CN107171785A - A kind of digital copyright management method based on block chain technology - Google Patents
A kind of digital copyright management method based on block chain technology Download PDFInfo
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- CN107171785A CN107171785A CN201710352676.0A CN201710352676A CN107171785A CN 107171785 A CN107171785 A CN 107171785A CN 201710352676 A CN201710352676 A CN 201710352676A CN 107171785 A CN107171785 A CN 107171785A
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- 238000007726 management method Methods 0.000 title claims abstract description 45
- 238000005516 engineering process Methods 0.000 title claims abstract description 22
- 238000012795 verification Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
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
- H04L9/06—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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- 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]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption key
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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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes
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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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Technology Law (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Storage Device Security (AREA)
Abstract
The present invention relates to digital copyright management field, a kind of digital copyright management method based on block chain technology is specifically disclosed.Aim to solve the problem that because traditional system for numeral copyright management is stored in the way of centralization caused by digital publishing rights and may result in links if administrative center goes wrong and can not carry out and then cause the problem of Consumer's Experience effect is poor, the application passes through network connection safety database of knowing together, copyright distributed data base, version information statement blockette chain, buy information blockette chain, so as to set up digital copyright management whole district block chain, while being encrypted by the way of being combined during foundation using public key and private key shared；Protect the owning side of digital publishing rights; publisher and the rights and interests of user; realize the safety database of storage shared key done business be broken or both be broken in the case of still can ensure the safety of copyright and related rights and interests, avoid may dispute while lifting user usage experience.
Description
Technical field
The present invention relates to digital copyright management field, it particularly relates to a kind of digital publishing rights based on block chain technology
Management method.
Background technology
The appearance of digital copyright management DRM system has greatly facilitated the making and transaction of digital content, the author of content
Their works can be issued in unprecedented inexpensive mode, can be relatively more effective while maximized acquisition interests
Copyright is managed.But traditional system for numeral copyright management stored in the way of centralization digital publishing rights owning side,
Publisher and the triangular relations of right of user, once system is delayed, machine user will be unable to consult copyright, if while number
According to being destroyed, the relations of right of three will not exist, and easily trigger interest conflicts even lawsuit.
The content of the invention
It is an object of the invention to：For above-mentioned because traditional system for numeral copyright management is stored in the way of centralization
If administrative center goes wrong and may result in links and can not carry out and then cause Consumer's Experience caused by digital publishing rights
The problem of effect is poor, the invention provides a kind of distributed general ledger system log data by block chain, can not be repaiied using it
The characteristic changed with machine of never delaying greatly protects the rights and interests of the owning side, publisher and user of digital publishing rights, in combination with close
Code learns correlation technique, it is possible to achieve still can ensure the safety of copyright and related rights and interests under special circumstances, is avoiding
The digital copyright management method based on block chain technology of the usage experience of user is lifted while possible dispute.
The technical solution adopted by the present invention is as follows：
A kind of digital copyright management method based on block chain technology, including it is following：
Step one, shared key is set up
User and author register to publisher, generate each self-corresponding public key and private key and are exchanged with each other；
Specifically, after user and author succeed in registration to publisher, generation public key and private key, private key and pertinent registration are believed
Breath is the unique mark of each side's identity, and public key is used to exchange the shared key for being used for encrypting copyright；
Step 2, sets up safety database
Encryption copyright generation shared key is simultaneously stored to safety database；
Specifically, the copyright of oneself is encrypted and signed using shared key by user, and shared key is used into distribution
Publisher is sent to after the public key encryption of business.Publisher receives the shared key of encryption, and safe number is stored in after the verification true and false
According in storehouse, it is ensured that even if safety database is broken, attacker can not also obtain the shared key of encryption copyright.
Step 3, sets up and updates copyright distributed data base
Copyright after being handled in step 2 by Hash calculation and stores cryptographic Hash and digital content to distribution
Database；
Specifically, the encryption copyright received is stored in distributed data base and provides certain redundancy so that ensure can
By property, even if this step can ensure that database is broken, attacker can not also understand the copyright of encryption.
Step 4, sets up and updates version information statement blockette chain
Version information statement is generated based on safety database and distributed data base and broadcasted to version information statement subregion
Block chain and real-time update；
Specifically, publisher, which is got after copyright using public key and log-on message of the content manager based on author, is
Author generate a version information statement, include in statement author information, publisher's information, the cryptographic Hash of the copyright and
Point to the pointer of the copyright.The information is then broadcast to formation version information statement blockette chain in network.This letter
Breath is present in permanent in block chain.
