CN109241708A - A kind of method and device of Tracing Control identification file duplication - Google Patents
A kind of method and device of Tracing Control identification file duplication Download PDFInfo
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- CN109241708A CN109241708A CN201811175529.1A CN201811175529A CN109241708A CN 109241708 A CN109241708 A CN 109241708A CN 201811175529 A CN201811175529 A CN 201811175529A CN 109241708 A CN109241708 A CN 109241708A
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- 238000000034 method Methods 0.000 title claims abstract description 101
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000004321 preservation Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000012795 verification Methods 0.000 claims description 3
- 230000003362 replicative effect Effects 0.000 claims 1
- 230000006399 behavior Effects 0.000 abstract description 4
- 230000006870 function Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 12
- 230000000644 propagated effect Effects 0.000 description 4
- 230000010076 replication Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/16—Program or content traceability, e.g. by watermarking
Abstract
This patent is related to a kind of method and device field for tracking, controlling, identifying file duplication.Using the copy function of computer, file easily can be copied to other people.And at this time, the duplicator of file also just loses the control ability to file after duplication, i.e., can not prevent other people reading and saving files, can not prevent other people copy propagation files, be unable to control file self-destruction, can not know file be replicated propagation, can not trace files route of transmission, the responsible party of outflow of document can not be investigated.The method and device that this patent is proposed, main technical points are to rely on block chain technology to be tracked to the route of transmission of file, control the file after duplication, and utilize the responsible party of electronic watermarking technology identification outflow of document.The method and device proposed using this patent, the file after issuing, timely learning being replicated with the copy propagation approach of trace files, control, other people replicate the behavior of file, identify the responsible party of outflow of document.
Description
Technical field
This patent is related to a kind of method and device field for tracking, controlling, identifying file duplication, especially a kind of support area
Block chain technology is tracked the route of transmission of file, controls the file after duplication, and is known using electronic watermarking technology
The method and device for the responsible party that other file is divulged a secret.
Background technique
In modern society, electronic computer and internet have been deep into the every aspect of people's work and life,
The middle file copy function using electronic computer, easily can be copied to other people for file, which greatly improves texts
The propagation efficiency of part brings huge convenience for contemporary work life.However, file is facilitated, efficient replication is propagated
Meanwhile there are the following problems:
For important file, duplicator is not intended to file by wide-scale distribution, and only will in limited range
The vital document of oneself is propagated.But once file is copied to other people, the duplicator of file loses to duplication
The control ability of file afterwards is unable to control other people reading and saving files, other people can not be prevented file copy propagation, nothing again
Method controls file self-destruction.
The duplicator of file can not also know the recipient of file while the control ability of file after losing to duplication
Whether again copy propagation file, i.e., can not know file by copy propagation again, can not trace files route of transmission.
When the initial replication person of file has found that file is leaked to unsafe range, initial replication person can not be investigated most
The just specific responsible party of leakage file.
Summary of the invention
In view of this, this patent proposes a kind of method and device for tracking, controlling, identifying file duplication, purpose exists
In, using block chain technology and electronic watermarking technology, the route of transmission of trace files, the file after duplication is controlled,
Timely learning other people replicate again file behavior, identification file leakage event responsible party.
In order to solve the above technical problems, the specific technical solution of this patent is:
A method of tracking, control, identification file duplication, node of the method based on network connection and block chain,
The method include file upload archiving method, file capability control method, file sending method, digital watermarking generation method,
File reception store method, event notification method, identification checking method.
The file refers to the electronic information being stored in all kinds of storage mediums, including permanently stores and temporarily store,
Refer to the electronic information in cable network and transmission in wireless network.
The file uploads archiving method, refer to file owner (owner) by file be included into this patent the method into
The method of row management, specifically:
Digital watermarking (DM) is read from file, the digital watermarking is generated by the digital watermarking generation method, wherein
Time (st), file are issued comprising file unique identification (id), file root mark (rid), file sender mark (sr), file
Recipient identifies the information such as (rr), file reception time (rt), file ability license (ap).File ability permits that (ap) includes to read
Take license (ap (r)), save license (ap (s)), copy propagation license (ap (c)), self-destruction license (ap (d)) etc..
According to file unique identification (id), the block of file propagation information is had recorded by retrieving in block chain, and reads text
Part propagates information (SI).File propagation information includes file unique identification (id), file root mark (rid), file sender mark
Know (sr), file issues time (st), document receivers identify (rr), file reception time (rt), file ability license (ap)
Etc. information.File ability permits that (ap) includes to read that (ap (r)), preservation license (ap (s)), copy propagation is permitted to permit (ap
(c)), self-destruction license (ap (d)) etc..
When file owner (owner), document receivers identify (DM [rr], SI [rr]) be same main body when or file
In do not include digital watermarking (DM) when, file is normally included into this patent the method and is managed.
When it is not same main body that file owner (owner), document receivers, which identify (DM [rr], SI [rr]), use
The event notification method circular document sender (DM [sr], SI [sr]), file be normally included into this patent the method into
Row management.
The file capability control method refers to that file is being copied to document receivers by file sender (sender)
(receiver) it before and after, further controls the ability of document receivers (receiver) accessed document, save file
The method of ability, the ability that file is replicated to sending again and the self-destructed ability of file, specifically:
File sender (sender) can record in the file propagation information (SI) on more new block chain at any time
File ability permit (ap).When consulting as document receivers (receiver), saving or replicate file again, need to verify number
The file ability recorded in file propagation information (SI) in word watermark (DM), block chain permits (ap), when file ability is permitted
(ap) when self-destruction license (ap (d)) is true, file self-destruction；When the reading license (ap (r)) of file ability license (ap) is true
When, allow document receivers (receiver) accessed document；When the preservation license (ap (s)) of file ability license (ap) is true
When, allow document receivers (receiver) to save file；When the copy propagation license (ap (c)) of file ability license (ap) is
When true, allow document receivers (receiver) to replicate and issue file.
