through.
If small documents verification is by the way that and/or electronic evidence file verification after synthesis is by the way that evidence obtaining server is to taking
Card client sends the notification message that verification does not pass through.
Step S409：The notification message that verification according to receiving does not pass through resends corresponding information.
The notification message that evidence obtaining client does not pass through according to the small documents verification received is resend to evidence obtaining server
Verify unsanctioned small documents and corresponding hash values；Or according to the small documents notification message that does not pass through of verification received to taking
Card server resends all small documents and each self-corresponding hash values and the hash values of electronic evidence file.
The notification message that evidence obtaining client does not pass through according to the electronic evidence file verification received is thought highly of to evidence obtaining service
Newly send all small documents and each self-corresponding hash values and the hash values of electronic evidence file
Step S410：All small documents are synthesized into complete electronic evidence file.
If whole small documents are all verified and passed through, all small documents are synthesized complete electronics and demonstrate,proved by evidence obtaining server
According to file.
Step S411：Server of collecting evidence determines the hash values of the electronic evidence file after synthesis.
Step S412：Evidence obtaining server verifies to the electronic evidence file after synthesis.
If upchecking, step S413 is performed；If verification is not by performing step S408.
Step S413：Electronic evidence file after storage synthesis.
Electronic evidence file verification after synthesis is by rear, the electronic evidence file after evidence obtaining server storage synthesis.
Based on same inventive concept, the embodiment of the present invention also provides a kind of electronic evidence data transmission system.The system
Structure as shown in figure 5, including：Client 501 of collecting evidence and evidence obtaining server 502.
Evidence obtaining client 501, for obtaining electronic evidence file；It is some small texts by the electronic evidence file cutting of acquisition
Part, it is determined that the check value of check value and electronic evidence file corresponding to each small documents；By each small documents and its corresponding school
The check value for testing value and electronic evidence file is sent to evidence obtaining server, and to collect evidence, server verifies according to corresponding to small documents
Value is verified to small documents and electronic evidence file is verified according to the check value of electronic evidence file.
Collect evidence server 502, for receive evidence obtaining client send the electronic evidence file got check value and
The small documents and its corresponding check value that electronic evidence file is cut into；School is carried out to each small documents using corresponding check value
Test, when each small documents verify by when, all small documents are synthesized into complete electronic evidence file；Use what is received
The check value of electronic evidence file verifies to the electronic evidence file after synthesis, the electronics after verification passes through after storage synthesis
The instrument of evidence.
Optionally, evidence obtaining client 501 is additionally operable to receive the notification message that the verification that evidence obtaining server is sent does not pass through；Root
The notification message not passed through according to the evidence obtaining server verification received resends the corresponding information in school to evidence obtaining server.
Optionally, evidence obtaining server 502 is additionally operable to verify the obstructed out-of-date notification message for sending verification and not passing through, according to taking
The new information that card client is sent verifies again.
The structure of above-mentioned evidence obtaining client 501 as shown in fig. 6, including：Evidence acquisition module 601, file cutting module 602
With data transmission blocks 603.
Evidence acquisition module 601, for obtaining electronic evidence file.
File cutting module 602, for being some small documents by the electronic evidence file cutting of acquisition, it is determined that each small text
The check value of check value corresponding to part and electronic evidence file.
Data transmission blocks 603, for by the verification of each small documents and its corresponding check value and electronic evidence file
Value is sent to evidence obtaining server, so that server check value according to corresponding to small documents of collecting evidence is verified and root to small documents
Electronic evidence file is verified according to the check value of electronic evidence file.
Optionally, above-mentioned evidence obtaining client also includes：Exception processing module 604, for receive evidence obtaining server have appoint
One small documents verifies the notification message that the small documents verification of obstructed out-of-date transmission does not pass through；And/or receive evidence obtaining server and exist
The notification message that the electronic evidence file verification of the obstructed out-of-date transmission of electronic evidence file verification does not pass through.
Accordingly, the data transmission blocks 603, specifically it is additionally operable to be examined what is do not passed through to lead to according to the small documents received
Know that message is resend to evidence obtaining server and verify unsanctioned small documents and corresponding check value, or according to the small text received
Part examines the notification message not passed through to resend all small documents and each self-corresponding check value and electronics to evidence obtaining server
The check value of the instrument of evidence；And/or serviced according to the notification message that the electronic evidence inspection of document received does not pass through to evidence obtaining
Device resends all small documents and the check value of each self-corresponding check value and electronic evidence file.
Preferably, above-mentioned evidence acquisition module 601, forensics process is started specifically for being instructed according to the evidence obtaining of user；Root
The evidence obtaining mode selected according to user, the electronic evidence file of user's acquisition request is obtained using record screen or screenshotss mode.
Preferably, above-mentioned file cutting module 602, specifically for the small documents size according to setting, to electronic evidence text
Part carries out cutting, by the small documents that the cutting of electronic evidence file is some specified sizes；Or the cutting quantity according to setting, to electricity
The sub- instrument of evidence carries out cutting, is to specify the small documents of cutting quantity by the cutting of electronic evidence file；Or according to electronic evidence text
The type and/or size of part, segmentation rules are selected, by the cutting of electronic evidence file be some small texts according to the segmentation rules of selection
Part；And the hash values of each small documents are calculated using selected Hash hash value calculating methods and calculate electronic evidence file
Hash values.
The structure of above-mentioned evidence obtaining server 502 as shown in fig. 7, comprises：Receiving module 701, correction verification module 702, synthesis mould
Block 703 and memory module 704.
Receiving module 701, the check value of the electronic evidence file got sent for receiving evidence obtaining client and institute
State some small documents and its corresponding check value that electronic evidence file is cut into.
Correction verification module 702, each small documents are verified for check value corresponding to use；And use what is received
Electronic evidence file after the check value of electronic evidence file synthesizes to the synthesis module verifies.
Synthesis module 703, for when each small documents verify by when, all small documents are synthesized into complete electronics
The instrument of evidence.
Memory module 704, pass through the electronic evidence file after rear storage synthesis for electronic evidence file verification.
Optionally, above-mentioned evidence obtaining server also includes：
Abnormal notification module 705, for when there is the verification of any one small documents obstructed out-of-date, small text to be sent to evidence obtaining client
The notification message that part verification does not pass through；And/or when electronic evidence file verification is obstructed out-of-date, sending electronics to evidence obtaining client demonstrate,proves
The notification message not passed through according to file verification.
Accordingly, the receiving module 701, is specifically additionally operable to：Evidence obtaining client is received to be tested according to the small documents received
The unsanctioned small documents of verification and the corresponding check value that the notification message not passed through sends over are demonstrate,proved, or receives evidence obtaining client
All small documents and each self-corresponding check value that the notification message that small documents checking according to receiving does not pass through sends over
With the check value of electronic evidence file；And/or receive evidence obtaining client and do not passed through according to the electronic evidence file verification received
The notification message all small documents and the check value of each self-corresponding check value and electronic evidence file that send over.
Preferably, the correction verification module 702, the hash values specifically for calculating the small documents received, will be calculated
Hash values and the small documents that receive corresponding hash values are matched；If identical, verification passes through, and otherwise verifies
Do not pass through；And the hash values of the electronic evidence file of synthesis are calculated, the hash values being calculated and the electronics received are demonstrate,proved
Matched according to the hash values of file；If identical, verification passes through, and otherwise verifies and does not pass through.
On the evidence obtaining client in above-described embodiment and evidence obtaining server, wherein modules perform the specific side of operation
Formula is described in detail in the embodiment about this method, and explanation will be not set forth in detail herein.
The above method, system and the equipment of the embodiment of the present invention, evidence obtaining client is by the electronic evidence file of acquisition by choosing
It is some small documents to determine segmentation rules cutting, so as to be more convenient big file transmission, avoid because file is excessive and bust this, greatly
The big possibility for reducing big file uploading failure；By setting test value for each small documents, evidence obtaining server receives this
After a little small documents, each small documents is verified according to check value, ensures the correct transmission of each small documents, is not tampered with, carries
The accuracy and reliability of high file transmission；In the case where all small documents are all verified and passed through, during by small documents according to cutting
Rule reintegrate and synthesize complete electronic evidence file, the electronic evidence file of synthesis is verified again, ensure
The correctness of the electronic evidence file of synthesis, it is interior so as to more effectively ensure that the correct upload of the electronic evidence file of acquisition
Appearance will not be tampered, and improve that data transfer in electronic evidence solidification process is correct, reliability, ensure that the electronic evidence number of solidification
According to true, effective.
Unless otherwise specific statement, term such as handle, calculate, computing, determination, display etc. can refer to it is one or more
Individual processing or action and/or the process of computing system or similar devices, the action and/or process will be indicated as processing system
The data manipulation of physics (such as electronics) amount in the register or memory of system and it is converted into and is similarly represented as processing system
Memory, other data of the register either storage of other this type of informations, transmitting or physical quantity in display device.Information
It can be represented with signal using any one of a variety of different technologies and method.For example, in above description
Data, instruction, order, information, signal, bit, symbol and the chip referred to can use voltage, electric current, electromagnetic wave, magnetic field or grain
Son, light field or particle or its any combination represent.
It should be understood that the particular order or level of the step of during disclosed are the examples of illustrative methods.Based on setting
Count preference, it should be appreciated that during the step of particular order or level can be in the feelings for the protection domain for not departing from the disclosure
Rearranged under condition.Appended claim to a method gives the key element of various steps with exemplary order, and not
It is to be limited to described particular order or level.
In above-mentioned detailed description, various features combine in single embodiment together, to simplify the disclosure.No
This open method should be construed to reflect such intention, i.e. the embodiment of theme claimed needs clear
The more features of feature stated in each claim to Chu.On the contrary, that reflected such as appended claims
Sample, the present invention are in the state fewer than whole features of disclosed single embodiment.Therefore, appended claims is special
This is expressly incorporated into detailed description, and wherein each claim is alone as the single preferred embodiment of the present invention.
It should also be appreciated by one skilled in the art that the various illustrative boxes described with reference to the embodiments herein, mould
Block, circuit and algorithm steps can be implemented as electronic hardware, computer software or its combination.In order to clearly demonstrate hardware and
Interchangeability between software, various illustrative part, frame, module, circuit and steps are carried out around its function above
It is generally described.Hardware is implemented as this function and is also implemented as software, depending on specific application and to whole
The design constraint that system is applied.Those skilled in the art can be directed to each application-specific, be realized in a manner of flexible
Described function, it is still, this to realize that decision-making should not be construed as the protection domain away from the disclosure.
The step of method or algorithm with reference to described by the embodiments herein, can be embodied directly in hardware, be held by processor
Capable software module or its combination.Software module can be located at RAM memory, flash memory, ROM memory, eprom memory,
The storage of eeprom memory, register, hard disk, mobile disk, CD-ROM or any other form well known in the art is situated between
In matter.A kind of exemplary storage medium is connected to processor, so as to enable a processor to from the read information, and
Information can be write to the storage medium.Certainly, storage medium can also be the part of processor.Processor and storage medium
It can be located in ASIC.The ASIC can be located in user terminal.Certainly, processor and storage medium can also be used as discrete sets
Part is present in user terminal.
Realized for software, technology described in this application can use the module for performing herein described function (for example, mistake
Journey, function etc.) realize.These software codes can be stored in memory cell and by computing device.Memory cell can
With realize in processor, can also realize outside processor, in the latter case, it via various means by correspondence
It is coupled to processor, these are all well known in the art.
Described above includes the citing of one or more embodiments.Certainly, in order to above-described embodiment is described and description portion
The all possible combination of part or method is impossible, but it will be appreciated by one of ordinary skill in the art that each implementation
Example can do further combinations and permutations.Therefore, embodiment described herein is intended to fall into appended claims
Protection domain in all such changes, modifications and variations.In addition, with regard to the term used in specification or claims
"comprising", the mode that covers of the word are similar to term " comprising ", just as " including " solved in the claims as link word
As releasing.In addition, the use of any one term "or" in the specification of claims is to represent " non-exclusionism
Or ".
Claims (15)
- A kind of 1. electronic evidence data transmission method, it is characterised in that including：Client of collecting evidence obtains electronic evidence file；The electronic evidence file cutting of acquisition is some small documents by client of collecting evidence, it is determined that check value corresponding to each small documents With the check value of electronic evidence file；Each small documents and its check value of corresponding check value and electronic evidence file are sent to evidence obtaining clothes by evidence obtaining client Business device, to collect evidence, server check value according to corresponding to small documents is verified to small documents and according to electronic evidence file Check value electronic evidence file is verified.
- 2. the method as described in claim 1, it is characterised in that the evidence obtaining client obtains electronic evidence file, including：Client of collecting evidence instructs according to the evidence obtaining of user starts forensics process；The evidence obtaining mode selected according to user, the electronic evidence file of user's acquisition request is obtained using record screen or screenshotss mode.