Step 5, sets up and upgrading purchase information blockette chain
Shared key and user's buying behavior generation purchase information and broadcast extremely purchase information blockette based on step one
Chain and real-time update；
Specifically, user is checked by disclosure manager and buys copyright, it is possible to downloaded after encryption
Digital content but it can not check, if user is interested can to buy the works, after user charges success, publisher counts this
The shared key of word works is taken out from safety database, should with the public key that purchase user is reused after the private key decryption of oneself
Shared key is encrypted, and is generated according to client public key and log-on message in a purchase information, information comprising shared after encryption
Key, the purchase information also comprising authorities such as useful life, number of times and reading write-ins, then be broadcast to be formed in block chain and purchased
Information blockette chain is bought, this information is present in permanent in block chain.
Step 6, sets up and updates digital copyright management whole district block chain
Based on step 2, step 3, step 4, the safety database in step 5, copyright distributed data base, version
Information declaration blockette chain is weighed, purchase information blockette chain sets up digital copyright management whole district block chain and real-time update.
User first passes through the data in Rights Manager inquiry block chain to obtain the purchase of oneself before copyright is checked
The associated rights included in information and the shared key encrypted for encrypting works are bought, is total to after being decrypted using oneself private key
Key is enjoyed, then decrypts copyright and is consulted.
Alternatively, the shared key of the encryption copyright in step 2 is set by author or publisher.
Author is locally completed using shared key to the ciphering process of copyright, and author is added using the public key of publisher
Close shared key is simultaneously sent to publisher；Or directly set by publisher.
Specifically, the version information statement in step 4 includes author information, publisher's information, the cryptographic Hash of copyright
With the pointer for pointing to the copyright.
Specifically, the purchase information in step 5 includes enjoying key, copyright useful life, copyright download time
Write-in authority is read with copyright.
Specifically, digital copyright management whole district block chain is in Node distribution in a network.
Alternatively, the digital copyright management whole district block chain in step 6 is alliance's block chain or privately owned block chain.
Each publisher can run privately owned block chain alone can also be operated together an area of alliance after being mutually authenticated
Block chain, its object is to reach common understanding, improve the transactions velocity of block chain faster.Publisher can also use publicly-owned block chain
If its performance meets needs.
Specifically, being set up in step 4 and updating version information statement blockette chain includes following sub-step：
(1) publisher gets copyright；
(2) publisher is that author generates copyright information sound using public key of the content manager based on author and log-on message
It is bright；
(3) version information statement information, which is broadcast in common recognition network, forms digital copyright management whole district block chain.
Specifically, set up in step 5 and upgrading purchase information blockette chain includes following sub-step：
(1) shared key of publisher's call number works, private key decryption；
(2) public key based on user is encrypted to copyright shared key；
(3) based on client public key and log-on message generation purchase information；
(4) purchase information, which is broadcast in common recognition network, forms purchase information blockette chain.
Preferably, safety database encryption copyright generation shared key is set up in step 2 to deposit after the verification true and false
Store up to safety database.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. by the distributed general ledger system log data of block chain, the characteristic pole with machine of never delaying can not be changed using it
The rights and interests of the big owning side, publisher and user that protect digital publishing rights, in combination with cryptography correlation technique, it is possible to achieve
Even if the distributed data base of storage digital content is broken, or the safety database of the storage shared key of publisher is attacked
It is broken or both be broken in the case of still can ensure the safety of copyright and related rights and interests, may dispute avoiding
While lifted user usage experience；
2. the block chain that publisher uses either privately owned chain alliance chain or publicly-owned chain, its Node distribution formula is present in
In network, the machine even if publisher delays, due to the normal work of block chain, the right of issue of publisher, the ownership of author, user
Right of access is also unaffected.User can still check the copyright bought.Simultaneously as in the going of block chain
Heart distributed nature, user can select nearlyer node to obtain the Crypted password of works, be conducive to lifting Consumer's Experience；
3. in distributed data base and certain redundancy is provided to ensure reliability, even if this step can ensure database quilt
Break through, attacker can not also understand the copyright of encryption；
4. encryption copyright generation shared key is stored to safety database after the verification true and false, copyright management is improved
The safety issue of process.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.By shown in accompanying drawing, above and other purpose of the invention, feature and advantage will become apparent from.In whole
Identical reference indicates identical part in accompanying drawing.
