WO2020186726A1 - 基于区块链的黑名单数据共享方法及系统 - Google Patents

基于区块链的黑名单数据共享方法及系统 Download PDF

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Publication number
WO2020186726A1
WO2020186726A1 PCT/CN2019/109349 CN2019109349W WO2020186726A1 WO 2020186726 A1 WO2020186726 A1 WO 2020186726A1 CN 2019109349 W CN2019109349 W CN 2019109349W WO 2020186726 A1 WO2020186726 A1 WO 2020186726A1
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Prior art keywords
blacklist data
key
points
business
data
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PCT/CN2019/109349
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English (en)
French (fr)
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盛伟
郑志探
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苏宁云计算有限公司
苏宁易购集团股份有限公司
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Priority to CA3175939A priority Critical patent/CA3175939C/en
Publication of WO2020186726A1 publication Critical patent/WO2020186726A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/17—Details of further file system functions
    • G06F16/176—Support for shared access to files; File sharing support
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/14—Details of searching files based on file metadata
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/14—Details of searching files based on file metadata
    • G06F16/148—File search processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
    • G06F16/162—Delete operations
    • 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
    • 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
    • G06F21/602—Providing cryptographic facilities or services
    • 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
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • 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
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2107—File encryption

Definitions

  • the present invention relates to the technical field of block chains, in particular to a method and system for sharing blacklist data based on block chains.
  • the blacklist is a list of actors or legal persons who record serious negative credit. Once they are included in the blacklist, it means that the credit of the actor has problems. Cooperation with the actors or legal persons on the blacklist will increase their cooperation risks.
  • sources of blacklist data such as financial institutions, credit card issuing institutions, courts, and telecommunications companies. Since the sources of blacklist data include government functional agencies and large and medium-sized enterprises, due to its scattered sources, In the process of operation, it is difficult to effectively integrate and share the blacklist data of the above-mentioned units. Therefore, many private organizations that specialize in collecting the blacklist data of each unit and then sell them for profit have been derived, allowing enterprises to purchase by paying.
  • the blacklist data is open, fragmented and open and opaque, the blacklist data obtained by different private organizations are different in quantity and quality. Therefore, even if the company purchases the blacklist at a high price The list data also cannot guarantee the integrity and validity of the blacklist data.
  • the purpose of the present invention is to provide a blacklist data sharing method and system based on blockchain, which can ensure the convenience and effectiveness of blacklist data acquisition by introducing blockchain technology into the blacklist data application scenario, and improve the blacklist data The shared value of list data.
  • one aspect of the present invention provides a method for sharing blacklist data based on blockchain, including:
  • Member institutions build their own network nodes, and sequentially network the network nodes to which each member institution belongs to build a blockchain, and the network nodes include business nodes and points nodes;
  • a blacklist data query request is initiated via any business node.
  • the associated point node will pay the points to the point address of the target blacklist data holder, and pay the points at the holding institution After monitoring the credits into the account, use the private key matching the random public key to decrypt the packaged target blacklist data, and at the same time call the public key of the query institution to reversely encrypt the decrypted target blacklist data and return it to the query institution for decryption and query; or,
  • the business node of the blacklist data holding institution initiates a blacklist data deletion request, and deletes the target blacklist data after the signature verification is passed, and deducts the points in the associated point address.
  • the blockchain includes a business alliance chain and a point alliance chain.
  • the business alliance chain is composed of a plurality of business nodes networking
  • the point alliance chain is composed of a plurality of points node networking.
  • the blacklist data upload request is initiated via any service node, and the generated symmetric key is used to encrypt the blacklist data while using a random public key to encrypt the symmetric key, and the encrypted blacklist data is encrypted with the encrypted blacklist data.
  • the symmetric key is packaged on the chain, and when the account is settled on the chain, the associated point node requests the transfer of points to the designated point address.
  • the member institution initiates a blacklist data upload request to the business alliance chain through its business node, and at the same time specifies the point address of the income points;
  • the associated point node When the on-chain operation of the blacklist data is monitored and triggered, the associated point node requests the point alliance chain to transfer points to the designated point address.
  • the method of encrypting the blacklist data by using a randomly generated symmetric key and encrypting the symmetric key by using the random public key and performing a packing and uploading operation includes:
  • blacklist data Associating and marking the blacklist data, the point address and the random public key, where the blacklist data includes name, ID, and detailed data;
  • the blacklist data query request is initiated via any business node, and when the target blacklist data is not uploaded by the query organization, the points are transferred to the point address of the target blacklist data holder through the associated point node , And use the private key matching the random public key to decrypt the packaged target blacklist data after the holding institution monitors that the points are entered into the account, and at the same time call the public key of the query institution to reversely encrypt the decrypted target blacklist data and return
  • the methods to decrypt the inquiry to the inquiry organization include:
  • the member institution initiates a blacklist data query request to the business alliance chain through its business node, and judges whether it is uploaded by the query institution according to the point address associated with the blacklist data to be queried;
  • the points node includes multiple points addresses, and the query institution can select any point address with sufficient points to pay points to the point address of the target blacklist data holding institution.
  • the process of querying blacklist data further includes:
  • a request for basic information of blacklist data is initiated via any business node, the name and ID of the target blacklist data are entered as key values into the business alliance chain, and the basic information of the target blacklist data is returned by calling the smart contract.
  • the method of initiating a blacklist data deletion request by the business node of the blacklist data holding institution itself, and deleting the target blacklist data after the signature verification is passed, and deducting the points in the associated point address includes:
  • the blacklist data holding institution initiates a blacklist data deletion request through its own business node, and judges whether there are sufficient points in its associated point address through the business alliance chain;
  • the block chain-based blacklist data sharing method provided by the present invention has the following beneficial effects:
  • the block chain is constructed by sequentially connecting the network nodes corresponding to each member institution to the network, and each network node includes mutually related business nodes and points nodes, Among them, the business node is used to initiate a business request and store blacklist data, and the point node is used to execute the corresponding point transaction and record the point information when the business request is settled; for example, any member institution can pass the corresponding business
  • the node initiates a blacklist data upload request, uses the generated symmetric secret key to encrypt the blacklist data, and uses a random public key to encrypt the symmetric secret key.
  • the encrypted blacklist data and the encrypted symmetric secret key are packaged and uploaded to the chain.
  • the associated point node When the chain is settled, the associated point node requests to transfer points to the designated point address; or any member institution can initiate a blacklist data query request through the corresponding business node.
  • the target blacklist data When the target blacklist data is not uploaded by the query institution, Then, through the associated point node, the points are paid to the point address of the target blacklist data holder, and the private key matching the random public key is used to decrypt the packaged target blacklist data after the holder monitors that the points are entered into the account.
  • Call the public key of the query organization to reversely encrypt the decrypted target blacklist data and return it to the query organization for decryption and query; or, any member organization can initiate a blacklist data deletion request through the corresponding business node, and delete it after the signature verification is passed.
  • any member institution broadcasts a business request to the business alliance chain through its business node, it can execute the corresponding business request operation in the business alliance chain according to the consensus result.
  • the executed business request is a blacklist data upload request
  • any of the blacklist data query request and the blacklist data deletion request a certain point reward or deduction is given to the relevant parties who perform this operation through the point alliance chain, creating a way of using shared blacklist data to exchange points
  • the “paid” model in turn encourages member institutions to share blacklist data in the business alliance chain in a timely and proactive manner based on the above-mentioned point incentive policy, increasing the scale and value of blacklist data sharing; in addition, due to the decentralized nature of the blockchain Therefore, the use of the block chain-based blacklist data sharing method provided by the present invention does not require a centralized operating organization and has the characteristics of low operating cost. Through the encrypted storage of key data, it can also effectively protect the privacy of customers and is safe and reliable. specialty.