- 3. the method as described in claim 1, it is characterised in that the evidence obtaining client is by the electronic evidence file cutting of acquisition For some small documents, it is determined that the check value of check value and electronic evidence file corresponding to each small documents, including：Client of collecting evidence carries out cutting, by electronic evidence file cutting according to the small documents size of setting to electronic evidence file For the small documents of some specified sizes；Or the cutting quantity according to setting, cutting is carried out to electronic evidence file, by electronic evidence File cutting is to specify the small documents of cutting quantity；Or type and/or size according to electronic evidence file, select cutting rule Then, it is some small documents by the cutting of electronic evidence file according to the segmentation rules of selection；Client of collecting evidence simultaneously calculates the hash values of each small documents using selected Hash hash value calculating methods and calculates electricity The hash values of the sub- instrument of evidence.
- 4. the method as described in claim 1-3 is any, it is characterised in that also include：Evidence obtaining server is received in the notice that the small documents verification for having the obstructed out-of-date transmission of any one small documents verification does not pass through to disappear Breath；Resend according to the notification message received to evidence obtaining server and verify unsanctioned small documents and corresponding check value, Or all small documents and each self-corresponding check value and electronics are resend to evidence obtaining server according to the notification message received The check value of the instrument of evidence；And/orEvidence obtaining server is received what the electronic evidence file verification of the obstructed out-of-date transmission of electronic evidence file verification did not passed through to lead to Know message, according to the notification message received to evidence obtaining server resend all small documents and each self-corresponding check value and The check value of electronic evidence file.
- A kind of 5. electronic evidence data transmission method, it is characterised in that including：Server of collecting evidence receives the check value for the electronic evidence file got that evidence obtaining client is sent and the electronic evidence The small documents and its corresponding check value that file is cut into；Evidence obtaining server each small documents are verified using corresponding check value, when each small documents verify by when, All small documents are synthesized into complete electronic evidence file；Evidence obtaining server is verified using the check value of the electronic evidence file received to the electronic evidence file after synthesis, Electronic evidence file after verification passes through after storage synthesis.
- 6. method as claimed in claim 5, it is characterised in that check value is to each small corresponding to the evidence obtaining server use File is verified, and is specifically included：The hash values of the small documents received are calculated, by hash corresponding to the hash values being calculated and the small documents received Value is matched；If identical, verification passes through, and otherwise verifies and does not pass through；The check value using the electronic evidence file received verifies to the electronic evidence file after synthesis, specific bag Include：The hash values of the electronic evidence file of synthesis are calculated, by the hash values being calculated and the electronic evidence file received Hash values are matched；If identical, verification passes through, and otherwise verifies and does not pass through.
- 7. the method as described in claim 5 or 6, it is characterised in that also include：When having, the verification of any one small documents is obstructed out-of-date, the notification message not passed through to evidence obtaining client transmission small documents verification； The unsanctioned small documents of verification and the corresponding check value that evidence obtaining client sends over according to the notification message received are received, Or receive all small documents for being sended over according to the notification message received of evidence obtaining client and each self-corresponding check value with The check value of electronic evidence file；And/orWhen electronic evidence file verification is obstructed out-of-date, the notice not passed through to evidence obtaining client transmission electronic evidence file verification disappears Breath, receive all small documents for being sended over according to the notification message received of evidence obtaining client and each self-corresponding check value with The check value of electronic evidence file.
- 8. one kind evidence obtaining client, it is characterised in that including：Evidence acquisition module, for obtaining electronic evidence file；File cutting module, for being some small documents by the electronic evidence file cutting of acquisition, it is determined that each small documents are corresponding Check value and electronic evidence file check value；Data transmission blocks, for each small documents and its check value of corresponding check value and electronic evidence file to be sent to Evidence obtaining server, so that server check value according to corresponding to small documents of collecting evidence is verified to small documents and is demonstrate,proved according to electronics Electronic evidence file is verified according to the check value of file.
- 9. evidence obtaining client as claimed in claim 8, it is characterised in that the evidence acquisition module, be specifically used for：Instructed according to the evidence obtaining of user and start forensics process；The evidence obtaining mode selected according to user, the electronic evidence file of user's acquisition request is obtained using record screen or screenshotss mode.
- 10. evidence obtaining client as claimed in claim 8, it is characterised in that the file cutting module, be specifically used for：According to the small documents size of setting, cutting is carried out to electronic evidence file, the cutting of electronic evidence file is specified to be some The small documents of size；Or the cutting quantity according to setting, cutting is carried out to electronic evidence file, is by electronic evidence file cutting Specify the small documents of cutting quantity；Or type and/or size according to electronic evidence file, segmentation rules are selected, according to selection Segmentation rules by the cutting of electronic evidence file be some small documents；And the hash values of each small documents are calculated using selected Hash hash value calculating methods and calculate electronic evidence file Hash values.