Fig. 1 is the structure chart of digital copyright management method of the present invention；
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
The present invention is elaborated with reference to Fig. 1.
Embodiment one
A kind of digital copyright management method based on block chain technology, including it is following：
Step one, shared key is set up
User and author register to publisher, generate each self-corresponding public key and private key and are exchanged with each other；
Specifically, after user and author succeed in registration to publisher, generation public key and private key, private key and pertinent registration are believed
Breath is the unique mark of each side's identity, and public key is used to exchange the shared key for being used for encrypting copyright；
Step 2, sets up safety database
Encryption copyright generation shared key is simultaneously stored to safety database；
Specifically, the copyright of oneself is encrypted and signed using shared key by user, and shared key is used into distribution
Publisher is sent to after the public key encryption of business.Publisher receives the shared key of encryption, and safe number is stored in after the verification true and false
According in storehouse, it is ensured that even if safety database is broken, attacker can not also obtain the shared key of encryption copyright.
Step 3, sets up and updates copyright distributed data base
Copyright after being handled in step 2 by Hash calculation and stores cryptographic Hash and digital content to distribution
Database；
Specifically, the encryption copyright received is stored in distributed data base and provides certain redundancy so that ensure can
By property, even if this step can ensure that database is broken, attacker can not also understand the copyright of encryption.
Step 4, sets up and updates version information statement blockette chain
Version information statement is generated based on safety database and distributed data base and broadcasted to version information statement subregion
Block chain and real-time update；
Specifically, publisher, which is got after copyright using public key and log-on message of the content manager based on author, is
Author generate a version information statement, include in statement author information, publisher's information, the cryptographic Hash of the copyright and
Point to the pointer of the copyright.The information is then broadcast to formation version information statement blockette chain in network.This letter
Breath is present in permanent in block chain.
Step 5, sets up and upgrading purchase information blockette chain
Shared key and user's buying behavior generation purchase information and broadcast extremely purchase information blockette based on step one
Chain and real-time update；
Specifically, user is checked by disclosure manager and buys copyright, it is possible to downloaded after encryption
Digital content but it can not check, if user is interested can to buy the works, after user charges success, publisher counts this
The shared key of word works is taken out from safety database, should with the public key that purchase user is reused after the private key decryption of oneself
Shared key is encrypted, and is generated according to client public key and log-on message in a purchase information, information comprising shared after encryption
Key, the purchase information also comprising authorities such as useful life, number of times and reading write-ins, then be broadcast to be formed in block chain and purchased
Information blockette chain is bought, this information is present in permanent in block chain.
Step 6, sets up and updates digital copyright management whole district block chain
Based on step 2, step 3, step 4, the safety database in step 5, copyright distributed data base, version
Information declaration blockette chain is weighed, purchase information blockette chain sets up digital copyright management whole district block chain and real-time update.
User first passes through the data in Rights Manager inquiry block chain to obtain the purchase of oneself before copyright is checked
The associated rights included in information and the shared key encrypted for encrypting works are bought, is total to after being decrypted using oneself private key
Key is enjoyed, then decrypts copyright and is consulted.
Embodiment two
On the basis of embodiment one, the shared key of the encryption copyright in step 2 passes through author；
Author is locally completed using shared key to the ciphering process of copyright, and author is added using the public key of publisher
Close shared key is simultaneously sent to publisher；Or directly set by publisher.
Embodiment three
The shared key of encryption copyright in step 2 is set by publisher.
Example IV
In a kind of any described digital copyright management method based on block chain technology of embodiment one to three, step 4
Version information statement include author information, publisher's information, the cryptographic Hash of copyright and the pointer for pointing to the copyright.
Embodiment five
In a kind of any described digital copyright management method based on block chain technology of embodiment one to four, step 5
Purchase information include enjoying key, copyright useful life, copyright download time and copyright and read write-in authority.
Specifically, digital copyright management whole district block chain is in Node distribution in a network.
Alternatively, the digital copyright management whole district block chain in step 6 is alliance's block chain or privately owned block chain.