  • Another aspect of the present invention provides a block chain-based blacklist data sharing system, which is applied to the block chain-based blacklist data sharing method described in the above technical solution, and the system includes:
  • the block chain construction unit is used for member institutions to build their own network nodes, and sequentially network the network nodes to which each member institution belongs to build a blockchain, and the network nodes include business nodes and points nodes;
  • the blacklist data uploading unit is used to initiate a blacklist data upload request via any business node, use the generated symmetric key to encrypt the blacklist data while using a random public key to encrypt the symmetric key, and pass the encrypted blacklist
  • the data and the encrypted symmetric key are packaged on the chain, and when the account is settled on the chain, the associated point node requests the transfer of points to the designated point address;
  • the blacklist data query unit is used to initiate a blacklist data query request via any business node.
  • the associated point node will send the point address of the target blacklist data holder institution Pay the points, and use the private key matching the random public key to decrypt the packaged target blacklist data after the holding institution monitors that the points are credited, and at the same time call the public key of the query institution to reverse the decrypted target blacklist data Encrypt and return to the query agency for decryption query;
  • the blacklist data deletion unit is used to initiate a blacklist data deletion request via the business node of the blacklist data holding institution, and delete the target blacklist data and deduct the points in the associated point address after the signature verification is passed.
  • the blacklist data uploading unit includes:
  • Upload request module used by member institutions to initiate a blacklist data upload request to the business alliance chain through their business node, and at the same time specify the point address of the income points;
  • Duplicate checking module used to calculate the key value of the blacklist data to be uploaded, and judge whether the blacklist data to be uploaded has been stored in the business alliance chain by the key value;
  • the first execution module is used to encrypt the blacklist data with a randomly generated symmetric key and use a random public key to encrypt the symmetric key and perform the packaging and chaining operation when the judgment result is no. If the result is yes, end the current uploading of blacklist data;
  • the point transaction module is used to request the point alliance chain to transfer points to the designated point address when the linking operation of the blacklist data is triggered.
  • the blacklist data query unit includes:
  • the query request module is used for member institutions to initiate a blacklist data query request to the business alliance chain through their business nodes, and judge whether it is uploaded by the query institution according to the point address associated with the blacklist data to be queried;
  • the second execution module is used to, when the judgment result is yes, call the private key associated with the credit address to decrypt the encrypted symmetric key to extract the plaintext symmetric key, and then use the plaintext symmetric key to decrypt the folder
  • the judgment result is no, request the point alliance chain to pay points to the point address of the target blacklist data holder through the associated point node, and use it to match the associated point address after the holding institution monitors that the points are credited to the account
  • the private key decrypts the encrypted symmetric secret key, extracts the plaintext symmetric secret key, calls the public key of the query agency to reverse the plaintext symmetric secret key, and then packages the reverse encrypted symmetric secret key and the undecrypted details data to return Decrypt and obtain it from the inquiry agency.
  • the blacklist data deletion unit includes:
  • the deletion request module is used for the blacklist data holding institution to initiate a blacklist data deletion request via its own business node, and determine whether there are sufficient points in its associated point address through the business alliance chain;
  • the third execution module is used to sign the target blacklist data with the private key matching the random public key when the judgment result is yes, and send the signature information along with the blacklist data deletion request to the business alliance chain, After verification by the business alliance chain, delete the target blacklist data and deduct the points in the associated point address. Otherwise, the current blacklist data deletion operation is ended; when the judgment result is no, the current blacklist data deletion operation is directly ended .
  • the beneficial effects of the block chain-based blacklist data sharing system provided by the present invention are the same as the beneficial effects of the block chain-based blacklist data sharing method provided by the above technical solutions, and will not be repeated here. .
  • FIG. 1 is a schematic flowchart of a method for sharing blacklist data based on a blockchain in Embodiment 1 of the present invention
  • Figure 2 is a schematic diagram of the architecture of the business alliance chain and the point alliance chain;
  • Fig. 3 is a schematic diagram of the process of obtaining points by uploading blacklist data through any business node in Fig. 1;
  • Fig. 4 is a schematic diagram of the process of querying blacklist data and paying points through any business node in Fig. 1;
  • FIG. 5 is a schematic diagram of the process of deleting blacklist data and deducting points through any business node in FIG.
  • Fig. 6 is a block diagram of the block chain-based blacklist data sharing system in the second embodiment of the present invention.
  • This embodiment provides a method for sharing blacklist data based on blockchain, including:
  • the member institutions build their own network nodes, and sequentially network the network nodes of each member institution to build a blockchain.
  • the network nodes include business nodes and points nodes; a blacklist data upload request is initiated via any business node, and the generated symmetric secret is used.
  • the key encrypts the blacklist data while using the random public key to encrypt the symmetric secret key.
  • the encrypted blacklist data and the encrypted symmetric secret key are packaged on the chain, and the associated point node requests the designated The points address is transferred into points; or, a blacklist data query request is initiated through any business node, and when the target blacklist data is not uploaded by the query institution, the associated point node will send the points address of the target blacklist data holder institution Pay the points, and use the private key matching the random public key to decrypt the packaged target blacklist data after the holding institution monitors that the points are entered into the account.
  • the public key of the query institution is called to reversely encrypt the decrypted target blacklist data and return Decrypt the query to the query institution; or, initiate a blacklist data deletion request via the business node of the blacklist data holding institution itself, and delete the target blacklist data after the signature verification is passed, and deduct the points in the associated point address.
  • a blockchain is constructed by sequentially connecting network nodes corresponding to each member institution to the network, and each network node includes interrelated business nodes And points nodes, where the business nodes are used to initiate business requests and store blacklist data, and the points nodes are used to execute corresponding points transactions and record points information when the business request is settled; for example, any member institution may Initiate a blacklist data upload request through the corresponding business node, use the generated symmetric key to encrypt the blacklist data while using a random public key to encrypt the symmetric key, and pack the encrypted blacklist data and the encrypted symmetric key on the chain , And when the account is settled on the chain, the associated point node requests to transfer points to the designated point address; or any member institution can initiate a blacklist data query request through the corresponding business node.
  • the target blacklist data When the target blacklist data is not queried by When the institution uploads, it will pay the points to the point address of the holding institution of the target blacklist data through the associated point node, and use the private key matching the random public key to package the target blacklist after the holding institution monitors the credit entry Data decryption, and at the same time, the public key of the query organization is called to reversely encrypt the decrypted target blacklist data and return it to the query organization for decryption and query; or, any member organization can initiate a blacklist data deletion request through the corresponding business node and sign it After the verification is passed, delete the target blacklist data and deduct the points in the associated point address.
  • any member institution broadcasts a business request to the business alliance chain through its business node, it can execute the corresponding business request operation in the business alliance chain according to the consensus result.
  • the executed business request is a blacklist data upload request
  • any of the blacklist data query request and the blacklist data deletion request a certain point reward or deduction is given to the relevant parties who perform this operation through the point alliance chain, creating a way of using shared blacklist data to exchange points
  • the “paid” model in turn encourages member institutions to share blacklist data in the business alliance chain in a timely and proactive manner based on the above-mentioned point incentive policy, increasing the scale and value of blacklist data sharing; in addition, due to the decentralized nature of the blockchain Therefore, the use of the block chain-based blacklist data sharing method provided by the present invention does not require a centralized operating organization and has the characteristics of low operating cost. Through the encrypted storage of key data, it can also effectively protect the privacy of customers and is safe and reliable. specialty.
