CN111382400B - DCI-based block chain copyright implementation method and system - Google Patents
DCI-based block chain copyright implementation method and system Download PDFInfo
- Publication number
- CN111382400B CN111382400B CN202010156123.XA CN202010156123A CN111382400B CN 111382400 B CN111382400 B CN 111382400B CN 202010156123 A CN202010156123 A CN 202010156123A CN 111382400 B CN111382400 B CN 111382400B
- Authority
- CN
- China
- Prior art keywords
- dci
- identity
- abstract
- block chain
- wallet address
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010276 construction Methods 0.000 claims description 16
- 239000000284 extract Substances 0.000 claims description 5
- 238000012795 verification Methods 0.000 description 5
- 238000013507 mapping Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Technology Law (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Bioethics (AREA)
- General Health & Medical Sciences (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses a method and a system for realizing block chain copyright based on DCI, which relate to the technical field of digital copyright and solve the technical problems that the copyright is low in authority confirming efficiency and cannot be guaranteed. The author only needs to provide a source file during copyright registration, a digital copyright unique identifier DCI is obtained after registration, the DCI is used as a blind watermark to be embedded into the source file after being signed by an author private key, and the safety of the source file in a use layer is guaranteed. And writing the DCI abstract and the user digital identity into the block chain together, wherein the DCI abstract and the user digital identity are in one-to-one correspondence, and directly inquiring the block chain when the right is required to be confirmed so as to obtain the author information corresponding to the source file. And meanwhile, the block chain stores the name of the righter and the certificate of the righter, so that the block chain copyright is more convenient and efficient when being verified, and the privacy can be better protected.
Description
Technical Field
The present disclosure relates to the field of digital rights technologies, and in particular, to a method and a system for implementing a block chain copyright based on DCI.
Background
Original works (characters, audio and video and the like) created by creators are not perfect in copyright protection, the right determining speed is low, and the cost is high, so that the rights and interests of the creators cannot be guaranteed.
Disclosure of Invention
The present disclosure provides a method and a system for implementing block chain copyright based on DCI, which aims to implement quick right-confirming of original works and ensure rights and interests of creators.
The technical purpose of the present disclosure is achieved by the following technical solutions:
a block chain copyright realization method based on DCI comprises a copyright construction flow and a copyright authentication flow, wherein the copyright construction flow comprises the following steps:
a user registers a copyright of a source file to obtain a DCI (digital rights management) which corresponds to physical identity information of the user, wherein the physical identity information comprises a name of a right holder and a certificate of the right holder;
creating a wallet account, wherein the wallet account comprises a public key and a private key, the public key deduces a first wallet address, and a user holds the private key;
establishing a digital identity for a user, and hashing the name of the righter and the certificate of the righter to obtain a first identity abstract, wherein the digital identity comprises the first wallet address and the first identity abstract;
the user signs the DCI by using the private key to obtain signature information, and the signature information is embedded into the source file as a blind watermark;
hashing the DCI to obtain a DCI abstract, writing the first wallet address, the first identity abstract and the DCI abstract into a block chain, and establishing a corresponding relation;
the copyright authentication process comprises the following steps:
the user sends the source file, the DCI, the first wallet address, the public key and the first identity abstract to a third party;
a third party extracts a blind watermark from the source file, then checks the blind watermark through the public key, and if the blind watermark passes the check, the third party hashes the DCI to obtain the DCI abstract;
calling a block chain to acquire a second wallet address corresponding to the DCI abstract, wherein if the second wallet address is consistent with the first wallet address, the DCI corresponds to the digital identity of the user;
and then calling a block chain to acquire a second identity abstract corresponding to the second wallet address, and if the second identity abstract is consistent with the first identity abstract, finishing copyright authentication.