Each publisher can run privately owned block chain alone can also be operated together an area of alliance after being mutually authenticated
Block chain, its object is to reach common understanding, improve the transactions velocity of block chain faster.Publisher can also use publicly-owned block chain
If its performance meets needs.
Embodiment six
In a kind of any described digital copyright management method based on block chain technology of embodiment one to five；In step 4
Setting up and updating version information statement blockette chain includes following sub-step：
(1) publisher gets copyright；
(2) publisher is that author generates copyright information sound using public key of the content manager based on author and log-on message
It is bright；
(3) version information statement information, which is broadcast in common recognition network, forms digital copyright management whole district block chain.
Embodiment seven
In a kind of any described digital copyright management method based on block chain technology of embodiment one to six；In step 5
Set up and upgrading purchase information blockette chain includes following sub-step：
(1) shared key of publisher's call number works, private key decryption；
(2) public key based on user is encrypted to copyright shared key；
(3) based on client public key and log-on message generation purchase information；
(4) purchase information, which is broadcast in common recognition network, forms purchase information blockette chain.
Embodiment eight
In embodiment one to a kind of any described digital copyright management method based on block chain technology of embodiment seven, step
Safety database encryption copyright generation shared key is set up in rapid two to store to safety database after the verification true and false.
Claims (9)
1. a kind of digital copyright management method based on block chain technology, it is characterised in that including following：
Step one, shared key is set up
User and author register to publisher, generate each self-corresponding public key and private key and are exchanged with each other；
Step 2, sets up safety database
Encryption copyright generation shared key is simultaneously stored to safety database；
Step 3, sets up and updates copyright distributed data base
Copyright after being handled in step 2 by Hash calculation and stores cryptographic Hash and digital content to distributed data
Storehouse；
Step 4, sets up and updates version information statement blockette chain
Version information statement is generated based on safety database and distributed data base and broadcasted to version information statement blockette chain
And real-time update；
Step 5, sets up and upgrading purchase information blockette chain
Shared key based on step one is bought information with user's buying behavior generation and broadcasted to purchase information blockette chain simultaneously
Real-time update；
Step 6, sets up and updates digital copyright management whole district block chain
Based on step 2, step 3, step 4, the safety database in step 5, copyright distributed data base, copyright letter
Breath statement blockette chain, purchase information blockette chain sets up digital copyright management whole district block chain and real-time update.
2. a kind of digital copyright management method based on block chain technology as claimed in claim 1, it is characterised in that step 2
In the shared key of encryption copyright pass through author or publisher and set.
3. a kind of digital copyright management method based on block chain technology as claimed in claim 1, it is characterised in that step 4
In version information statement include author information, publisher's information, the cryptographic Hash of copyright and the finger for pointing to the copyright
Pin.
4. a kind of digital copyright management method based on block chain technology as claimed in claim 1, it is characterised in that step 5
In purchase information include enjoying key, copyright useful life, copyright download time and copyright and read write-in power
Limit.
5. a kind of digital copyright management method based on block chain technology as claimed in claim 1, it is characterised in that digital version
Power management whole district block chain is in Node distribution in a network.
6. a kind of digital copyright management method based on block chain technology as claimed in claim 5, it is characterised in that step 6
In digital copyright management whole district block chain be alliance's block chain or privately owned block chain.
7. a kind of digital copyright management method based on block chain technology as claimed in claim 1, it is characterised in that step 4
Middle foundation and renewal version information statement blockette chain include following sub-step：
(1) publisher gets copyright；
(2) publisher is that author generates version information statement using public key of the content manager based on author and log-on message；
(3) version information statement information, which is broadcast in common recognition network, forms digital copyright management whole district block chain.
8. a kind of digital copyright management method based on block chain technology as claimed in claim 1, it is characterised in that step 5
Middle foundation and upgrading purchase information blockette chain include following sub-step：
(1) shared key of publisher's call number works, private key decryption；
(2) public key based on user is encrypted to copyright shared key；
(3) based on client public key and log-on message generation purchase information；
(4) purchase information, which is broadcast in common recognition network, forms purchase information blockette chain.
9. a kind of digital copyright management method based on block chain technology as claimed in claim 1, it is characterised in that step 2
In set up safety database encryption copyright generation shared key by verification the true and false after store to safety database.
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| CN109344566A (en) * | 2018-02-13 | 2019-02-15 | 李茗 | A kind of copyright managing method based on block chain, device and equipment |
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