  • blacklist service request in the above embodiment is not limited to the three methods of blacklist data upload request, blacklist data query request and blacklist data deletion request, and may also include other achievable services. Requests, such as blacklist data download requests, blacklist data modification requests, etc.
  • the blockchain in the above embodiment includes a business alliance chain, a point alliance chain, and an API server.
  • the business alliance chain is composed of multiple business nodes networked, and the point alliance chain is networked by multiple point nodes.
  • the API server encapsulates the SDK package of the business alliance chain and the point alliance chain and the external service framework.
  • the function of the API server is to connect the business alliance chain and the point alliance chain and provide external service interfaces; among them, the business alliance chain includes the business alliance chain ontology
  • the business alliance chain ontology is used for the operation of smart contracts and provides blacklist data storage and sharing services
  • the event monitoring server is used to monitor events sent by the business alliance chain ontology, and at the same time initiate a point transfer request to the point alliance chain.
  • a blacklist data upload request is initiated via any service node, and the generated symmetric key is used to encrypt the blacklist data while using a random public key to encrypt the symmetric key.
  • the blacklist data and the encrypted symmetric key are packaged on the chain, and when the account is set on the chain, the associated point node requests the transfer of points to the designated point address.
  • the methods include:
  • the member institution initiates a blacklist data upload request to the business alliance chain through its business node, and at the same time specifies the point address of the income points; calculates the key value of the blacklist data to be uploaded, and judges whether the business alliance chain has stored the blacklist data to be uploaded by the key value List data; when the judgment result is no, use the randomly generated symmetric key to encrypt the blacklist data and use the random public key to encrypt the symmetric key and perform the packaging and chaining operation. When the judgment result is yes, end the current The uploading operation of blacklist data; when the on-chain operation of monitoring the blacklist data is triggered, the associated point node requests the point alliance chain to transfer points to the designated point address.
  • the above-mentioned method of encrypting the blacklist data using a randomly generated symmetric key and using a random public key to encrypt the symmetric key and performing the packing and chaining operation includes:
  • the blacklist data includes the name, ID and detail data; use the randomly generated symmetric key to encrypt the detail data, and store the name, ID and encrypted detail data In the same folder; use a random public key to encrypt the symmetric secret key twice, and then package the symmetric secret key and the folder for the second encryption and upload it to the business alliance chain.
  • a member institution when a member institution needs to upload the blacklist data it has to the business alliance chain, it will first desensitize the name and ID of the blacklist data, and specify a point address and random public key and the blacklist to be uploaded Data association mark, and then calculate the key value of the blacklist data to be uploaded based on the name, ID and detailed data of the blacklist data to be uploaded, and compare it with the key value of the blacklist data stored in the business alliance chain to determine the blacklist to be uploaded Whether the list data already exists in the business alliance chain, when the judgment result is no, use the randomly generated symmetric key to encrypt the detail data, and store the name, ID and encrypted detail data in the same folder, and then use it later
  • the above-mentioned associated random public key encrypts the symmetric secret key twice, and finally packs the second encrypted symmetric secret key and folder and uploads it to the business alliance chain.
  • the judgment result is yes, the current upload operation of blacklist data is ended. Until the event monitoring server monitors the blacklist data
  • the blacklist data storage field of the package and chain includes the symmetric key and the folder encrypted with the symmetric key
  • a random public address associated with the uploading organization address must be used.
  • the key separately encrypts the symmetric secret key twice.
  • the encrypted symmetric secret key is stored in the business alliance chain together with the encrypted folder. It is not necessary for this member institution to use each blacklist data
  • the symmetric secret key of each business node is maintained, which reduces the complexity of the system while ensuring security.
  • the accounting characteristics of each business node can be fully utilized to prevent Loss of the symmetric key.
  • this embodiment For the query of blacklist data, this embodiment provides two query modes, namely a charged query mode and a free query mode.
  • the specific implementation steps of this embodiment are described as follows:
  • For the basic information query mode initiate a basic information query request for blacklist data through any business node, enter the name and ID of the target blacklist data as a key value into the business alliance chain, and return the basic information of the target blacklist data by calling the smart contract .
  • the member institution initiates a blacklist data query request to the business alliance chain through its business node, and judges whether it is uploaded by the query institution according to the point address associated with the blacklist data to be queried; when the judgment result is If yes, call the private key associated with the point address to decrypt the encrypted symmetric key to extract the clear text symmetric key, and then use the clear text symmetric key to decrypt the detailed data in the folder; when the judgment result is no, pass the associated points
  • the node requests the point alliance chain to pay points to the point address of the target blacklist data holder, and after the holder monitors that the points are entered into the account, the private key matching the associated point address is used to decrypt the encrypted symmetric key and extract the plaintext symmetric
  • the public key of the query agency is called to reversely encrypt the plaintext symmetric secret key, and then the reverse encrypted symmetric key and the undecrypted detailed data are packaged and returned to the query agency for decryption.
  • the points node includes multiple points addresses, and the query institution can choose any point address with sufficient points to pay points to the point address of the target blacklist data holding institution.
  • the method in which the business node of the blacklist data holding institution initiates a blacklist data deletion request, and deletes the target blacklist data and deducts the points in the associated point address after the signature verification is passed. include:
  • the blacklist data holding institution initiates a blacklist data deletion request through its own business node, and judges whether there are sufficient points in its associated point address through the business alliance chain; when the judgment result is yes, use the private key that matches the random public key Sign the target blacklist data, and send the signature information along with the blacklist data deletion request to the business alliance chain. After the business alliance chain has passed the verification, delete the target blacklist data and deduct the points in the associated point address. Otherwise, end the current The deletion operation of the blacklist data; when the judgment result is no, the current deletion operation of the blacklist data is directly ended.
  • a blacklist data holder when a blacklist data holder needs to delete a certain blacklist data, it first initiates a blacklist data deletion request through its own business node, and then determines whether there are sufficient points in the point address associated with the blacklist data. When the associated point address has sufficient points, use the private key matching the encrypted random public key to sign the target blacklist data, and send the signature information along with the blacklist data deletion request to the business alliance chain, which is verified by the business alliance chain After passing, delete the target blacklist data and deduct the points in the associated point address, otherwise, end the deletion of the current blacklist data; when the associated point address is insufficient in points, you can choose to use other point addresses with sufficient points of the holding institution The corresponding points are deducted, and then the blacklist data deletion operation is performed. If the points of all the points of the holding institution are insufficient, the current blacklist data deletion operation is directly ended.
  • this embodiment provides a block chain-based blacklist data sharing system, including:
  • Blockchain construction unit 1 is used for member institutions to build their own network nodes, and sequentially connect the network nodes of each member institution to build a blockchain.
  • the network nodes include business nodes and points nodes;
  • the blacklist data uploading unit 2 is used to initiate a blacklist data upload request via any business node, use the generated symmetric secret key to encrypt the blacklist data while using a random public key to encrypt the symmetric secret key, and by encrypting the encrypted blacklist data Pack it with the encrypted symmetric key and put it on the chain, and when the account is settled on the chain, the associated point node requests to transfer points to the designated point address;
  • the blacklist data query unit 3 is used to initiate a blacklist data query request via any business node.
  • the associated point node will send the points of the target blacklist data holder institution Pay points by address, and use the private key matching the random public key to decrypt the packaged target blacklist data after the holding institution monitors that the points are credited, and at the same time call the public key of the query institution to reversely encrypt the decrypted target blacklist data Return to the inquiry agency to decrypt the inquiry;
  • the blacklist data deletion unit 4 is used to initiate a blacklist data deletion request via the business node of the blacklist data holding institution, and delete the target blacklist data and deduct the points in the associated point address after the signature verification is passed.
  • the blacklist data uploading unit 2 includes:
  • the upload request module 21 is used for member institutions to initiate a blacklist data upload request to the business alliance chain through their business nodes, and at the same time specify the point address of the income points;
  • the duplicate checking module 22 is used to calculate the key value of the blacklist data to be uploaded, and judge whether the blacklist data to be uploaded has been stored in the business alliance chain by the key value;
  • the first execution module 23 is used to encrypt the blacklist data with a randomly generated symmetric key and use a random public key to encrypt the symmetric key and perform the packaging and chaining operation when the judgment result is no, and when the judgment result is yes When the current blacklist data upload operation ends;
  • the point transaction module 24 is used to request the point alliance chain to transfer points to the designated point address by the associated point node when the on-chain operation of the blacklist data is triggered.
  • the blacklist data query unit 3 includes:
  • the query request module 31 is used for member institutions to initiate a blacklist data query request to the business alliance chain through their business nodes, and determine whether it is uploaded by the querying institution according to the point address associated with the blacklist data to be queried;
  • the second execution module 32 is configured to, when the judgment result is yes, call the private key associated with the point address to decrypt the encrypted symmetric key to extract the plain text symmetric key, and then use the plain text symmetric key to decrypt the detailed data in the folder ;
  • the judgment result is no, request the points alliance chain to pay points to the point address of the target blacklist data holder through the associated point node, and use the private key that matches the associated point address after the holding institution monitors the crediting of the points
  • Decrypt the encrypted symmetric secret key extract the plaintext symmetric secret key, call the public key of the query agency to reverse encrypt the plaintext symmetric secret key, and then package the reverse encrypted symmetric secret key and undecrypted detailed data back to the query agency Get decrypted.
  • the blacklist data query unit 3 includes:
  • the query request module 31 is used by the member institution to initiate a blacklist data query request to the business alliance chain through its business node, and determine whether it is uploaded by the query institution according to the point address associated with the blacklist data to be queried;
  • the second execution module 32 is configured to, when the judgment result is yes, call the private key associated with the point address to decrypt the encrypted symmetric key to extract the plain text symmetric key, and then use the plain text symmetric key to decrypt the detailed data in the folder ;
  • the judgment result is no, request the points alliance chain to pay points to the point address of the target blacklist data holder through the associated point node, and use the private key that matches the associated point address after the holding institution monitors the crediting of the points
  • Decrypt the encrypted symmetric secret key extract the plaintext symmetric secret key, call the public key of the query agency to reverse encrypt the plaintext symmetric secret key, and then package the reverse encrypted symmetric secret key and undecrypted detailed data back to the query agency Get decrypted.
  • the blacklist data deletion unit 4 includes:
  • the deletion request module 41 is used for the blacklist data holding institution to initiate a blacklist data deletion request via its own business node, and determine whether there are sufficient points in its associated point address through the business alliance chain;
  • the third execution module 42 is configured to use the private key matching the random public key to sign the target blacklist data when the judgment result is yes, and send the signature information along with the blacklist data deletion request to the business alliance chain , After the verification of the business alliance chain is passed, delete the target blacklist data and deduct the points in the associated point address. Otherwise, end the deletion of the current blacklist data; if the judgment result is no, directly end the deletion of the current blacklist data operating.
  • the beneficial effects of the block chain-based blacklist data sharing system provided by the embodiment of the present invention are the same as the beneficial effects of the block chain-based blacklist data sharing method provided in the first embodiment. Do not repeat it.
  • the above-mentioned inventive method can be implemented by a program instructing relevant hardware.
  • the above-mentioned program can be stored in a computer-readable storage medium.
  • the storage medium may be: ROM/RAM, magnetic disk, optical disk, memory card, etc.

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Abstract

一种基于区块链的黑名单数据共享方法及系统，涉及区块链技术领域，通过将区块链技术引入黑名单数据的应用场景中能够保证黑名单数据获取的便捷性和有效性，提高黑名单数据的共享价值。该方法包括：成员机构搭建各自的网络节点，依序将各成员机构所属的网络节点联网构建区块链，网络节点包括业务节点和积分节点；经由任一业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分；该系统包括上述方案所提的方法。

Description

基于区块链的黑名单数据共享方法及系统 技术领域
本发明涉及区块链技术领域，尤其涉及一种基于区块链的黑名单数据共享方法及系统。
背景技术
黑名单是记录存在严重负面信用行为人或法人名单，一旦被列入黑名单中即说明该行为人的信用出现了问题，与黑名单中出现的行为人或法人合作将会增加其合作风险，现有的黑名单数据来源途径有多种，如金融机构、信用卡发放机构、法院和电信企业等，由于黑名单数据的来源包括了政府职能机构和大中型企业，由于其来源分散的特性，在操作的过程中很难将上述各单位的黑名单数据进行有效的整合共享，故衍生出了不少专门靠采集各单位的黑名单数据然后再出售营利的民间机构，使得企业通过付费购买的方式来获取所需的黑名单数据，即便这样，由于黑名单数据具有公开分散及公开不透明的特点，导致不同的民间机构获取的黑名单数据存在数量和质量上的差异，因此即使企业高价购买了黑名单数据，同样无法保证黑名单数据的完整性和有效性。
发明内容
本发明的目的在于提供一种基于区块链的黑名单数据共享方法及系统，通过将区块链技术引入黑名单数据的应用场景中能够保证黑名单数据获取的便捷性和有效性，提高黑名单数据的共享价值。
为了实现上述目的，本发明的一方面提供一种基于区块链的黑名单数据共享方法，包括：
成员机构搭建各自的网络节点，依序将各成员机构所属的网络节点联网构建区块链，所述网络节点包括业务节点和积分节点；
经由任一业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对所述对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分；或者，
经由任一业务节点发起黑名单数据查询请求，当目标黑名单数据并非由查询机构上传时，则通过关联的积分节点向目标黑名单数据的持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与所述随机公钥匹配的私钥将打包的目标黑名单数据解密，同时调用查询机构的公钥对解密后的目标黑名单数据反向加密返回至查询机构解密查询；或者，
经黑名单数据持有机构自身的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑名单数据并扣除关联积分地址中的积分。
具体地，所述区块链包括业务联盟链和积分联盟链，业务联盟链由多个业务节点联网组成，积分联盟链由多个积分节点联网组成。
优选地，所述经由任一业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对所述对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分的方法包括：
成员机构通过所属业务节点向业务联盟链发起黑名单数据上传请求，同时指定收入积分的积分地址；
计算待上传黑名单数据的key值，通过所述key值判断业务联盟链中是否已经存储了待上传黑名单数据；
在判断结果为否时，利用随机生成的对称秘钥对所述黑名单数据加密以及使用随机公钥对所述对称秘钥进行加密并执行打包上链操作，在判断结果为是时，结束当前的黑名单数据的上传操作；
当监听到黑名单数据的上链操作落账触发时，由关联的积分节点请求积分联盟链向指定的所述积分地址转入积分。
较佳地，所述利用随机生成的对称秘钥对所述黑名单数据加密以及使用 所述随机公钥对所述对称秘钥进行加密并执行打包上链操作的方法包括：
将所述黑名单数据、所述积分地址和所述随机公钥关联标记，其中，所述黑名单数据包括名称、ID和详情数据；
使用随机生成的对称秘钥将详情数据加密，并将名称、ID和加密的详情数据存储于同一文件夹中；
利用所述随机公钥对所述对称秘钥进行二次加密，然后将二次加密的对称秘钥和所述文件夹打包上传业务联盟链。
优选地，所述经由任一业务节点发起黑名单数据查询请求，当目标黑名单数据并非由查询机构上传时，则通过关联的积分节点向目标黑名单数据的持有机构的积分地址转入积分，并在持有机构监听到积分入账后使用与所述随机公钥匹配的私钥将打包的目标黑名单数据解密，同时调用查询机构的公钥对解密后的目标黑名单数据反向加密返回至查询机构解密查询的方法包括：
成员机构通过所属业务节点向业务联盟链发起黑名单数据查询请求，并根据待查询黑名单数据关联的积分地址判断是否为查询机构上传；
当判断结果为是时，调用与所述积分地址关联的私钥将加密的对称秘钥解密提取明文对称秘钥，之后再利用明文对称秘钥解密所述文件夹中的详情数据；
当判断结果为否时，通过关联的积分节点请求积分联盟链向目标黑名单数据持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与关联积分地址匹配的私钥解密被加密的对称秘钥，提取出明文对称秘钥后调用查询机构的公钥将明文对称秘钥反向加密，之后将反向加密的对称秘钥和未解密的详情数据打包返回至查询机构解密获取。
较佳地，所述积分节点中包括多个积分地址，查询机构可选择积分充足的任一积分地址向目标黑名单数据持有机构的积分地址支付积分。
可选地，在黑名单数据查询的过程中还包括：
经由任一业务节点发起黑名单数据的基本信息查询请求，将目标黑名单数据的名称和ID作为键值输入业务联盟链，通过调用智能合约返回目标黑名 单数据的基本信息。
优选地，所述经黑名单数据持有机构自身的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑名单数据并扣除关联积分地址中的积分的方法包括：
黑名单数据持有机构经自身的业务节点发起黑名单数据删除请求，通过业务联盟链判断其关联的积分地址中是否存在充足积分；
在判断结果为是时，使用与所述随机公钥匹配的私钥对目标黑名单数据进行签名，并将签名信息随黑名单数据的删除请求一同发送业务联盟链，经业务联盟链验证通过后删除目标黑名单数据并扣除关联积分地址中的积分，否则，结束当前的黑名单数据的删除操作；
在判断结果为否时，直接结束当前的黑名单数据的删除操作。
与现有技术相比，本发明提供的基于区块链的黑名单数据共享方法具有以下有益效果：
本发明提供的基于区块链的黑名单数据共享方法中，通过将各成员机构对应的网络节点顺序接入网络构建区块链，且每个网络节点中包括相互关联的业务节点和积分节点，其中，业务节点用于发起业务请求并存储黑名单数据，积分节点用于在业务请求落账触发时，执行相应的积分交易并记录积分信息；示例性地，任一成员机构可通过对应的业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分；或者，任一成员机构可通过对应的业务节点发起黑名单数据查询请求，当目标黑名单数据并非由查询机构上传时，则通过关联的积分节点向目标黑名单数据的持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与随机公钥匹配的私钥将打包的目标黑名单数据解密，同时调用查询机构的公钥对解密后的目标黑名单数据反向加密返回至查询机构解密查询；或者，任一成员机构可通过对应的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑 名单数据并扣除关联积分地址中的积分。
可见，当任一成员机构通过各自的业务节点将业务请求广播至业务联盟链时，能够根据共识结果在业务联盟链中执行相应的业务请求操作，若执行的业务请求为黑名单数据上传请求、黑名单数据查询请求、黑名单数据删除请求中的任一种时，通过积分联盟链向执行本次操作的相关方给予一定的积分奖励或者扣除，营造出一种利用共享黑名单数据换积分的“有偿”模式，进而促使各成员机构基于上述积分激励政策，及时主动的在业务联盟链中共享黑名单数据，提高黑名单数据共享规模和共享价值；另外，由于区块链去中心化的特性，故采用本发明提供的基于区块链的黑名单数据共享方法无需中心化的运营机构、具有运营成本低廉的特点，通过对关键数据的加密存储，还能够有效保护客户的隐私，具有安全可靠的特点。
本发明的另一方面提供一种基于区块链的黑名单数据共享系统，应用于上述技术方案所述的基于区块链的黑名单数据共享方法中，所述系统包括：
区块链构建单元，用于成员机构搭建各自的网络节点，依序将各成员机构所属的网络节点联网构建区块链，所述网络节点包括业务节点和积分节点；
黑名单数据上传单元，用于经由任一业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对所述对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分；
黑名单数据查询单元，用于经由任一业务节点发起黑名单数据查询请求，当目标黑名单数据并非由查询机构上传时，则通过关联的积分节点向目标黑名单数据的持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与所述随机公钥匹配的私钥将打包的目标黑名单数据解密，同时调用查询机构的公钥对解密后的目标黑名单数据反向加密返回至查询机构解密查询；
黑名单数据删除单元，用于经黑名单数据持有机构自身的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑名单数据并扣除关联积分地址中的积分。
优选地，所述黑名单数据上传单元包括：
上传请求模块，用于成员机构通过所属业务节点向业务联盟链发起黑名单数据上传请求，同时指定收入积分的积分地址；
查重模块，用于计算待上传黑名单数据的key值，通过所述key值判断业务联盟链中是否已经存储了待上传黑名单数据；
第一执行模块，用于在判断结果为否时，利用随机生成的对称秘钥对所述黑名单数据加密以及使用随机公钥对所述对称秘钥进行加密并执行打包上链操作，在判断结果为是时，结束当前的黑名单数据的上传操作；
积分交易模块，用于当监听到黑名单数据的上链操作落账触发时，由关联的积分节点请求积分联盟链向指定的所述积分地址转入积分。
优选地，所述黑名单数据查询单元包括：
查询请求模块，用于成员机构通过所属业务节点向业务联盟链发起黑名单数据查询请求，并根据待查询黑名单数据关联的积分地址判断是否为查询机构上传；
第二执行模块，用于当判断结果为是时，调用与所述积分地址关联的私钥将加密的对称秘钥解密提取明文对称秘钥，之后再利用明文对称秘钥解密所述文件夹中的详情数据；当判断结果为否时，通过关联的积分节点请求积分联盟链向目标黑名单数据持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与关联积分地址匹配的私钥解密被加密的对称秘钥，提取出明文对称秘钥后调用查询机构的公钥将明文对称秘钥反向加密，之后将反向加密的对称秘钥和未解密的详情数据打包返回至查询机构解密获取。
优选地，所述黑名单数据删除单元包括：
删除请求模块，用于黑名单数据持有机构经自身的业务节点发起黑名单数据删除请求，通过业务联盟链判断其关联的积分地址中是否存在充足积分；
第三执行模块，用于在判断结果为是时，使用与所述随机公钥匹配的私钥对目标黑名单数据进行签名，并将签名信息随黑名单数据的删除请求一同发送业务联盟链，经业务联盟链验证通过后删除目标黑名单数据并扣除关联 积分地址中的积分，否则，结束当前的黑名单数据的删除操作；在判断结果为否时，直接结束当前的黑名单数据的删除操作。
与现有技术相比，本发明提供的基于区块链的黑名单数据共享系统的有益效果与上述技术方案提供的基于区块链的黑名单数据共享方法的有益效果相同，在此不做赘述。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为本发明实施例一中基于区块链的黑名单数据共享方法的流程示意图；
图2为业务联盟链和积分联盟链的架构示意图；
图3为图1中经由任一业务节点上传黑名单数据获取积分的流程示意图；
图4为图1中经由任一业务节点查询黑名单数据支付积分的流程示意图；
图5为图1中经由任一业务节点删除黑名单数据扣除积分的流程示意图；
图6为本发明实施例二中基于区块链的黑名单数据共享系统的结构框图。
附图标记：
1-区块链构建单元，                2-黑名单数据上传单元；
3-黑名单数据查询单元，            4-黑名单数据删除单元；
21-上传请求模块，                 22-查重模块；
23-第一执行模块，                 24-积分交易模块；
31-查询请求模块，                 32-第二执行模块；
41-删除请求模块，                 42-第三执行模块。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面将结合本 发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其它实施例，均属于本发明保护的范围。
实施例一
请参阅图1，本实施例提供一种基于区块链的黑名单数据共享方法，包括：
成员机构搭建各自的网络节点，依序将各成员机构所属的网络节点联网构建区块链，网络节点包括业务节点和积分节点；经由任一业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分；或者，经由任一业务节点发起黑名单数据查询请求，当目标黑名单数据并非由查询机构上传时，则通过关联的积分节点向目标黑名单数据的持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与随机公钥匹配的私钥将打包的目标黑名单数据解密，同时调用查询机构的公钥对解密后的目标黑名单数据反向加密返回至查询机构解密查询；或者，经由黑名单数据持有机构自身的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑名单数据并扣除关联积分地址中的积分。
具体实施时，本发明提供的基于区块链的黑名单数据共享方法中，通过将各成员机构对应的网络节点顺序接入网络构建区块链，且每个网络节点中包括相互关联的业务节点和积分节点，其中，业务节点用于发起业务请求并存储黑名单数据，积分节点用于在业务请求落账触发时，执行相应的积分交易并记录积分信息；示例性地，任一成员机构可通过对应的业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分；或者，任一成员机构可通过对应的业务节点发起黑名单数据查询请求，当目标黑名 单数据并非由查询机构上传时，则通过关联的积分节点向目标黑名单数据的持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与随机公钥匹配的私钥将打包的目标黑名单数据解密，同时调用查询机构的公钥对解密后的目标黑名单数据反向加密返回至查询机构解密查询；或者，任一成员机构可通过对应的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑名单数据并扣除关联积分地址中的积分。
可见，当任一成员机构通过各自的业务节点将业务请求广播至业务联盟链时，能够根据共识结果在业务联盟链中执行相应的业务请求操作，若执行的业务请求为黑名单数据上传请求、黑名单数据查询请求、黑名单数据删除请求中的任一种时，通过积分联盟链向执行本次操作的相关方给予一定的积分奖励或者扣除，营造出一种利用共享黑名单数据换积分的“有偿”模式，进而促使各成员机构基于上述积分激励政策，及时主动的在业务联盟链中共享黑名单数据，提高黑名单数据共享规模和共享价值；另外，由于区块链去中心化的特性，故采用本发明提供的基于区块链的黑名单数据共享方法无需中心化的运营机构、具有运营成本低廉的特点，通过对关键数据的加密存储，还能够有效保护客户的隐私，具有安全可靠的特点。
本领域技术人员应当理解的是，上述实施例中的黑名单业务请求不限于黑名单数据上传请求、黑名单数据查询请求和黑名单数据删除请求这三种方式，还可包括其它可以实现的业务请求，比如黑名单数据下载请求、黑名单数据更改请求等。
可以理解的是，请参阅图2，上述实施例中的区块链包括业务联盟链、积分联盟链以及API服务器，业务联盟链由多个业务节点联网组成，积分联盟链由多个积分节点联网组成，API服务器封装了业务联盟链和积分联盟链的sdk包以及对外服务框架，API服务器的作用是连接业务联盟链和积分联盟链以及提供对外服务接口；其中，业务联盟链包括业务联盟链本体和事件监听服务器，业务联盟链本体用于智能合约的运行并提供黑名单数据存储共享服务，事件监听服务器用于监听业务联盟链本体发出的事件，同时向积分联盟 链发起积分转账请求。
具体地，请参阅图3，上述实施例中经由任一业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分的方法包括：
成员机构通过所属业务节点向业务联盟链发起黑名单数据上传请求，同时指定收入积分的积分地址；计算待上传黑名单数据的key值，通过key值判断业务联盟链中是否已经存储了待上传黑名单数据；在判断结果为否时，利用随机生成的对称秘钥对黑名单数据加密以及使用随机公钥对对称秘钥进行加密并执行打包上链操作，在判断结果为是时，结束当前的黑名单数据的上传操作；当监听到黑名单数据的上链操作落账触发时，由关联的积分节点请求积分联盟链向指定的积分地址转入积分。
进一步地，上述利用随机生成的对称秘钥对黑名单数据加密以及使用随机公钥对对称秘钥进行加密并执行打包上链操作的方法包括：
将黑名单数据、积分地址和随机公钥关联标记，其中，黑名单数据包括名称、ID和详情数据；使用随机生成的对称秘钥将详情数据加密，并将名称、ID和加密的详情数据存储于同一文件夹中；利用随机公钥对对称秘钥进行二次加密，然后将二次加密的对称秘钥和文件夹打包上传业务联盟链。
具体实施时，当某一成员机构需要将掌握的黑名单数据上传至业务联盟链时，首先会将黑名单数据的名称和ID脱敏，并指定一个积分地址和随机公钥与待上传黑名单数据关联标记，然后基于待上传黑名单数据的名称、ID和详情数据计算待上传黑名单数据的key值，通过与业务联盟链中已存储黑名单数据的key值做比对来判断待上传黑名单数据在业务联盟链中是否已经存在，在判断结果为否时，利用随机生成的对称秘钥对详情数据加密，并将名称、ID和加密的详情数据存储于同一文件夹中，之后再利用上述关联的随机公钥将对称秘钥进行二次加密，最后将二次加密的对称秘钥和文件夹打包上传业务联盟链，在判断结果为是时，结束当前的黑名单数据的上传操作，直 至事件监听服务器监听到黑名单数据的上链操作落账触发时，向积分联盟链发送请求获取积分。
根据上述具体实施过程可知，由于打包上链的黑名单数据存储字段包括对称秘钥和用对称秘钥加密的文件夹，为了确保对称秘钥的安全性，需使用与上传机构地址关联的随机公钥单独将对称秘钥二次加密，采用这种二次加密的方式将加密的对称秘钥连同加密的文件夹一起存储在业务联盟链中，可以不需要本成员机构对每条黑名单数据使用的对称秘钥进行维护，在保证安全性的同时降低了系统的使用复杂性，另外，通过将加密的对称秘钥存储在业务联盟链上，可以充分利用每个业务节点的记账特性，防止对称秘钥的丢失。
对于黑名单数据的查询本实施例提供了两种查询模式，即收费查询模式和免费查询模式，本实施对其具体实现步骤做以下描述：
对于基本信息查询模式，经由任一业务节点发起黑名单数据的基本信息查询请求，将目标黑名单数据的名称和ID作为键值输入业务联盟链，通过调用智能合约返回目标黑名单数据的基本信息。
对于详情信息查询模式，请参阅图4，成员机构通过所属业务节点向业务联盟链发起黑名单数据查询请求，并根据待查询黑名单数据关联的积分地址判断是否为查询机构上传；当判断结果为是时，调用与积分地址关联的私钥将加密的对称秘钥解密提取明文对称秘钥，之后再利用明文对称秘钥解密文件夹中的详情数据；当判断结果为否时，通过关联的积分节点请求积分联盟链向目标黑名单数据持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与关联积分地址匹配的私钥解密被加密的对称秘钥，提取出明文对称秘钥后调用查询机构的公钥将明文对称秘钥反向加密，之后将反向加密的对称秘钥和未解密的详情数据打包返回至查询机构解密获取。
其中，积分节点中包括多个积分地址，查询机构可选择积分充足的任一积分地址向目标黑名单数据持有机构的积分地址支付积分。
通过上述两种黑名单数据查询模式的设置，查询机构可基于对黑名单数 据的查询需求自由选择，使得基于区块链的黑名单数据共享方法的应用更具灵活性。
请参阅图5，上述实施例中所述经黑名单数据持有机构自身的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑名单数据并扣除关联积分地址中的积分的方法包括：
黑名单数据持有机构经自身的业务节点发起黑名单数据删除请求，通过业务联盟链判断其关联的积分地址中是否存在充足积分；在判断结果为是时，使用与随机公钥匹配的私钥对目标黑名单数据进行签名，并将签名信息随黑名单数据的删除请求一同发送业务联盟链，经业务联盟链验证通过后删除目标黑名单数据并扣除关联积分地址中的积分，否则，结束当前的黑名单数据的删除操作；在判断结果为否时，直接结束当前的黑名单数据的删除操作。
具体实施时，在黑名单数据持有机构需要删除某一黑名单数据时，首先经自身的业务节点发起黑名单数据删除请求，然后判断与黑名单数据关联的积分地址中是否存在充足积分，当关联的积分地址存在充足积分中时，使用与加密随机公钥匹配的私钥对目标黑名单数据进行签名，并将签名信息随黑名单数据的删除请求一同发送业务联盟链，经业务联盟链验证通过后删除目标黑名单数据并扣除关联积分地址中的积分，否则，结束当前的黑名单数据的删除操作；当关联的积分地址积分不足时，可选用持有机构的其他具有充足积分的积分地址扣除相应积分，然后执行黑名单数据的删除操作，若持有机构的所有积分地址的积分均不足，则直接结束当前黑名单数据的删除操作。
通过上述具体实施过程可知，在持有机构删除黑名单数据时需首先验证其身份，即验证其是否为该条黑名单数据的上传机构，只有在验证通过后才能够对该条黑名单数据进行删除，进而保证业务联盟链中黑名单数据的安全性。
实施例二
请参阅图1和图6，本实施例提供一种基于区块链的黑名单数据共享系统， 包括：
区块链构建单元1，用于成员机构搭建各自的网络节点，依序将各成员机构所属的网络节点联网构建区块链，网络节点包括业务节点和积分节点；
黑名单数据上传单元2，用于经由任一业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分；
黑名单数据查询单元3，用于经由任一业务节点发起黑名单数据查询请求，当目标黑名单数据并非由查询机构上传时，则通过关联的积分节点向目标黑名单数据的持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与随机公钥匹配的私钥将打包的目标黑名单数据解密，同时调用查询机构的公钥对解密后的目标黑名单数据反向加密返回至查询机构解密查询；
黑名单数据删除单元4，用于经黑名单数据持有机构自身的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑名单数据并扣除关联积分地址中的积分。
优选地，黑名单数据上传单元2包括：
上传请求模块21，用于成员机构通过所属业务节点向业务联盟链发起黑名单数据上传请求，同时指定收入积分的积分地址；
查重模块22，用于计算待上传黑名单数据的key值，通过key值判断业务联盟链中是否已经存储了待上传黑名单数据；
第一执行模块23，用于在判断结果为否时，利用随机生成的对称秘钥对黑名单数据加密以及使用随机公钥对对称秘钥进行加密并执行打包上链操作，在判断结果为是时，结束当前的黑名单数据的上传操作；
积分交易模块24，用于当监听到黑名单数据的上链操作落账触发时，由关联的积分节点请求积分联盟链向指定的积分地址转入积分。
优选地，黑名单数据查询单元3包括：
查询请求模块31，用于成员机构通过所属业务节点向业务联盟链发起黑 名单数据查询请求，并根据待查询黑名单数据关联的积分地址判断是否为查询机构上传；
第二执行模块32，用于当判断结果为是时，调用与积分地址关联的私钥将加密的对称秘钥解密提取明文对称秘钥，之后再利用明文对称秘钥解密文件夹中的详情数据；当判断结果为否时，通过关联的积分节点请求积分联盟链向目标黑名单数据持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与关联积分地址匹配的私钥解密被加密的对称秘钥，提取出明文对称秘钥后调用查询机构的公钥将明文对称秘钥反向加密，之后将反向加密的对称秘钥和未解密的详情数据打包返回至查询机构解密获取。
优选地，黑名单数据查询单元3包括：
查询请求模块31，用于成员机构通过所属业务节点向业务联盟链发起黑名单数据查询请求，并根据待查询黑名单数据关联的积分地址判断是否为查询机构上传；
第二执行模块32，用于当判断结果为是时，调用与积分地址关联的私钥将加密的对称秘钥解密提取明文对称秘钥，之后再利用明文对称秘钥解密文件夹中的详情数据；当判断结果为否时，通过关联的积分节点请求积分联盟链向目标黑名单数据持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与关联积分地址匹配的私钥解密被加密的对称秘钥，提取出明文对称秘钥后调用查询机构的公钥将明文对称秘钥反向加密，之后将反向加密的对称秘钥和未解密的详情数据打包返回至查询机构解密获取。
优选地，黑名单数据删除单元4包括：
删除请求模块41，用于黑名单数据持有机构经自身的业务节点发起黑名单数据删除请求，通过业务联盟链判断其关联的积分地址中是否存在充足积分；
第三执行模块42，用于在判断结果为是时，使用与所述随机公钥匹配的私钥对目标黑名单数据进行签名，并将签名信息随黑名单数据的删除请求一同发送业务联盟链，经业务联盟链验证通过后删除目标黑名单数据并扣除关 联积分地址中的积分，否则，结束当前的黑名单数据的删除操作；在判断结果为否时，直接结束当前的黑名单数据的删除操作。
与现有技术相比，本发明实施例提供的基于区块链的黑名单数据共享系统的有益效果与上述实施例一提供的基于区块链的黑名单数据共享方法的有益效果相同，在此不做赘述。
本领域普通技术人员可以理解，实现上述发明方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，上述程序可以存储于计算机可读取存储介质中，该程序在执行时，包括上述实施例方法的各步骤，而的存储介质可以是：ROM/RAM、磁碟、光盘、存储卡等。
以上，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (12)

  1. 一种基于区块链的黑名单数据共享方法，其特征在于，包括：
    成员机构搭建各自的网络节点，依序将各成员机构所属的网络节点联网构建区块链，所述网络节点包括业务节点和积分节点；
    经由任一业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对所述对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分；或者，
    经由任一业务节点发起黑名单数据查询请求，当目标黑名单数据并非由查询机构上传时，则通过关联的积分节点向目标黑名单数据的持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与所述随机公钥匹配的私钥将打包的目标黑名单数据解密，同时调用查询机构的公钥对解密后的目标黑名单数据反向加密返回至查询机构解密查询；或者，
    经由黑名单数据持有机构自身的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑名单数据并扣除关联积分地址中的积分。
  2. 根据权利要求1所述的方法，其特征在于，所述区块链包括业务联盟链和积分联盟链，业务联盟链由多个业务节点联网组成，积分联盟链由多个积分节点联网组成。
  3. 根据权利要求2所述的方法，其特征在于，所述经由任一业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对所述对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分的方法包括：
    成员机构通过所属业务节点向业务联盟链发起黑名单数据上传请求，同时指定收入积分的积分地址；
    计算待上传黑名单数据的key值，通过所述key值判断业务联盟链中是否 已经存储了待上传黑名单数据；
    在判断结果为否时，利用随机生成的对称秘钥对所述黑名单数据加密以及使用随机公钥对所述对称秘钥进行加密并执行打包上链操作，在判断结果为是时，结束当前的黑名单数据的上传操作；
    当监听到黑名单数据的上链操作落账触发时，由关联的积分节点请求积分联盟链向指定的所述积分地址转入积分。
  4. 根据权利要求3所述的方法，其特征在于，所述利用随机生成的对称秘钥对所述黑名单数据加密以及使用所述随机公钥对所述对称秘钥进行加密并执行打包上链操作的方法包括：
    将所述黑名单数据、所述积分地址和所述随机公钥关联标记，其中，所述黑名单数据包括名称、ID和详情数据；
    使用随机生成的对称秘钥将详情数据加密，并将名称、ID和加密的详情数据存储于同一文件夹中；
    利用所述随机公钥对所述对称秘钥进行二次加密，然后将二次加密的对称秘钥和所述文件夹打包上传业务联盟链。
  5. 根据权利要求4所述的方法，其特征在于，所述经由任一业务节点发起黑名单数据查询请求，当目标黑名单数据并非由查询机构上传时，则通过关联的积分节点向目标黑名单数据的持有机构的积分地址转入积分，并在持有机构监听到积分入账后使用与所述随机公钥匹配的私钥将打包的目标黑名单数据解密，同时调用查询机构的公钥对解密后的目标黑名单数据反向加密返回至查询机构解密查询的方法包括：
    成员机构通过所属业务节点向业务联盟链发起黑名单数据查询请求，并根据待查询黑名单数据关联的积分地址判断是否为查询机构上传；
    当判断结果为是时，调用与所述积分地址关联的私钥将加密的对称秘钥解密提取明文对称秘钥，之后再利用明文对称秘钥解密所述文件夹中的详情 数据；
    当判断结果为否时，通过关联的积分节点请求积分联盟链向目标黑名单数据持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与关联积分地址匹配的私钥解密被加密的对称秘钥，提取出明文对称秘钥后调用查询机构的公钥将明文对称秘钥反向加密，之后将反向加密的对称秘钥和未解密的详情数据打包返回至查询机构解密获取。
  6. 根据权利要求5所述的方法，其特征在于，所述积分节点中包括多个积分地址，查询机构可选择积分充足的任一积分地址向目标黑名单数据持有机构的积分地址支付积分。
  7. 根据权利要求1所述的方法，其特征在于，在黑名单数据查询的过程中还包括：
    经由任一业务节点发起黑名单数据的基本信息查询请求，将目标黑名单数据的名称和ID作为键值输入业务联盟链，通过调用智能合约返回目标黑名单数据的基本信息。
  8. 根据权利要求4所述的方法，其特征在于，所述经黑名单数据持有机构自身的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑名单数据并扣除关联积分地址中的积分的方法包括：
    黑名单数据持有机构经自身的业务节点发起黑名单数据删除请求，通过业务联盟链判断其关联的积分地址中是否存在充足积分；
    在判断结果为是时，使用与所述随机公钥匹配的私钥对目标黑名单数据进行签名，并将签名信息随黑名单数据的删除请求一同发送业务联盟链，经业务联盟链验证通过后删除目标黑名单数据并扣除关联积分地址中的积分，否则，结束当前的黑名单数据的删除操作；
    在判断结果为否时，直接结束当前黑名单数据的删除操作。
  9. 一种基于区块链的黑名单数据共享系统，其特征在于，包括：
    区块链构建单元，用于成员机构搭建各自的网络节点，依序将各成员机构所属的网络节点联网构建区块链，所述网络节点包括业务节点和积分节点；
    黑名单数据上传单元，用于经由任一业务节点发起黑名单数据上传请求，利用生成的对称秘钥加密黑名单数据的同时使用随机公钥对所述对称秘钥加密，通过将加密的黑名单数据和加密的对称秘钥打包上链，并在上链落账时由关联的积分节点请求向指定的积分地址转入积分；
    黑名单数据查询单元，用于经由任一业务节点发起黑名单数据查询请求，当目标黑名单数据并非由查询机构上传时，则通过关联的积分节点向目标黑名单数据的持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与所述随机公钥匹配的私钥将打包的目标黑名单数据解密，同时调用查询机构的公钥对解密后的目标黑名单数据反向加密返回至查询机构解密查询；
    黑名单数据删除单元，用于经黑名单数据持有机构自身的业务节点发起黑名单数据删除请求，并在签名验证通过后删除目标黑名单数据并扣除关联积分地址中的积分。
  10. 根据权利要求9所述的系统，其特征在于，所述黑名单数据上传单元包括：
    上传请求模块，用于成员机构通过所属业务节点向业务联盟链发起黑名单数据上传请求，同时指定收入积分的积分地址；
    查重模块，用于计算待上传黑名单数据的key值，通过所述key值判断业务联盟链中是否已经存储了待上传黑名单数据；
    第一执行模块，用于在判断结果为否时，利用随机生成的对称秘钥对所述黑名单数据加密以及使用随机公钥对所述对称秘钥进行加密并执行打包上链操作，在判断结果为是时，结束当前的黑名单数据的上传操作；
    积分交易模块，用于当监听到黑名单数据的上链操作落账触发时，由关 联的积分节点请求积分联盟链向指定的所述积分地址转入积分。
  11. 根据权利要求9所述的系统，其特征在于，所述黑名单数据查询单元包括：
    查询请求模块，用于成员机构通过所属业务节点向业务联盟链发起黑名单数据查询请求，并根据待查询黑名单数据关联的积分地址判断是否为查询机构上传；
    第二执行模块，用于当判断结果为是时，调用与所述积分地址关联的私钥将加密的对称秘钥解密提取明文对称秘钥，之后再利用明文对称秘钥解密所述文件夹中的详情数据；当判断结果为否时，通过关联的积分节点请求积分联盟链向目标黑名单数据持有机构的积分地址支付积分，并在持有机构监听到积分入账后使用与关联积分地址匹配的私钥解密被加密的对称秘钥，提取出明文对称秘钥后调用查询机构的公钥将明文对称秘钥反向加密，之后将反向加密的对称秘钥和未解密的详情数据打包返回至查询机构解密获取。
  12. 根据权利要求9所述的系统，其特征在于，所述黑名单数据删除单元包括：
    删除请求模块，用于黑名单数据持有机构经自身的业务节点发起黑名单数据删除请求，通过业务联盟链判断其关联的积分地址中是否存在充足积分；
    第三执行模块，用于在判断结果为是时，使用与所述随机公钥匹配的私钥对目标黑名单数据进行签名，并将签名信息随黑名单数据的删除请求一同发送业务联盟链，经业务联盟链验证通过后删除目标黑名单数据并扣除关联积分地址中的积分，否则，结束当前的黑名单数据的删除操作；在判断结果为否时，直接结束当前的黑名单数据的删除操作。
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