A DCI-based block chain copyright implementation system comprises a copyright construction module and a copyright authentication module, wherein the copyright construction module comprises:
the copyright registration unit is used for registering the copyright of the source file by a user to acquire a digital copyright unique identifier DCI, wherein the DCI corresponds to physical identity information of the user, and the physical identity information comprises an authorized person name and an authorized person certificate;
the wallet creating unit is used for creating a wallet account, wherein the wallet account comprises a public key and a private key, the public key deduces a first wallet address, and a user holds the private key;
the digital identity construction unit is used for constructing a digital identity for a user, and hashing the name of the authorized person and the certificate of the authorized person to obtain a first identity abstract, wherein the digital identity comprises the first wallet address and the first identity abstract;
the signature unit is used for signing the DCI by using the private key to obtain signature information by a user, and then embedding the signature information into the source file as a blind watermark;
the writing unit is used for carrying out Hash on the DCI to obtain a DCI abstract, writing the first wallet address, the first identity abstract and the DCI abstract into a block chain and establishing a corresponding relation;
the copyright authentication module includes:
the sending unit is used for sending the source file, the DCI, the first wallet address, the public key and the first identity abstract to a third party by a user;
the third party extracts the blind watermark from the source file, then checks the blind watermark through the public key, and hashes the DCI to obtain the DCI abstract if the blind watermark passes the check;
an authentication unit including a first authentication unit and a second authentication unit;
the first authentication unit calls a block chain to acquire a second wallet address corresponding to the DCI abstract, and if the second wallet address is consistent with the first wallet address, the DCI corresponds to the digital identity of the user;
and the second authentication unit calls a block chain to acquire a second identity abstract corresponding to the second wallet address, and completes copyright authentication if the second identity abstract is consistent with the first identity abstract.
Further, the source file includes literary works, audio, and video.
The beneficial effect of this disclosure lies in: the method and the system for realizing the block chain copyright based on the DCI firstly construct the copyright and then carry out authentication when a third party needs to use the copyright so as to ensure that the rights and interests of creators are guaranteed. The author only needs to provide a source file during copyright registration, a digital copyright unique identifier DCI is obtained after registration, the DCI is used as a blind watermark to be embedded into the source file after being signed by an author private key, and the safety of the source file in a use layer is guaranteed.
And writing the DCI abstract and the user digital identity into the block chain together, wherein the DCI abstract and the user digital identity are in one-to-one correspondence, and directly inquiring the block chain when the right is required to be confirmed so as to obtain the author information corresponding to the source file. Meanwhile, the block chain stores the name of the rightful person and the certificate of the rightful person, so that the block chain copyright is more convenient and efficient to verify, and privacy can be better protected.
Drawings
FIG. 1 is a copyright construction flow diagram;
FIG. 2 is a copyright validation flow diagram;
fig. 3 is a block diagram of the disclosed system.
Detailed Description
The technical scheme of the disclosure will be described in detail with reference to the accompanying drawings.
In the description of the present disclosure, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated, but merely as distinguishing between different components.
Fig. 1 is a flowchart of copyright construction of the present disclosure, as shown in fig. 1, generally, copyright registration is performed in registration of a chinese copyright protection center or other provincial copyright protection centers, a source file of copyright includes written works, audio and video, etc., an author needs to provide a corresponding name of an obliquest and an obliquest certificate (i.e., physical identity information of the author) when performing copyright registration, if the author is an individual, the author provides a personal name and a personal identity card, if the author is an enterprise and public institution, the author provides a name of an institution, a business license, a official seal, etc., and finally, copyright registration is completed. And the copyright center issues DCI for the current source file after checking that the DCI is not wrong, and the DCI is bound with the physical identity information of the author.
In a specific embodiment, the wallet account has a key pair definition, namely a private key and a public key, the public key derives a first wallet address, the creator holds the private key, and the first wallet address is public. The private key firstly generates a key random seed by 32 bytes of pseudo-random numbers with 63 bits (the possibility is 256 times of 2, brute force cracking is basically impossible), the random seed generates a 32-byte private key by a secp256k1^5 (elliptic curve algorithm) curve, then signs the private key by an ecdsa-secp256k1 (elliptic curve digital signature algorithm), and maps the private key into a 65-byte public key. Then, the hash value (32 bytes) of the public key (non-compressed public key) is calculated by a keccak-256 hash algorithm, and the first wallet address takes the last 20 bytes of the hashed public key.