The file sending method refers to that file is copied to document receivers by file sender (sender2)
(receiver2) method, specifically:
The selected file for needing to replicate of file sender (sender2) and document receivers (receiver2), are arranged file
Ability permits (ap2), reads digital watermarking (DM1) from file, and reads file ability license (ap1), unique according to file
Identify (id1), have recorded the block of file propagation information by retrieving in block chain, and read file propagation information (SI1) and its
In file ability permit (ap1).
When copy propagation license (ap (c) 1) permission file sender (sender2) of file ability license (ap1), i.e.,
(DM [rr1], SI [rr1]), when issuing file, i.e. simultaneously SI [ap (c) 1] is true, creation file propagation information to DM [ap (c) 1]
(SI2), wherein newly created file unique identification (id2), file root identify (rid) and identify (rid) for original root, and file issues
It is that original recipient identifies (rr1) namely file sender (sender) that person, which identifies (sr2), and file issues time (st2) and is
File sender (sender2) operating time, it is newly selected document receivers that document receivers, which identify (rr2),
(receiver2), the file reception time (rt2) is the time that document receivers (receiver2) receives file, and file ability is permitted
Can (ap2) be file sender (sender2) setting file ability license.Newly created file propagation information (SI2) saves
In block on to block chain, and use the event notification method circular document sender (DM [sr1], SI [sr1]).
If not including digital watermarking (DM) in the selected file for needing to replicate of file sender (sender2), text is created
Part propagates information (SI), wherein creation file unique identification (id), file root identifies (rid) and file unique identification (id) phase
Together, file sender mark (sr) is file sender (sender2), and it is file sender that file, which issues time (st),
(sender2) operating time, when document receivers' mark (rr) is selected document receivers (receiver2), file reception
Between (rt) be document receivers (receiver2) receive file time, file ability permit (ap) be file sender
(sender2) the file ability license being arranged, newly created file propagation information (SI) are saved in the block on block chain.
The digital watermarking generation method refers to the method for generating digital watermarking (DM) according to file propagation information (SI),
Specifically:
It according to file propagation information (SI), creates digital watermarking (DM), wherein including file unique identification (id), file root
Identify (rid), file sender mark (sr), file sending time (st), document receivers' mark (rr), file reception time
(rt), file ability license (ap), it is identical as corresponding informance in file propagation information (SI).
The file reception store method refers to that document receivers (receiver) saves or check file sender
(sender) method of the file replicated, specifically:
When document receivers (receiver) save or check file, file propagation information is had recorded by retrieving in block chain
Block, and read file propagation information (SI), update file reception time (rt), on verifying digital watermark (DM), block chain
File propagation information (SI) in record file ability permit (ap), when file ability license (ap) self-destruction permit (ap
(d)) when being true, file self-destruction；When the reading of file ability license (ap) license (ap (r)) is true, allow document receivers
(receiver) accessed document；When the preservation of file ability license (ap) license (ap (s)) is true, allow document receivers
(receiver) file is saved；When document receivers (receiver) consult and save file, generated using the digital watermarking
Method generates digital watermarking (DM) and is embedded in file.
The event notification method, when referring to related with the file that file sender (sender) the replicates event of generation,
By the method for event circular document sender (sender), specifically:
It creates event block (E), wherein including event unique identification (eid), event content (ec), event time (et), text
Part unique identification (id), file root mark (rid), file sender mark (sr), document receivers identify (rr).By event block
(E) it is saved in the block on block chain, is consulted for file sender (sender).
The event refers to that document receivers (receiver) check or save for the first time the event of file, also refers to file and connects
The event that receipts person (receiver) replicates file again is also referred to as file owner (owner), document receivers' mark
Event and other events when (DM [rr], SI [rr]) is not same main body.
The identification checking method refers to that discovery file is leaked to file sender (sender) selected file reception
When people other than person (receiver), determine which document receivers (receiver) should reveal file responsible method,
Specifically:
Digital watermarking (DM) is read from the file revealed, according to file unique identification (id), by examining in block chain
Rope has recorded the block of file propagation information, and reads file propagation information (SI), believes from digital watermarking (DM) and file propagation
It ceases the document receivers recorded in (SI) to identify in (rr), the document receivers (receiver) of file have been revealed in identification, i.e., literary
The responsible party of part leakage event.
A kind of device for tracking, controlling, identifying file duplication, node of the described device based on network connection and block chain,
Described device include file upload profiling unit, file capability control unit, file issue unit, digital watermarking generation unit,
Receive storage unit, event notification unit, identification verification unit.
The file refers to the electronic information being stored in all kinds of storage mediums, including permanently stores and temporarily store,
Refer to the electronic information in cable network and transmission in wireless network.
The file uploads profiling unit, refer to file owner (owner) by file be included into this patent described device into
The unit of row management, specifically:
Digital watermarking (DM) is read from file, the digital watermarking is generated by the digital watermarking generation unit, wherein
Time (st), file are issued comprising file unique identification (id), file root mark (rid), file sender mark (sr), file
Recipient identifies the information such as (rr), file reception time (rt), file ability license (ap).File ability permits that (ap) includes to read
Take license (ap (r)), save license (ap (s)), copy propagation license (ap (c)), self-destruction license (ap (d)) etc..
According to file unique identification (id), the block of file propagation information is had recorded by retrieving in block chain, and reads text
Part propagates information (SI).File propagation information includes file unique identification (id), file root mark (rid), file sender mark
Know (sr), file issues time (st), document receivers identify (rr), file reception time (rt), file ability license (ap)
Etc. information.File ability permits that (ap) includes to read that (ap (r)), preservation license (ap (s)), copy propagation is permitted to permit (ap
(c)), self-destruction license (ap (d)) etc..