- 11. the evidence obtaining client as described in claim 8-10 is any, it is characterised in that also include：Exception processing module, for receiving evidence obtaining server in the small documents school for thering is any one small documents to verify obstructed out-of-date transmission Test the notification message not passed through；And/or receive evidence obtaining server and demonstrate,proved in the electronics of the obstructed out-of-date transmission of electronic evidence file verification The notification message not passed through according to file verification；Accordingly,The sending module, be additionally operable to be examined according to the small documents that receive the notification message not passed through to evidence obtaining server again Send and verify unsanctioned small documents and corresponding check value, or the notification message not passed through is examined according to the small documents received All small documents and the check value of each self-corresponding check value and electronic evidence file are resend to evidence obtaining server；And/or The notification message that the electronic evidence inspection of document according to receiving does not pass through to evidence obtaining server resend all small documents and The check value of each self-corresponding check value and electronic evidence file.
- 12. one kind evidence obtaining server, it is characterised in that including：Receiving module, correction verification module, synthesis module and memory module；The receiving module, the check value and the electricity of the electronic evidence file got sent for receiving evidence obtaining client Some small documents and its corresponding check value that the sub- instrument of evidence is cut into；The correction verification module, each small documents are verified for check value corresponding to use；And use the electricity received Electronic evidence file after the check value of the sub- instrument of evidence synthesizes to the synthesis module verifies；The synthesis module, for when each small documents verify by when, all small documents are synthesized into complete electronics and demonstrate,proved According to file；The memory module, pass through the electronic evidence file after rear storage synthesis for electronic evidence file verification.
- 13. evidence obtaining server as claimed in claim 12, it is characterised in that the correction verification module, be specifically used for：The hash values of the small documents received are calculated, by the hash values being calculated and the small documents received to corresponding Hash values are matched；If identical, verification passes through, and otherwise verifies and does not pass through；AndThe hash values of the electronic evidence file of synthesis are calculated, by the hash values being calculated and the electronic evidence file received Hash values are matched；If identical, verification passes through, and otherwise verifies and does not pass through.
- 14. the evidence obtaining server as described in claim 12 or 13, it is characterised in that also include：Abnormal notification module, when having, the verification of any one small documents is obstructed out-of-date, and it is obstructed to send small documents verification to evidence obtaining client The notification message crossed；And/or when electronic evidence file verification is obstructed out-of-date, to collecting evidence, client sends electronic evidence file verification The notification message not passed through；AccordinglyThe receiving module, is additionally operable to：Receive the notification message that evidence obtaining client does not pass through according to the small documents checking received The unsanctioned small documents of verification sended over and corresponding check value, or evidence obtaining client is received according to the small documents received All small documents and the school of each self-corresponding check value and electronic evidence file that the notification message that checking does not pass through sends over Test value；And/or receive the notification message that evidence obtaining client does not pass through according to the electronic evidence file verification received and send over All small documents and the check value of each self-corresponding check value and electronic evidence file.
- A kind of 15. electronic evidence data transmission system, it is characterised in that including：Evidence obtaining as described in claim 8-11 is any Client and the evidence obtaining server as described in claim 12-14 is any.
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| CN201710986404.6A CN107809423A (en) | 2017-10-20 | 2017-10-20 | A kind of electronic evidence data transmission method, system and equipment |
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| CN201710986404.6A CN107809423A (en) | 2017-10-20 | 2017-10-20 | A kind of electronic evidence data transmission method, system and equipment |
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| CN111161448A (en) * | 2018-11-07 | 2020-05-15 | 北京燧昀科技有限公司 | Data storage method, data verification method, device, equipment and storage medium |
| CN110674534A (en) * | 2019-09-26 | 2020-01-10 | 杭州数蛙科技有限公司 | Remote quality detection technology based on Internet of things electronic evidence chain |
| CN113645266A (en) * | 2021-06-21 | 2021-11-12 | 天津津航计算技术研究所 | File transmission method, file verification method and device |
| CN114301575A (en) * | 2021-12-21 | 2022-04-08 | 阿里巴巴（中国）有限公司 | Data processing method, system, device and medium |
| CN114301575B (en) * | 2021-12-21 | 2024-03-29 | 阿里巴巴（中国）有限公司 | Data processing method, system, equipment and medium |
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Application publication date: 20180316 |