As a specific embodiment, when constructing a digital identity for an author, the author sends its identity information to a certificate authority, where the identity information includes physical identity information and a digital identity, the physical identity is an authorized person name and an authorized person certificate, and the authorized person name and the authorized person certificate are hashed to obtain a first identity digest, and the digital identity includes a first wallet address and a first identity digest. And then the verification mechanism verifies the legality and validity of the identity of the author, writes the digital identity into the block chain after the verification is finished, and establishes a corresponding relation between the first wallet address and the first identity abstract.
After the digital identity is established, the DCI is signed by using an ecdsa-secp256k1 (elliptic curve digital signature algorithm) to obtain signature information, and the signature information is embedded into the source file as a blind watermark. And then the DCI is hashed by keccak-256 to obtain a DCI abstract, and the DCI abstract is written into the block chain and establishes a corresponding relation with the digital identity stored on the block chain.
Fig. 2 is a copyright verification flow chart, and as shown in fig. 2, a user sends a source file, DCI, a first wallet address, a public key, and a first identity digest to a third party, then the third party extracts a blind watermark from the source file, then verifies the blind watermark by using the provided public key through the ecdsa-secp256k1, and if the blind watermark passes the verification, hashes the DCI by using the keccak-256 to obtain the DCI digest. After the DCI abstract is obtained, calling a block chain to obtain a second wallet address corresponding to the DCI abstract, wherein if the second wallet address is consistent with the first wallet address, the DCI corresponds to the digital identity of the user; and then calling the block chain to acquire a second identity abstract corresponding to the second wallet address, and finishing copyright authentication if the second identity abstract is consistent with the first identity abstract.
Fig. 3 is a flowchart of a system according to the present disclosure, where the system for implementing DCI-based blockchain copyrights according to the present disclosure includes a copyright construction module and a copyright authentication module, where the copyright construction module includes a copyright registration unit, a wallet creation unit, a digital identity construction unit, a signature unit, and a write-in unit; the copyright authentication module comprises a sending unit, a signature verification unit and an authentication unit, wherein the authentication unit comprises a first authentication unit and a second authentication unit. For specific functions of each module, reference is made to the method disclosed in the present disclosure, and details are not repeated.
The interaction between the invention and the block chain is realized through an intelligent contract, and the realization principle is as follows:
(1) Creating a mapping by an intelligent contract:
1.1 idInfo: mapping: the key is an address, and the value is a digital identity information structure;
1.1.1 For storing identity information on a blockchain;
1.1.2 Idinfo: a structure body;
1.1.2.1 Attribute is identity digest;
1.2 idNumberHashs: mapping: the identity abstract after key hash, value is the wallet address;
1.2.1 For ensuring the uniqueness of the digital identities on the chain block chain;
1.3 Dciinfo: mapping: the key is the hashed DCI, and the value is a wallet address;
1.3.1 For constructing block chain copyrights (correspondence of DCI to digital identity);
(2) And (3) constructing a function:
owner: the current intelligent contract creator has all read-write authorities (namely authentication mechanisms and the like);
(3) Adding authority control:
3.1 Set onlyOwner: function modifiers, i.e. only the intelligent contract creator can write to the blockchain;
3.2 Get: no authority control, i.e. all people have access (i.e. other platforms, etc.);
(4) Calling an intelligent contract to create a digital identity, and parameters:
4.1 Required): an address type parameter, i.e. to which wallet address a digital identity is to be added;
4.2 Required): byte type parameters, namely identity digests corresponding to the current address;
4.3 Internal judgment of the intelligent contract is to simply newly build a digital identity or newly build the digital identity after the original identity is reset;
4.3.1 Judging whether the current link has an identity corresponding to the address, and if not, determining that the link is newly established;
4.3.2 If yes, the method continues to judge whether the original wallet address is consistent with the newly-imported wallet address;
4.3.3 Inconsistent reset of the original identity and construction of a new identity;
(5) Invoking an intelligent contract to query a digital identity:
5.1 Parameters) of: required: a wallet address type parameter, i.e. a digital identity to be obtained;
5.1.1 Query all contents of the digital identity;
5.1.1.1 Return value of): byte type, identity abstract corresponding to byte type current wallet address;
5.1.2 ) query identity summaries;
5.1.2.1 Return value of): byte type, identity digest;
(6) Calling an intelligent contract to construct a block chain copyright:
6.1 The process of constructing the corresponding relation between the digital copyright and the digital identity is to construct the block chain copyright;
6.2 Required): byte type parameter, DCI abstract, which digital copyright is added with corresponding digital identity;
6.3 Required): address type parameter, wallet address of digital identity corresponding to current digital copyright;
(7) Calling an intelligent contract to inquire a wallet address of a digital identity corresponding to the block chain copyright;
7.1 Parameters) of: required: byte type parameter, DCI abstract, namely the wallet address of the digital identity corresponding to which block chain copyright is to be inquired;
