CN106603244B - A kind of digital literary property protection method and device - Google Patents
A kind of digital literary property protection method and device Download PDFInfo
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- CN106603244B CN106603244B CN201611265974.8A CN201611265974A CN106603244B CN 106603244 B CN106603244 B CN 106603244B CN 201611265974 A CN201611265974 A CN 201611265974A CN 106603244 B CN106603244 B CN 106603244B
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- actual rights
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
- H04L9/3249—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures using RSA or related signature schemes, e.g. Rabin scheme
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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
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/60—Digital content management, e.g. content distribution
- H04L2209/603—Digital right managament [DRM]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
- H04L2463/101—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Storage Device Security (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a kind of digital literary property protection method and device, simplifies the flow of digital copyright protecting and improves the validity of digital copyright protecting.The digital literary property protection method, including：Obtain claimed first digital document；First digital document is added in the actual rights block of digital document protection copyright chain；First digital document is handled according to the header information of the actual rights block to obtain the second digital document, the header information comprises at least the copyright block identification of the actual rights block and the mapping mark of upper copyright block and the mapping mark of actual rights block.
Description
Technical field
The present invention relates to computer information technology field, more particularly to a kind of digital literary property protection method and device.
Background technology
With the development of Internet technology, the propagation of the digital document such as digital picture, audio, video, word on network
It is more and more, because digital content can easily be duplicated and change, the digital content propagated on network exist it is substantial amounts of pirate and
Infringement problem, it is therefore, more and more important for the copyright protection of digital content.
Digital copyright protecting (Digital Right Management, DRM) is that the numeral propagated in network is made at present
Product carry out the Main Means of copyright protection, technology that it refers to protect intellectual property in digital content process of exchange,
Instrument and processing procedure.DRM is to take the system scheme including information security technology means, ensure it is legal, have
While the user of authority is to digital information (such as digital picture, audio, video, word) normal use, digital information is protected
Creator and the copyright of owner, legal income is obtained according to copyright information, and numeral can be differentiated when copyright is encroached on
The copyright ownership of information and the true and false of copyright information.
Data encryption is the digital copyright protection technology of core, is that digital document is encrypted, by the numeral after encryption
File is uploaded to file server, and certificate is uploaded into authorization server, user using when need to get digital document and
It could be used after certificate, the key that only authorized user can just be decrypted, this mode is needed by authorization server certification,
Process CIMS is complicated, and the digital document encrypted easily is tampered, so as to reduce the validity of digital copyright protecting.
The content of the invention
The invention provides a kind of digital literary property protection method and device, simplifies flow and the raising of digital copyright protecting
The validity of digital copyright protecting.
The embodiments of the invention provide a kind of digital literary property protection method, including：
Obtain claimed first digital document；
First digital document is added in the actual rights block of digital document protection copyright chain；
First digital document is handled according to the header information of the actual rights block to obtain the second numeral text
Part, the header information comprise at least the copyright block identification of the actual rights block and the mapping mark of upper copyright block and worked as
The mapping mark of preceding copyright block.
It is preferred that obtaining claimed first digital document, specifically include：
The request of digital document copyright protection is received, first numeral is carried in the digital document copyright protection request
File；Or
The request of digital document copyright protection is received, is carried in the digital document copyright protection request using private key to institute
The time for stating the first digital document and upload first digital document is handled the 3rd obtained digital document；
Checking is carried out to the 3rd digital document using the public key of storage and obtains first digital document and upload institute
State the time of the first digital document.
It is preferred that first digital document is handled to obtain second according to the header information of the actual rights block
Digital document, specifically include：
It is added to the header information of the actual rights block as summary info in first digital document, obtains institute
State the second digital document.
It is preferred that be stored with the N number of copyright block generated sequentially in time in digital document protection copyright chain, except working as
The digital document of predetermined number is stored with other copyright blocks beyond preceding copyright block；And
The mapping mark of other any copyright blocks in addition to actual rights block is obtained in accordance with the following methods：
The file content included in the digital document of the predetermined number stored according to the copyright block, is determined using hash algorithm
Cryptographic Hash corresponding to the copyright block；
The mapping that the cryptographic Hash determined is defined as to the copyright block identifies.
Alternatively, methods described also includes:
When the digital document stored in actual rights block reaches the predetermined number, new copyright block is created, establishment
The copyright block identification of copyright block that the cryptographic Hash of a copyright block is stored with the header information of copyright block and is newly created.
It is preferred that the mapping mark of the actual rights block is obtained in accordance with the following methods：
According to the file content of all digital documents stored in actual rights block, current version is determined using hash algorithm
Weigh cryptographic Hash corresponding to block；
The mapping that the cryptographic Hash determined is defined as to actual rights block identifies.
The embodiments of the invention provide a kind of digital copyright protector, including：
Obtaining unit, for obtaining claimed first digital document；
Adding device, for first digital document to be added to the actual rights block of digital document protection copyright chain
In；
Processing unit, first digital document handle for the header information according to the actual rights block
To the second digital document, the header information comprises at least the copyright block identification of the actual rights block and reflecting for upper copyright block
Penetrate mark and the mapping mark of actual rights block.
It is preferred that the obtaining unit specifically includes：
First receiving subelement, for receiving the request of digital document copyright protection, the digital document copyright protection request
In carry first digital document；Or
Second receiving subelement, for receiving the request of digital document copyright protection, the digital document copyright protection request
In carry using private key to first digital document and upload time of first digital document and handled what is obtained
3rd digital document；
Subelement is obtained, checking is carried out to the 3rd digital document for the public key using storage and obtains first number
Word file and the time for uploading first digital document.
It is preferred that the processing unit is specifically used for：
It is added to the header information of the actual rights block as summary info in first digital document, obtains institute
State the second digital document.
It is preferred that be stored with the N number of copyright block generated sequentially in time in digital document protection copyright chain, except working as
The digital document of predetermined number is stored with other copyright blocks beyond preceding copyright block.
It is preferred that the processing unit is additionally operable to obtain other any versions in addition to actual rights block in accordance with the following methods
Weigh the mapping mark of block：The file content included in the digital document of the predetermined number stored according to the copyright block, utilizes Hash
Algorithm determines cryptographic Hash corresponding to the copyright block；The mapping that the cryptographic Hash determined is defined as to the copyright block identifies.
Alternatively, described device also includes：
Creating unit, when the digital document for being stored in actual rights block reaches the predetermined number, create new
Copyright block, the copyright of copyright block for being stored with the cryptographic Hash of a copyright block in the header information of the copyright block of establishment and newly creating
Block identification.
It is preferred that the processing unit is additionally operable to obtain the mapping mark of the actual rights block in accordance with the following methods：Root
According to the file content of all digital documents stored in actual rights block, determined using hash algorithm corresponding to actual rights block
Cryptographic Hash；The mapping that the cryptographic Hash determined is defined as to actual rights block identifies.
Beneficial effects of the present invention include：
In digital literary property protection method and device provided in an embodiment of the present invention, server obtains claimed first number
After word file, the first digital document is added in the actual rights block of digital document protection copyright chain, according to actual rights block
Header information the first digital document is handled to obtain the second digital document, wherein, the header information of actual rights block is extremely
The mapping mark of the mapping mark and actual rights block of copyright block identification including actual rights block and upper copyright block less, on
During stating, it is not necessary to digital document is authenticated with authorization server, simplifies the flow of digital copyright protecting, and
If criminal wants to distort some digital document by copyright protection, due to including upper one in each digital document
The header information of copyright block, the mapping comprising upper copyright block identifies in header information, if it is desired to distorting digital document
Talking about needs to realize after all digital documents in copyright chain are distorted, and improves the validity of digital copyright protecting.
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.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the application scenarios schematic diagram of digital literary property protection method in the embodiment of the present invention；
Fig. 2 is the implementation process diagram of digital literary property protection method in the embodiment of the present invention；
Fig. 3 is the structural representation of digital copyright protector in the embodiment of the present invention.
Embodiment
For the validity for simplifying the flow of digital copyright protecting, improving digital copyright protecting, the invention provides one kind
Digital literary property protection method and device.
The realization principle of digital literary property protection method provided in an embodiment of the present invention is：Server obtains claimed the
After one digital document, the first digital document is added in the actual rights block of digital document protection copyright chain, according to current version
The header information of power block is handled the first digital document to obtain the second digital document, wherein, the head letter of actual rights block
Copyright block identification and the mapping mark of upper copyright block and the mapping mark of actual rights block of the breath including at least actual rights block
Know, in said process, it is not necessary to digital document is authenticated with authorization server, simplifies the stream of digital copyright protecting
Journey, and if criminal wants to distort some digital document by copyright protection, due in each digital document
The header information of upper copyright block is included, the mapping that upper copyright block is included in header information identifies, if it is desired to distorting a number
Need to realize after all digital documents in copyright chain are distorted if word file, this is for a people or an enterprise
All it is difficult thing, so as to improve the validity of digital copyright protecting.
The preferred embodiments of the present invention are illustrated below in conjunction with Figure of description, it will be appreciated that described herein
Preferred embodiment is merely to illustrate and explain the present invention, and is not intended to limit the present invention, and in the case where not conflicting, this hair
The feature in embodiment and embodiment in bright can be mutually combined.
With reference first to Fig. 1, it is the application scenarios schematic diagram of digital literary property protection method provided in an embodiment of the present invention, is used
Family 10 needs the digital document of copyright protection to server 12 by the client upload installed in terminal 11, wherein, client
It can be the browser of webpage, or the client being installed in mobile terminal, such as mobile phone, tablet personal computer etc..It is specific real
Shi Shi, user 10 upload the digital document for needing copyright protection, server 12 connects by the client installed in registration terminal 11
Request copyright protection digital document is received, claimed digital document is added to the actual rights of digital document protection copyright chain
In block, the header information of actual rights block is added in the digital document as summary info and obtains a new digital document
Downloaded for user, wherein, digital document protection copyright chain is the record sheet that digital document is stored in server, be stored with according to when
Between several copyright blocks for being sequentially generated, the numeral text of predetermined number is stored with other copyright blocks in addition to actual rights block
Part, a copyright block is often formed, current unix timestamps are added to the digital document stored in the copyright block and carry out Hash calculation
A specific character string is generated by preset algorithm after obtained cryptographic Hash splicing, the character string is disclosed onto internet.
User is downloaded after the digital document that with the addition of summary info, can be according to the character announced on summary info and internet
The true and false of string checking digital document, can be supplied to law court as voucher when being necessary.
It is communicatively coupled between terminal 11 and server 12 by network, the network can be LAN, wide area network etc..
Terminal 11 can be portable equipment (such as：Mobile phone, tablet personal computer, notebook computer etc.), or PC (PC,
Personal Computer), server 12 can be any equipment that can provide Internet service.
With reference to Fig. 1 application scenarios, the digital publishing rights according to exemplary embodiment of the invention are described with reference to Figure 2
The method of protection.Understand spirit and principles of the present invention it should be noted that above-mentioned application scenarios are for only for ease of and show,
Embodiments of the present invention are unrestricted in this regard.On the contrary, embodiments of the present invention can apply to applicable appoint
What scene.
As shown in Fig. 2 it is implementation process diagram of digital literary property protection method provided in an embodiment of the present invention, can be with
Comprise the following steps：
S21, obtain claimed first digital document.
When it is implemented, server can obtain claimed first digital document by following either type：
First way：
Server receives the digital document copyright protection request that user sends, and is carried in the request of digital document copyright protection
First digital document.
The second way：
Server receives the digital document copyright protection request that user sends, and is carried in the request of digital document copyright protection
The 3rd obtained digital document is handled to the time of the first digital document of the first digital document and upload using private key, serviced
Device using storage public key to the 3rd digital document carry out checking obtain the first digital document and upload the first digital document when
Between.
Specifically, time of the user using the private key that server is issued to the first digital document of the first digital document and upload
Signed to obtain the 3rd digital document, the 3rd digital document is decrypted in server by utilizing public key, obtains the first numeral text
Part and the time for uploading the first digital document, after being verified, the first digital document uploaded for user provides copyright protection, i.e.,
Perform follow-up step S22 and step S23.
S22, first digital document is added in the actual rights block of digital document protection copyright chain.
When it is implemented, server is added to the current of digital document protection copyright chain after obtaining the first digital document
In copyright block.
Specifically, digital document protection copyright chain can be the record sheet of storage digital document in server, digital document
N (N is the positive integer more than or equal to 1) the individual copyright block generated sequentially in time is stored with protection copyright chain, except current version
The digital document of predetermined number is stored with other copyright blocks beyond power block.
When it is implemented, the mapping of other any copyright blocks in addition to actual rights block can be obtained in accordance with the following methods
Mark：The file content included in the digital document of the predetermined number stored according to the copyright block, being determined using hash algorithm should
Cryptographic Hash corresponding to copyright block, the mapping that the cryptographic Hash determined is defined as to the copyright block identifies, specifically, by the copyright block
File content in the digital document of the predetermined number of middle storage carries out the cryptographic Hash that Hash calculation obtains and is defined as the copyright block
Mapping mark.
When it is implemented, the mapping mark of actual rights block can be obtained in accordance with the following methods：According in actual rights block
The file content of all digital documents stored, cryptographic Hash corresponding to actual rights block is determined using hash algorithm, will be determined
The cryptographic Hash gone out is defined as the mapping mark of actual rights block.
Specifically, the file content of all digital documents stored in actual rights block is carried out Hash calculation by server
Obtained cryptographic Hash is defined as the mapping mark of actual rights block.The quantity of digital document in actual rights block reaches default
During quantity, new copyright block is created, the cryptographic Hash of a copyright block and new wound are stored with the header information of the copyright block of establishment
The copyright block identification for the copyright block built, predetermined number can be arranged as required to, be not construed as limiting here, such as, it is assumed that present count
Measure as 1000, actual rights block is the second copyright block, when the digital document quantity in the second copyright block it is full 1000 when, create the 3rd
Copyright block, the third edition is weighed to be stored with the file content in 1000 digital documents in the second copyright block in the header information of block
Carry out the mapping mark for i.e. the second copyright block of cryptographic Hash that Hash calculation obtains and the copyright block identification 3 of third edition power block.
In addition, being stored with the digital document of predetermined number in other copyright blocks in addition to actual rights block, one is often formed
Individual copyright block, current unix timestamps are added to the digital document stored in the copyright block and carry out the cryptographic Hash that Hash calculation obtains
A specific character string is generated by preset algorithm after splicing, the character string is published on internet, wherein, refer here to
Preset algorithm can be but be not limited to MD5 algorithms.
S23, according to the header information of the actual rights block first digital document is handled to obtain the second number
Word file, the header information comprise at least the actual rights block copyright block identification and upper copyright block mapping identify with
And the mapping mark of actual rights block.
When it is implemented, server is handled the first digital document to obtain according to the header information of actual rights block
Two digital documents.
Specifically, server is added to the header information of actual rights block as summary info in the first digital document,
Obtain the second digital document.Wherein, the header information of actual rights block comprises at least the copyright block identification of actual rights block and upper
The mapping mark of one copyright block and the mapping mark of actual rights block.When user's download with the addition of the second numeral of summary info
After file, its position in digital copyright protecting copyright chain can be positioned according to the copyright block identification in summary info, i.e.,
For which digital document of which copyright block.
Digital literary property protection method provided in an embodiment of the present invention, server obtain claimed first digital document
Afterwards, the first digital document is added in the actual rights block of digital document protection copyright chain, according to the head of actual rights block
Information is handled the first digital document to obtain the second digital document, wherein, the header information of actual rights block comprises at least
The mapping mark of the mapping mark and actual rights block of the copyright block identification of actual rights block and upper copyright block, said process
In, it is not necessary to digital document is authenticated with authorization server, simplifies the flow of digital copyright protecting, due to digital text
Include the mapping mark of a copyright block in the header information for the actual rights block that part includes, if criminal wants to usurp
It could be realized after changing some digital document, it is necessary to which all digital documents in copyright chain are distorted, this is to a people or one
All it is difficult thing for enterprise, in addition, after user downloads the second digital document, summary info and internet can be utilized
The true and false of the character string checking digital document of upper announcement, can be supplied to law court as voucher, so as to improve when being necessary
The validity of digital copyright protecting.
Based on same inventive concept, digital copyright protector is provided in the embodiment of the present invention, due to above-mentioned digital version
It is similar to method to weigh the principle of protection device solution problem, therefore the implementation of said apparatus may refer to the implementation of method, repeat
Part repeats no more.
As shown in figure 3, it is the structural representation of digital copyright protector provided in an embodiment of the present invention, can wrap
Include：
Obtaining unit 31, for obtaining claimed first digital document；
Adding device 32, for first digital document to be added to the actual rights block of digital document protection copyright chain
In；
Processing unit 33, first digital document is handled for the header information according to the actual rights block
Obtain the second digital document, the header information comprises at least the copyright block identification of the actual rights block and upper copyright block
The mapping mark of mapping mark and actual rights block.
It is preferred that the obtaining unit 31 specifically includes：
First receiving subelement, for receiving the request of digital document copyright protection, the digital document copyright protection request
In carry first digital document；Or
Second receiving subelement, for receiving the request of digital document copyright protection, the digital document copyright protection request
In carry using private key to first digital document and upload time of first digital document and handled what is obtained
3rd digital document；
Subelement is obtained, checking is carried out to the 3rd digital document for the public key using storage and obtains first number
Word file and the time for uploading first digital document.
It is preferred that the processing unit is specifically used for：
It is added to the header information of the actual rights block as summary info in first digital document, obtains institute
State the second digital document.
It is preferred that be stored with the N number of copyright block generated sequentially in time in digital document protection copyright chain, except working as
The digital document of predetermined number is stored with other copyright blocks beyond preceding copyright block.
It is preferred that the processing unit can be also used for obtaining other in addition to actual rights block in accordance with the following methods
The mapping mark of one copyright block：The file content included in the digital document of the predetermined number stored according to the copyright block, utilize
Hash algorithm determines cryptographic Hash corresponding to the copyright block；The mapping that the cryptographic Hash determined is defined as to the copyright block identifies.
Alternatively, digital copyright protector provided by the invention, can also include：
Creating unit, when the digital document for being stored in actual rights block reaches the predetermined number, create new
Copyright block, the copyright of copyright block for being stored with the cryptographic Hash of a copyright block in the header information of the copyright block of establishment and newly creating
Block identification.
It is preferred that the processing unit is additionally operable to obtain the mapping mark of the actual rights block in accordance with the following methods：Root
According to the file content of all digital documents stored in actual rights block, determined using hash algorithm corresponding to actual rights block
Cryptographic Hash；The mapping that the cryptographic Hash determined is defined as to actual rights block identifies.
For convenience of description, above each several part is divided by function describes respectively for each module (or unit).Certainly, exist
The function of each module (or unit) can be realized in same or multiple softwares or hardware when implementing of the invention.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (8)
- A kind of 1. digital literary property protection method, it is characterised in that including：Obtain claimed first digital document；First digital document is added in the actual rights block of digital document protection copyright chain；First digital document is handled according to the header information of the actual rights block to obtain the second digital document, institute State copyright block identification and the mapping mark of upper copyright block and current version of the header information including at least the actual rights block Weigh the mapping mark of block；Wherein, the N number of copyright block generated sequentially in time is stored with the digital document protection copyright chain, except actual rights The digital document of predetermined number is stored with other copyright blocks beyond block；And obtain remove actual rights block in accordance with the following methods The mapping mark of other any copyright blocks in addition：The text included in the digital document of the predetermined number stored according to the copyright block Part content, cryptographic Hash corresponding to the copyright block is determined using hash algorithm；The cryptographic Hash determined is defined as the copyright block Mapping mark；And the mapping mark of the actual rights block is obtained in accordance with the following methods：Stored according in actual rights block All digital documents file content, determine cryptographic Hash corresponding to actual rights block using hash algorithm；The Kazakhstan that will be determined Uncommon value is defined as the mapping mark of actual rights block.
- 2. the method as described in claim 1, it is characterised in that obtain claimed first digital document, specifically include：The request of digital document copyright protection is received, the first numeral text is carried in the digital document copyright protection request Part；OrThe request of digital document copyright protection is received, is carried in the digital document copyright protection request using private key to described the The time of one digital document and upload first digital document is handled the 3rd obtained digital document；Checking is carried out to the 3rd digital document using the public key of storage to obtain first digital document and upload described the The time of one digital document.