When file owner (owner), document receivers identify (DM [rr], SI [rr]) be same main body when or file
In do not include digital watermarking (DM) when, file is normally included into this patent described device and is managed.
When it is not same main body that file owner (owner), document receivers, which identify (DM [rr], SI [rr]), use
The event notification unit circular document sender (DM [sr], SI [sr]), file be normally included into this patent described device into
Row management.
The file capability control unit refers to that file is being copied to document receivers by file sender (sender)
(receiver) it before and after, further controls the ability of document receivers (receiver) accessed document, save file
The unit of ability, the ability that file is replicated to sending again and the self-destructed ability of file, specifically:
File sender (sender) can record in the file propagation information (SI) on more new block chain at any time
File ability permit (ap).When consulting as document receivers (receiver), saving or replicate file again, need to verify number
The file ability recorded in file propagation information (SI) in word watermark (DM), block chain permits (ap), when file ability is permitted
(ap) when self-destruction license (ap (d)) is true, file self-destruction；When the reading license (ap (r)) of file ability license (ap) is true
When, allow document receivers (receiver) accessed document；When the preservation license (ap (s)) of file ability license (ap) is true
When, allow document receivers (receiver) to save file；When the copy propagation license (ap (c)) of file ability license (ap) is
When true, allow document receivers (receiver) to replicate and issue file.
The file issue unit refers to that file is copied to document receivers by file sender (sender2)
(receiver2) unit, specifically:
The selected file for needing to replicate of file sender (sender2) and document receivers (receiver2), are arranged file
Ability permits (ap2), reads digital watermarking (DM1) from file, and reads file ability license (ap1), unique according to file
Identify (id1), have recorded the block of file propagation information by retrieving in block chain, and read file propagation information (SI1) and its
In file ability permit (ap1).
When copy propagation license (ap (c) 1) permission file sender (sender2) of file ability license (ap1), i.e.,
(DM [rr1], SI [rr1]), when issuing file, i.e. simultaneously SI [ap (c) 1] is true, creation file propagation information to DM [ap (c) 1]
(SI2), wherein newly created file unique identification (id2), file root identify (rid) and identify (rid) for original root, and file issues
It is that original recipient identifies (rr1) namely file sender (sender) that person, which identifies (sr2), and file issues time (st2) and is
File sender (sender2) operating time, it is newly selected document receivers that document receivers, which identify (rr2),
(receiver2), the file reception time (rt2) is the time that document receivers (receiver2) receives file, and file ability is permitted
Can (ap2) be file sender (sender2) setting file ability license.Newly created file propagation information (SI2) saves
In block on to block chain, and use the event notification unit circular document sender (DM [sr1], SI [sr1]).
If not including digital watermarking (DM) in the selected file for needing to replicate of file sender (sender2), text is created
Part propagates information (SI), wherein creation file unique identification (id), file root identifies (rid) and file unique identification (id) phase
Together, file sender mark (sr) is file sender (sender2), and it is file sender that file, which issues time (st),
(sender2) operating time, when document receivers' mark (rr) is selected document receivers (receiver2), file reception
Between (rt) be document receivers (receiver2) receive file time, file ability permit (ap) be file sender
(sender2) the file ability license being arranged, newly created file propagation information (SI) are saved in the block on block chain.
The digital watermarking generation unit refers to the unit that digital watermarking (DM) is generated according to file propagation information (SI),
Specifically:
It according to file propagation information (SI), creates digital watermarking (DM), wherein including file unique identification (id), file root
Identify (rid), file sender mark (sr), file sending time (st), document receivers' mark (rr), file reception time
(rt), file ability license (ap), it is identical as corresponding informance in file propagation information (SI).
The file reception storage unit refers to that document receivers (receiver) saves or check file sender
(sender) unit of the file replicated, specifically:
When document receivers (receiver) save or check file, file propagation information is had recorded by retrieving in block chain
Block, and read file propagation information (SI), update file reception time (rt), on verifying digital watermark (DM), block chain
File propagation information (SI) in record file ability permit (ap), when file ability license (ap) self-destruction permit (ap
(d)) when being true, file self-destruction；When the reading of file ability license (ap) license (ap (r)) is true, allow document receivers
(receiver) accessed document；When the preservation of file ability license (ap) license (ap (s)) is true, allow document receivers
(receiver) file is saved；When document receivers (receiver) consult and save file, generated using the digital watermarking
Unit generates digital watermarking (DM) and is embedded in file.
The event notification unit, when referring to related with the file that file sender (sender) the replicates event of generation,
By the unit of event circular document sender (sender), specifically:
It creates event block (E), wherein including event unique identification (eid), event content (ec), event time (et), text
Part unique identification (id), file root mark (rid), file sender mark (sr), document receivers identify (rr).By event block
(E) it is saved in the block on block chain, is consulted for file sender (sender).
The event refers to that document receivers (receiver) check or save for the first time the event of file, also refers to file and connects
The event that receipts person (receiver) replicates file again is also referred to as file owner (owner), document receivers' mark
Event and other events when (DM [rr], SI [rr]) is not same main body.
Unit is investigated in the identification, refers to that discovery file is leaked to file sender (sender) selected file reception
When people other than person (receiver), determine which document receivers (receiver) should reveal file responsible unit,
Specifically:
Digital watermarking (DM) is read from the file revealed, according to file unique identification (id), by examining in block chain
Rope has recorded the block of file propagation information, and reads file propagation information (SI), believes from digital watermarking (DM) and file propagation
It ceases the document receivers recorded in (SI) to identify in (rr), the document receivers (receiver) of file have been revealed in identification, i.e., literary
The responsible party of part leakage event.
Detailed description of the invention
Attached drawing 1 is that archiving method flow diagram is uploaded in this patent embodiment；
Attached drawing 2 is file capability control method flow diagram in this patent embodiment；
Attached drawing 3 is file sending method flow diagram in this patent embodiment；
Attached drawing 4 is digital watermarking generation method schematic diagram in this patent embodiment；
Attached drawing 5 is file reception store method flow diagram in this patent embodiment；
Attached drawing 6 is that checking method flow diagram is identified in this patent embodiment；
Attached drawing 7 is a kind of structure drawing of device of Tracing Control identification file duplication in this patent embodiment；
Specific embodiment
As shown in Figure 1, to upload archiving method flow diagram in this patent embodiment.
Step plays 101, reads digital watermarking (DM) from file, and the digital watermarking is raw by the digital watermarking generation method
At wherein issuing the time comprising file unique identification (id), file root mark (rid), file sender mark (sr), file
(st), document receivers identify the information such as (rr), file reception time (rt), file ability license (ap), the license of file ability
(ap) comprising reading license (ap (r)), saving license (ap (s)), copy propagation license (ap (c)), self-destruction license (ap (d))
Deng.
Step plays 102, and according to file unique identification (id), the block of file propagation information is had recorded by retrieving in block chain,
And read file propagation information (SI).File propagation information includes file unique identification (id), file root mark (rid), file
Sender identifies (sr), file issues time (st), document receivers identify (rr), file reception time (rt), file ability
Information such as (ap), file ability are permitted to permit that (ap) includes to read license (ap (r)), save and permit that (ap (s)), copy propagation are permitted
It can (ap (c)), self-destruction license (ap (d)) etc..
Step plays 103, step and plays 105, is same when file owner (owner), document receivers identify (DM [rr], SI [rr])
When not including digital watermarking (DM) when one main body or in file, file is normally included into this patent the method and is managed.
Step plays 104, step and plays 105, when file owner (owner), document receivers' mark (DM [rr], SI [rr]) are not
When same main body, using the event notification method circular document sender (DM [sr], SI [sr]), file is normally included into this
Patent the method is managed.
As shown in Fig. 2, for file capability control method flow diagram in this patent embodiment.
Step plays 201, step plays 202, file sender (sender) can the file at any time on more new block chain pass
The file ability license (ap) recorded in information (SI) is broadcast, step plays 203, step and plays 202, when document receivers (receiver) look into
When readding, saving or replicate file again, verifying digital watermark (DM) is needed, record in the file propagation information (SI) on block chain
File ability permit (ap), step play 204, when file ability license (ap) self-destruction license (ap (d)) be true when, step play 207,
File self-destruction, step play 205, and step plays 206, when the reading of file ability license (ap) license (ap (r)) is true, file are allowed to connect
Receipts person (receiver) accessed document；When the preservation of file ability license (ap) license (ap (s)) is true, allow file reception
Person (receiver) saves file；When the copy propagation of file ability license (ap) license (ap (c)) is true, file is allowed to connect
Receipts person (receiver), which replicates, issues file.
As shown in figure 3, for file sending method flow diagram in this patent embodiment.
Step plays 301, step and plays 302, the file and document receivers that the selected needs of file sender (sender2) replicate
(receiver2), setting file ability permits (ap2), reads digital watermarking (DM1) from file, and read file ability and permitted
Can (ap1) block of file propagation information had recorded by retrieving in block chain according to file unique identification (id1), and read text
Part propagates information (SI1) and file ability therein license (ap1).
Step plays 303, step and plays 304, when the copy propagation license (ap (c) 1) of file ability license (ap1) allows file to issue
Person (sender2), i.e. (DM [rr1], SI [rr1]), when issuing file, i.e. simultaneously SI [ap (c) 1] is true, creation to DM [ap (c) 1]
File propagation information (SI2), wherein newly created file unique identification (id2), file root identify (rid) as original root mark
(rid), file sender mark (sr2) is that original recipient identifies (rr1) namely file sender (sender), file
Issuing time (st2) is file sender (sender2) operating time, and it is newly selected file that document receivers, which identify (rr2),
Recipient (receiver2), file reception time (rt2) are the time that document receivers (receiver2) receives file, file
Ability permits the file ability license that (ap2) is file sender (sender2) setting.Newly created file propagation information
(SI2) it is saved in the block on block chain, and uses event notification method circular document sender (DM [sr1], SI
[sr1])。
Step plays 301, step and plays 304, if not including digital water in the selected file for needing to replicate of file sender (sender2)
It prints (DM), then creates file propagation information (SI), wherein creation file unique identification (id), file root identifies (rid) and file
Unique identification (id) is identical, and it is file sender (sender2) that file sender, which identifies (sr), and it is text that file, which issues time (st),
Part sender (sender2) operating time, it is selected document receivers (receiver2), text that document receivers, which identify (rr),
Part receiving time (rt) is the time that document receivers (receiver2) receives file, and file ability permits (ap) for file hair
The file ability license of (sender2) setting, newly created file propagation information (SI) are saved in the block on block chain out
In.
As shown in figure 4, for digital watermarking generation method schematic diagram in this patent embodiment.
According to 401 file propagation information (SI), create 402 digital watermarkings (DM), wherein comprising file unique identification (id),
File root mark (rid), file sender mark (sr), file issue time (st), document receivers identify (rr), file connects
(rt), file ability license (ap), identical as corresponding informance in file propagation information (SI) between time receiving.
As shown in figure 5, for file reception store method flow diagram in this patent embodiment.
Step plays 501, when document receivers (receiver) save or check file, has recorded file by retrieving in block chain
The block of information is propagated, and reads file propagation information (SI), is updated file reception time (rt), step plays 502, verifies digital water
The file ability recorded in file propagation information (SI) in print (DM), block chain permits (ap), when file ability permits (ap)
Self-destruction license (ap (d)) when being true, file self-destruction；When the reading of file ability license (ap) license (ap (r)) is true, permit
Perhaps document receivers (receiver) accessed document；When the preservation of file ability license (ap) license (ap (s)) is true, allow
Document receivers (receiver) save file；Step plays 503, and step plays 504, and document receivers (receiver) consult and save text
When part, digital watermarking (DM) is generated using the digital watermarking generation method and is embedded in file.
As shown in fig. 6, to identify checking method flow diagram in this patent embodiment.
Step plays 601, reads digital watermarking (DM) from the file revealed, and step plays 602, according to file unique identification
(id), the block of file propagation information is had recorded by retrieving in block chain, and reads file propagation information (SI), and step plays 603, step
604 are played, is identified in (rr) from the document receivers recorded in digital watermarking (DM) and file propagation information (SI), identification has been revealed
The responsible party of the document receivers (receiver) of file, i.e. file leakage event.
As shown in fig. 7, identifying the structure drawing of device of file duplication for Tracing Control a kind of in this patent embodiment.
Described device arrives the node of block chain by network connection, and described device uploads profiling unit 701, file by file
Capability control unit 702, digital watermarking generation unit 703, receives storage unit 705, event notice at file issue unit 704
Unit 707, identification verification unit 706 form.
The file uploads profiling unit 701, refers to that file is included into this patent described device by file owner (owner)
The unit being managed, specifically:
Digital watermarking (DM) is read from file, the digital watermarking is generated by the digital watermarking generation unit, wherein
Time (st), file are issued comprising file unique identification (id), file root mark (rid), file sender mark (sr), file
Recipient identifies the information such as (rr), file reception time (rt), file ability license (ap).
According to file unique identification (id), the block of file propagation information is had recorded by retrieving in block chain, and reads text
Part propagates information (SI).File propagation information includes file unique identification (id), file root mark (rid), file sender mark
Know (sr), file issues time (st), document receivers identify (rr), file reception time (rt), file ability license (ap)
Etc. information.
When file owner (owner), document receivers identify (DM [rr], SI [rr]) be same main body when or file
In do not include digital watermarking (DM) when, file is normally included into this patent described device and is managed.
When it is not same main body that file owner (owner), document receivers, which identify (DM [rr], SI [rr]), use
The event notification unit circular document sender (DM [sr], SI [sr]), file be normally included into this patent described device into
Row management.
The file capacity unit 702 refers to that file is being copied to document receivers by file sender (sender)
(receiver) it before and after, further controls the ability of document receivers (receiver) accessed document, save file
The unit of ability, the ability that file is replicated to sending again and the self-destructed ability of file, specifically:
File sender (sender) can record in the file propagation information (SI) on more new block chain at any time
File ability permit (ap).When consulting as document receivers (receiver), saving or replicate file again, need to verify number
The file ability recorded in file propagation information (SI) in word watermark (DM), block chain permits (ap), when file ability is permitted
(ap) when self-destruction license (ap (d)) is true, file self-destruction；When the reading license (ap (r)) of file ability license (ap) is true
When, allow document receivers (receiver) accessed document；When the preservation license (ap (s)) of file ability license (ap) is true
When, allow document receivers (receiver) to save file；When the copy propagation license (ap (c)) of file ability license (ap) is
When true, allow document receivers (receiver) to replicate and issue file.
The file issue unit 704 refers to that file is copied to document receivers by file sender (sender2)
(receiver2) unit, specifically:
The selected file for needing to replicate of file sender (sender2) and document receivers (receiver2), are arranged file
Ability permits (ap2), reads digital watermarking (DM1) from file, and reads file ability license (ap1), unique according to file
Identify (id1), have recorded the block of file propagation information by retrieving in block chain, and read file propagation information (SI1) and its
In file ability permit (ap1).
When copy propagation license (ap (c) 1) permission file sender (sender2) of file ability license (ap1), i.e.,
(DM [rr1], SI [rr1]), when issuing file, i.e. simultaneously SI [cp1] is true, creation file propagation information (SI2) to DM [cp1],
Middle newly created file unique identification (id2), it is that original root identifies (rid) that file root, which identifies (rid), file sender mark
(sr2) (rr1) namely file sender (sender) are identified for original recipient, file issues time (st2) as file hair
(sender2) operating time out, it is newly selected document receivers (receiver2), file that document receivers, which identify (rr2),
Receiving time (rt2) is the time that document receivers (receiver2) receives file, and file ability permits (ap2) for file hair
The file ability license of (sender2) setting out.Newly created file propagation information (SI2) is saved in the block on block chain
In, and use the event notification unit circular document sender (DM [sr1], SI [sr1]).
If not including digital watermarking (DM) in the selected file for needing to replicate of file sender (sender2), text is created
Part propagates information (SI), wherein creation file unique identification (id), file root identifies (rid) and file unique identification (id) phase
Together, file sender mark (sr) is file sender (sender2), and it is file sender that file, which issues time (st),
(sender2) operating time, it be the document receivers (receiver2) selected that document receivers, which identify (rr), when file reception
Between (rt) be document receivers (receiver2) receive file time, file ability permit (ap) be file sender
(sender2) the file ability license being arranged, newly created file propagation information (SI) are saved in the block on block chain.
The digital watermarking generation unit 703 refers to the list that digital watermarking (DM) is generated according to file propagation information (SI)
Member, specifically:
It according to file propagation information (SI), creates digital watermarking (DM), wherein including file unique identification (id), file root
Identify (rid), file sender mark (sr), file sending time (st), document receivers' mark (rr), file reception time
(rt), file ability license (ap), it is identical as corresponding informance in file propagation information (SI).
The file reception storage unit 705 refers to that document receivers (receiver) saves or check file sender
(sender) unit of the file replicated, specifically:
When document receivers (receiver) save or check file, file propagation information is had recorded by retrieving in block chain
Block, and read file propagation information (SI), update file reception time (rt), on verifying digital watermark (DM), block chain
File propagation information (SI) in record file ability permit (ap), when file ability license (ap) self-destruction permit (ap
(d)) when being true, file self-destruction；When the reading of file ability license (ap) license (ap (r)) is true, allow document receivers
(receiver) accessed document；When the preservation of file ability license (ap) license (ap (s)) is true, allow document receivers
(receiver) file is saved；When document receivers (receiver) consult and save file, generated using the digital watermarking
Unit generates digital watermarking (DM) and is embedded in file.
The event notification unit 707 refers to generation event related with the file that file sender (sender) replicates
When, by the unit of event circular document sender (sender), specifically:
It creates event block (E), wherein including event unique identification (eid), event content (ec), event time (et), text
Part unique identification (id), file root mark (rid), file sender mark (sr), document receivers identify (rr).By event block
(E) it is saved in the block on block chain, is consulted for file sender (sender).
The event refers to that document receivers (receiver) check or save for the first time the event of file, also refers to file and connects
The event that receipts person (receiver) replicates file again is also referred to as file owner (owner), document receivers' mark
Event and other events when (DM [rr], SI [rr]) is not same main body.
Unit 706 is investigated in the identification, refers to that discovery file is leaked to file sender (sender) selected file
When people other than recipient (receiver), determine which document receivers (receiver) should reveal file responsible list
Member, specifically:
Digital watermarking (DM) is read from the file revealed, according to file unique identification (id), by examining in block chain
Rope has recorded the block of file propagation information, and reads file propagation information (SI), believes from digital watermarking (DM) and file propagation
It ceases the document receivers recorded in (SI) to identify in (rr), the document receivers (receiver) of file have been revealed in identification, i.e., literary
The responsible party of part leakage event.
In above-described embodiment, if be applied to relatively simple system environments, traditional database technique generation also can use
For block chain technology, to reduce the cost of practical application.
Each unit of above-described embodiment can integrate in an entirety, can also be deployed separately；It can be merged into one
Unit can also be further split into multiple subelements.
In conclusion this patent is solved by proposing a kind of method and device for tracking, controlling, identifying file duplication
Safety problem existing for previous file copying method and device is unable to control duplication, the route of transmission of file, can not know
The problem of file is replicated by whom, can not trace the responsible party that file is divulged a secret.Using this in informatized life, working environment
Patent the method and device, the approach that can be replicated, be propagated with trace files control the file after duplication, in time
Know that other people replicate the behavior of file, the responsible party that identification file is leaked.
Technical solution provided by this patent has broad applicability, both can be used as an independent information system and has answered
With can also be used as intermediate system and final application Integrating；Both stand-alone service can be provided by cloud, it can also be with behaviour
Make the system integration as system level function.
The above, the only preferred embodiment of this patent, are not intended to limit the protection scope of this patent.It is all
Within the spirit and principle of this patent, any modification, equivalent replacement, improvement and so on should all include the protection in this patent
Within the scope of.
Claims (10)
1. a kind of method of tracking, control, identification file duplication, which is characterized in that the method is based on network connection and block
The node of chain, the method include that file uploads archiving method, file capability control method, file sending method, digital watermarking
Generation method, file reception store method, event notification method, identification checking method,
Further, the file refers to the electronic information being stored in all kinds of storage mediums, including permanently stores and temporarily deposit
Storage, also refers to the electronic information in cable network and transmission in wireless network.
2. method according to claim 1, which is characterized in that the file uploads archiving method, refers to file owner
(owner) file is included into the method that claim 1 the method is managed, specifically:
Digital watermarking (DM) is read from file, the digital watermarking is generated by the digital watermarking generation method, wherein including
File unique identification (id), file root mark (rid), file sender mark (sr), file issue time (st), file reception
Person identifies the information such as (rr), file reception time (rt), file ability license (ap), and file ability license (ap) includes to read to be permitted
Can (ap (r)), save license (ap (s)), copy propagation license (ap (c)), self-destruction license (ap (d)) etc.；
Further, according to file unique identification (id), the block of file propagation information is had recorded by retrieving in block chain, and is read
Take file propagation information (SI)；File propagation information includes file unique identification (id), file root mark (rid), file sending
Person identifies (sr), file issues time (st), document receivers identify (rr), file reception time (rt), the license of file ability
(ap) etc. information, file ability permit that (ap) includes to read license (ap (r)), save license (ap (s)), copy propagation license
(ap (d)) etc. is permitted in (ap (c)), self-destruction；
Further, when it is same main body that file owner (owner), document receivers, which identify (DM [rr], SI [rr]), or
When not including digital watermarking (DM) in file, file is normally included into this patent the method and is managed；
Further, when it is not same main body that file owner (owner), document receivers, which identify (DM [rr], SI [rr]),
Using the event notification method circular document sender (DM [sr], SI [sr]), file is normally included into side described in this patent
Method is managed.
3. method according to claim 1, which is characterized in that the file capability control method refers to file sender
(sender) before and after file is copied to document receivers (receiver), document receivers are further controlled
(receiver) ability of accessed document, save the ability of file, file replicated to the ability and file self-destruction of sending again
Ability method, specifically:
The text that file sender (sender) can record in the file propagation information (SI) on more new block chain at any time
Part ability permits (ap)；When consulting as document receivers (receiver), saving or replicate file again, need to verify digital water
The file ability recorded in file propagation information (SI) in print (DM), block chain permits (ap), when file ability permits (ap)
Self-destruction license (ap (d)) when being true, file self-destruction；When the reading of file ability license (ap) license (ap (r)) is true, permit
Perhaps document receivers (receiver) accessed document；When the preservation of file ability license (ap) license (ap (s)) is true, allow
Document receivers (receiver) save file；When the copy propagation of file ability license (ap) license (ap (c)) is true, permit
Perhaps document receivers (receiver), which replicate, issues file.
4. method according to claim 1, which is characterized in that the file sending method refers to file sender
(sender2) method that file is copied to document receivers (receiver2), specifically:
The selected file for needing to replicate of file sender (sender2) and document receivers (receiver2), are arranged file ability
Permit (ap2), read digital watermarking (DM1) from file, and read file ability license (ap1), according to file unique identification
(id1), the block of file propagation information is had recorded by retrieving in block chain, and reads file propagation information (SI1) and therein
File ability permits (ap1)；
Further, when the copy propagation license (ap (c) 1) of file ability license (ap1) allows file sender
(sender2), i.e., when (DM [rr1], SI [rr1]), issuing file, i.e. simultaneously SI [ap (c) 1] is true, creation text to DM [ap (c) 1]
Part propagates information (SI2), wherein newly created file unique identification (id2), and file root identifies (rid) as original root mark
(rid), file sender mark (sr2) is that original recipient identifies (rr1) namely file sender (sender), file
Issuing time (st2) is file sender (sender2) operating time, and it is newly selected file that document receivers, which identify (rr2),
Recipient (receiver2), file reception time (rt2) are the time that document receivers (receiver2) receives file, file
Ability permits the file ability license that (ap2) is file sender (sender2) setting；Newly created file propagation information
(SI2) it is saved in the block on block chain, and uses event notification method circular document sender (DM [sr1], SI
[sr1])；
Further, it if not including digital watermarking (DM) in the selected file for needing to replicate of file sender (sender2), creates
File propagation information (SI) is built, wherein creation file unique identification (id), file root identifies (rid) and file unique identification (id)
Identical, it is file sender (sender2) that file sender, which identifies (sr), and it is file sender that file, which issues time (st),
(sender2) operating time, when document receivers' mark (rr) is selected document receivers (receiver2), file reception
Between (rt) be document receivers (receiver2) receive file time, file ability permit (ap) be file sender
(sender2) the file ability license being arranged, newly created file propagation information (SI) are saved in the block on block chain.
5. method according to claim 1, which is characterized in that the digital watermarking generation method refers to according to file propagation
The method that information (SI) generates digital watermarking (DM), specifically:
It according to file propagation information (SI), creates digital watermarking (DM), wherein being identified comprising file unique identification (id), file root
(rid), file sender mark (sr), file issue time (st), document receivers identify (rr), file reception time
(rt), file ability license (ap), it is identical as corresponding informance in file propagation information (SI).
6. method according to claim 1, which is characterized in that the file reception store method refers to document receivers
(receiver) method for saving or checking the file of file sender (sender) duplication, specifically:
When document receivers (receiver) save or check file, the area of file propagation information is had recorded by retrieving in block chain
Block, and file propagation information (SI) is read, it updates file reception time (rt), the text on verifying digital watermark (DM), block chain
Part propagates the file ability recorded in information (SI) and permits (ap), when the self-destruction license (ap (d)) of file ability license (ap) is
When true, file self-destruction；When the reading of file ability license (ap) license (ap (r)) is true, allow document receivers
(receiver) accessed document；When the preservation of file ability license (ap) license (ap (s)) is true, allow document receivers
(receiver) file is saved；When document receivers (receiver) consult and save file, generated using the digital watermarking
Method generates digital watermarking (DM) and is embedded in file.
7. method according to claim 1, which is characterized in that the event notification method refers to generation and file sender
(sender) when the related event of file replicated, by the method for event circular document sender (sender), specifically:
It creates event block (E), wherein only comprising event unique identification (eid), event content (ec), event time (et), file
One mark (id), file root mark (rid), file sender mark (sr), document receivers identify (rr)；By event block (E)
It is saved in the block on block chain, is consulted for file sender (sender)；
Further, the event refers to that document receivers (receiver) check or download for the first time the event of file, also refers to
The event that document receivers (receiver) replicate file again is also referred to as file owner (owner), document receivers
Identify event when (DM [rr], SI [rr]) is not same main body.
8. method according to claim 1, which is characterized in that the identification checking method refers to that discovery file is leaked to text
When people other than part sender (sender) selected document receivers (receiver), which document receivers determined
(receiver) responsible method should be revealed file, specifically:
Digital watermarking (DM) is read from the file revealed, according to file unique identification (id), is remembered by being retrieved in block chain
The block of file propagation information has been recorded, and has read file propagation information (SI), from digital watermarking (DM) and file propagation information
(SI) document receivers recorded in identify in (rr), and the document receivers (receiver) of file, i.e. file have been revealed in identification
The responsible party of leakage event.
9. the device of a kind of tracking, control, identification file duplication, node of the described device based on network connection and block chain, institute
Stating device includes that file uploads profiling unit, file capability control unit, file issue unit, digital watermarking generation unit, connects
Receive storage unit, event notification unit, identification verification unit；
Further, the file refers to the electronic information being stored in all kinds of storage mediums, including permanently stores and temporarily deposit
Storage, also refers to the electronic information in cable network and transmission in wireless network.
10. device according to claim 9, which is characterized in that the file uploads profiling unit, refers to file owner
(owner) file is included into the unit that this patent described device is managed, specifically:
Digital watermarking (DM) is read from file, the digital watermarking is generated by the digital watermarking generation unit, wherein including
File unique identification (id), file root mark (rid), file sender mark (sr), file issue time (st), file reception
Person identifies the information such as (rr), file reception time (rt), file ability license (ap)；File ability license (ap) includes to read to be permitted
Can (ap (r)), save license (ap (s)), copy propagation license (ap (c)), self-destruction license (ap (d)) etc.；
According to file unique identification (id), the block of file propagation information is had recorded by retrieving in block chain, and reads file biography
Broadcast information (SI)；File propagation information includes file unique identification (id), file root mark (rid), file sender mark
(sr), file issues time (st), document receivers identify (rr), file reception time (rt), file ability license (ap) etc.