7.1.1 Return value of): a wallet address type.
The foregoing is an exemplary embodiment of the present disclosure, and the scope of the present disclosure is defined by the claims and their equivalents.
Claims (4)
1. A block chain copyright realization method based on DCI is characterized by comprising a copyright construction flow and a copyright authentication flow, wherein the copyright construction flow comprises the following steps:
a user registers copyright of a source file to obtain a digital copyright unique identifier DCI, wherein the DCI corresponds to physical identity information of the user, and the physical identity information comprises an authorized person name and an authorized person certificate;
creating a wallet account, wherein the wallet account comprises a public key and a private key, the public key deduces a first wallet address, and a user holds the private key;
constructing a digital identity for a user, and carrying out hash on the name of the rightful person and the certificate of the rightful person to obtain a first identity abstract, wherein the digital identity comprises the first wallet address and the first identity abstract;
the user signs the DCI by using the private key to obtain signature information, and the signature information is embedded into the source file as a blind watermark;
hashing the DCI to obtain a DCI abstract, writing the first wallet address, the first identity abstract and the DCI abstract into a block chain, and establishing a corresponding relation;
the copyright authentication process comprises the following steps:
the user sends the source file, the DCI, the first wallet address, the public key and the first identity abstract to a third party;
a third party extracts a blind watermark from the source file, then checks the blind watermark through the public key, and if the blind watermark passes the check, the third party hashes the DCI to obtain the DCI abstract;
calling a block chain to acquire a second wallet address corresponding to the DCI abstract, wherein if the second wallet address is consistent with the first wallet address, the DCI corresponds to the digital identity of the user;
and then calling a block chain to acquire a second identity abstract corresponding to the second wallet address, and if the second identity abstract is consistent with the first identity abstract, finishing copyright authentication.
2. The method of claim 1, wherein the source file includes literary works, audio, and video.
3. A DCI-based block chain copyright implementation system is characterized by comprising a copyright construction module and a copyright authentication module, wherein the copyright construction module comprises:
the copyright registration unit is used for registering the copyright of the source file by a user to acquire a digital copyright unique identifier DCI, wherein the DCI corresponds to physical identity information of the user, and the physical identity information comprises an authorized person name and an authorized person certificate;
the wallet creating unit is used for creating a wallet account, wherein the wallet account comprises a public key and a private key, the public key deduces a first wallet address, and a user holds the private key;
the digital identity construction unit is used for constructing a digital identity for a user, and hashing the name of the authorized person and the certificate of the authorized person to obtain a first identity abstract, wherein the digital identity comprises the first wallet address and the first identity abstract;
the signature unit is used for signing the DCI by a user by using the private key to obtain signature information, and then the signature information is embedded into the source file as a blind watermark;
the writing unit is used for carrying out Hash on the DCI to obtain a DCI abstract, writing the first wallet address, the first identity abstract and the DCI abstract into a block chain and establishing a corresponding relation;
the copyright authentication module includes:
the sending unit is used for sending the source file, the DCI, the first wallet address, the public key and the first identity abstract to a third party by a user;
the third party extracts the blind watermark from the source file, then checks the blind watermark through the public key, and hashes the DCI to obtain the DCI abstract if the blind watermark passes the check;
an authentication unit including a first authentication unit and a second authentication unit;
the first authentication unit calls a block chain to acquire a second wallet address corresponding to the DCI abstract, and if the second wallet address is consistent with the first wallet address, the DCI corresponds to the digital identity of the user;
and the second authentication unit calls a block chain to acquire a second identity abstract corresponding to the second wallet address, and completes copyright authentication if the second identity abstract is consistent with the first identity abstract.