- 3. the method as described in claim 1, it is characterised in that according to the header information of the actual rights block to described first Digital document is handled to obtain the second digital document, is specifically included：It is added to the header information of the actual rights block as summary info in first digital document, obtains described Two digital documents.
- 4. the method as described in claim 1, it is characterised in that also include：When the digital document stored in actual rights block reaches the predetermined number, new copyright block, the copyright of establishment are created The copyright block identification of copyright block that the cryptographic Hash of a copyright block is stored with the header information of block and is newly created.
- A kind of 5. digital copyright protector, it is characterised in that including：Obtaining unit, for obtaining claimed first digital document；Adding device, for first digital document to be added in the actual rights block of digital document protection copyright chain；Processing unit, first digital document is handled for the header information according to the actual rights block to obtain Two digital documents, the header information comprise at least the copyright block identification of the actual rights block and the mapping mark of upper copyright block Know and the mapping of actual rights block identifies；Wherein, the N number of copyright block generated sequentially in time is stored with the digital document protection copyright chain, except actual rights The digital document of predetermined number is stored with other copyright blocks beyond block；AndThe processing unit is additionally operable to obtain the mapping of other any copyright blocks in addition to actual rights block in accordance with the following methods Mark：The file content included in the digital document of the predetermined number stored according to the copyright block, being determined using hash algorithm should Cryptographic Hash corresponding to copyright block；The mapping that the cryptographic Hash determined is defined as to the copyright block identifies；And in accordance with the following methods Obtain the mapping mark of the actual rights block：According to the file content of all digital documents stored in actual rights block, Cryptographic Hash corresponding to actual rights block is determined using hash algorithm；The cryptographic Hash determined is defined as to the mapping of actual rights block Mark.
- 6. device as claimed in claim 5, it is characterised in that the obtaining unit specifically includes：First receiving subelement, for receiving the request of digital document copyright protection, taken in the digital document copyright protection request With first digital document；OrSecond receiving subelement, for receiving the request of digital document copyright protection, taken in the digital document copyright protection request With to first digital document and uploading time of first digital document using private key and handled the 3rd obtained Digital document；Subelement is obtained, checking is carried out to the 3rd digital document for the public key using storage and obtains the first numeral text Part and the time for uploading first digital document.
- 7. device as claimed in claim 5, it is characterised in that the processing unit is specifically used for：It is added to the header information of the actual rights block as summary info in first digital document, obtains described Two digital documents.
- 8. device as claimed in claim 5, it is characterised in that also include：Creating unit, when the digital document for being stored in actual rights block reaches the predetermined number, create new copyright Block, the copyright block mark of copyright block for being stored with the cryptographic Hash of a copyright block in the header information of the copyright block of establishment and newly creating Know.
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| CN109446751A (en) * | 2018-09-30 | 2019-03-08 | 深圳市迷你玩科技有限公司 | Generate the method, apparatus and storage medium of the data set including multiple subfiles |
| CN111901640B (en) * | 2020-08-14 | 2021-07-16 | 南京百家云科技有限公司 | Method and device for protecting copyright of streaming media |
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| CN101355428A (en) * | 2008-09-11 | 2009-01-28 | 上海交通大学 | Method for protecting data integrity using increment checkout |
| CN102819704A (en) * | 2012-07-20 | 2012-12-12 | 北京亿赛通科技发展有限责任公司 | Document copyright protection method for intelligent terminal |
| CN105719172A (en) * | 2016-01-19 | 2016-06-29 | 布比（北京）网络技术有限公司 | Information issuing method and device |
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| WO2006032942A1 (en) * | 2004-09-23 | 2006-03-30 | Nokia Corporation | Method and device for protecting digital content in mobile applications |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355428A (en) * | 2008-09-11 | 2009-01-28 | 上海交通大学 | Method for protecting data integrity using increment checkout |
| CN102819704A (en) * | 2012-07-20 | 2012-12-12 | 北京亿赛通科技发展有限责任公司 | Document copyright protection method for intelligent terminal |
| CN105719172A (en) * | 2016-01-19 | 2016-06-29 | 布比（北京）网络技术有限公司 | Information issuing method and device |
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