Information；File ability permit (ap) include read license (ap (r)), save license (ap (s)), copy propagation license (ap (c)),
(ap (d)) etc. is permitted in self-destruction；
When file owner (owner), document receivers' mark (DM [rr], SI [rr]) are same main body or in file not
When comprising digital watermarking (DM), file is normally included into this patent described device and is managed；
When it is not same main body that file owner (owner), document receivers, which identify (DM [rr], SI [rr]), using described
Event notification unit circular document sender (DM [sr], SI [sr]), file is normally included into this patent described device and carries out pipe
Reason；
Further, the file capability control unit refers to that file sender (sender) connects file is copied to file
Before and after receipts person (receiver), further controls the ability of document receivers (receiver) accessed document, saves text
The unit of the ability of part, the ability that file is replicated to sending again and the self-destructed ability of file, specifically:
The text that file sender (sender) can record in the file propagation information (SI) on more new block chain at any time
Part ability permits (ap)；When consulting as document receivers (receiver), saving or replicate file again, need to verify digital water
The file ability recorded in file propagation information (SI) in print (DM), block chain permits (ap), when file ability permits (ap)
Self-destruction license (ap (d)) when being true, file self-destruction；When the reading of file ability license (ap) license (ap (r)) is true, permit
Perhaps document receivers (receiver) accessed document；When the preservation of file ability license (ap) license (ap (s)) is true, allow
Document receivers (receiver) save file；When the copy propagation of file ability license (ap) license (ap (c)) is true, permit
Perhaps document receivers (receiver), which replicate, issues file；
Further, the file issue unit refers to that file is copied to document receivers by file sender (sender2)
(receiver2) unit, specifically:
The selected file for needing to replicate of file sender (sender2) and document receivers (receiver2), are arranged file ability
Permit (ap2), read digital watermarking (DM1) from file, and read file ability license (ap1), according to file unique identification
(id1), the block of file propagation information is had recorded by retrieving in block chain, and reads file propagation information (SI1) and therein
File ability permits (ap1)；
Further, when the copy propagation license (ap (c) 1) of file ability license (ap1) allows file sender
(sender2), i.e., when (DM [rr1], SI [rr1]), issuing file, i.e. simultaneously SI [ap (c) 1] is true, creation text to DM [ap (c) 1]
Part propagates information (SI2), wherein newly created file unique identification (id2), and file root identifies (rid) as original root mark
(rid), file sender mark (sr2) is that original recipient identifies (rr1) namely file sender (sender), file
Issuing time (st2) is file sender (sender2) operating time, and it is newly selected file that document receivers, which identify (rr2),
Recipient (receiver2), file reception time (rt2) are the time that document receivers (receiver2) receives file, file
Ability permits the file ability license that (ap2) is file sender (sender2) setting；Newly created file propagation information
(SI2) it is saved in the block on block chain, and uses event notification unit circular document sender (DM [sr1], SI
[sr1])；
Further, it if not including digital watermarking (DM) in the selected file for needing to replicate of file sender (sender2), creates
File propagation information (SI) is built, wherein creation file unique identification (id), file root identifies (rid) and file unique identification (id)
Identical, it is file sender (sender2) that file sender, which identifies (sr), and it is file sender that file, which issues time (st),
(sender2) operating time, when document receivers' mark (rr) is selected document receivers (receiver2), file reception
Between (rt) be document receivers (receiver2) receive file time, file ability permit (ap) be file sender
(sender2) the file ability license being arranged, newly created file propagation information (SI) are saved in the block on block chain；
Further, the digital watermarking generation unit refers to and generates digital watermarking (DM) according to file propagation information (SI)
Unit, specifically: it according to file propagation information (SI), creates digital watermarking (DM), wherein including file unique identification (id), text
Part root identifies (rid), file sender mark (sr), file sending time (st), document receivers' mark (rr), file reception
Time (rt), file ability license (ap) are identical as corresponding informance in file propagation information (SI)；
Further, the file reception storage unit refers to that document receivers (receiver) saves or check that file issues
The unit of the file of person (sender) duplication, specifically:
When document receivers (receiver) save or check file, the area of file propagation information is had recorded by retrieving in block chain
Block, and file propagation information (SI) is read, it updates file reception time (rt), the text on verifying digital watermark (DM), block chain
Part propagates the file ability recorded in information (SI) and permits (ap), when the self-destruction license (ap (d)) of file ability license (ap) is
When true, file self-destruction；When the reading of file ability license (ap) license (ap (r)) is true, allow document receivers
(receiver) accessed document；When the preservation of file ability license (ap) license (ap (s)) is true, allow document receivers
(receiver) file is saved；When document receivers (receiver) consult and save file, generated using the digital watermarking
Unit generates digital watermarking (DM) and is embedded in file；
Further, the event notification unit refers to generation thing related with the file that file sender (sender) replicates
When part, by the unit of event circular document sender (sender), specifically:
It creates event block (E), wherein only comprising event unique identification (eid), event content (ec), event time (et), file
One mark (id), file root mark (rid), file sender mark (sr), document receivers identify (rr)；By event block (E)
It is saved in the block on block chain, is consulted for file sender (sender)；
The event refers to that document receivers (receiver) check or download for the first time the event of file, also refers to document receivers
(receiver) event for replicating file again is also referred to when file owner (owner), document receivers identify (DM
[rr], SI [rr]) event when not being same main body；
Further, unit is investigated in the identification, refers to that discovery file is leaked to file sender (sender) selected text
When people other than part recipient (receiver), determines which document receivers (receiver) should reveal file and be responsible for
Unit, specifically:
Digital watermarking (DM) is read from the file revealed, according to file unique identification (id), is remembered by being retrieved in block chain
The block of file propagation information has been recorded, and has read file propagation information (SI), from digital watermarking (DM) and file propagation information
(SI) document receivers recorded in identify in (rr), and the document receivers (receiver) of file, i.e. file have been revealed in identification
The responsible party of leakage event.
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