4. The DCI-based block chain copyright enforcement system of claim 3 wherein the source files include written works, audio and video.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010156123.XA CN111382400B (en) | 2020-03-09 | 2020-03-09 | DCI-based block chain copyright implementation method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010156123.XA CN111382400B (en) | 2020-03-09 | 2020-03-09 | DCI-based block chain copyright implementation method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111382400A CN111382400A (en) | 2020-07-07 |
| CN111382400B true CN111382400B (en) | 2022-10-21 |
Family
ID=71221473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010156123.XA Expired - Fee Related CN111382400B (en) | 2020-03-09 | 2020-03-09 | DCI-based block chain copyright implementation method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111382400B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116305017B (en) * | 2023-03-10 | 2023-11-03 | 西安工程大学 | Image copyright protection method based on mask and identification hidden embedding |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108734577A (en) * | 2018-04-04 | 2018-11-02 | 蔡汉宏 | A kind of copyright trading method and its system |
| SG11202002100TA (en) * | 2019-05-20 | 2020-04-29 | Alibaba Group Holding Ltd | Copyright protection based on hidden copyright information |
| CN110727927B (en) * | 2019-09-24 | 2023-10-20 | 上海大学 | Digital product protection system and method based on block chain technology |
-
2020
- 2020-03-09 CN CN202010156123.XA patent/CN111382400B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN111382400A (en) | 2020-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107403303B (en) | Signing method of electronic contract system based on block chain deposit certificate | |
| CN108599954B (en) | Identity verification method based on distributed account book | |
| US7797541B2 (en) | Method and apparatus for providing cellular telephone service using an authenticating cellular telephone device | |
| CN110800254B (en) | System and method for generating digital signature | |
| CN110493273B (en) | Identity authentication data processing method and device, computer equipment and storage medium | |
| CN102332980B (en) | Method and system for managing electronic file | |
| CN106778343A (en) | It is a kind of that the data sharing method of private data is related to based on block chain | |
| CN111159681A (en) | Block chain-based digital identity implementation method and system | |
| DE602004031978D1 (en) | Prevent identity theft in electronic communications | |
| US11917071B2 (en) | Data protection using universal tagging | |
| CN105554018A (en) | Network real name verification method | |
| CN1547344A (en) | Method of applying timestamp in remote signature system | |
| CN113934993A (en) | Electronic seal based on electronic handwriting signature technology | |
| CN111382400B (en) | DCI-based block chain copyright implementation method and system | |
| CN101534296B (en) | Public network information integrity and time point existence proof method and system | |
| CN105912894B (en) | A method of it is anti-fake that passport NO. being used for E-seal printed text | |
| CN113672991A (en) | Public electronic contract contracting method based on block chain technology | |
| CN112613889A (en) | Privacy protection method and system for enterprise DID identity system | |
| CN114841701B (en) | Digital artwork anti-theft credible transaction method and device based on NFT | |
| CN109687967B (en) | Electronic signature method and device | |
| CN114169888B (en) | Universal type cryptocurrency custody method supporting multiple signatures | |
| CN104766172A (en) | Verifiable seal mold obtaining method | |
| CN110955858B (en) | Information management method of network license platform | |
| CN113935073A (en) | Seal generation and verification method supporting main body and content authentication | |
| CN109635594A (en) | Electronics execution of contract and the anti-counterfeit authentication method for signing process again |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |