CN109886810B - Crowdsourcing transaction method and system, readable storage medium and terminal - Google Patents
Crowdsourcing transaction method and system, readable storage medium and terminal Download PDFInfo
- Publication number
- CN109886810B CN109886810B CN201910094488.1A CN201910094488A CN109886810B CN 109886810 B CN109886810 B CN 109886810B CN 201910094488 A CN201910094488 A CN 201910094488A CN 109886810 B CN109886810 B CN 109886810B
- Authority
- CN
- China
- Prior art keywords
- packet
- intelligent management
- crowdsourcing
- management equipment
- block chain
- 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.)
- Active
Links
Images
Abstract
The method comprises the steps of receiving registration information of a packet receiving party and a packet sending party through intelligent management equipment in a crowdsourcing transaction platform, authenticating the registration information of the packet sending party and the packet receiving party, and writing the registration information of the packet sending party and the packet receiving party into a block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm when the authentication is passed. By the scheme, malicious nodes can be effectively prevented from tampering data, the problem of data leakage of crowdsourcing transaction is avoided, and the safety of crowdsourcing transaction can be improved.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a crowdsourcing transaction method and system, a readable storage and a terminal.
Background
Crowdsourcing, which means that an organization or an individual uses internet technology to traditionally submit the work done by a formulation organization or the individual to outsource the work to the public of an unspecified distributed network in a public gathering manner to complete the crowdsourcing.
However, the existing crowdsourcing transaction method has the problem of poor safety.
Disclosure of Invention
The invention solves the technical problem of how to improve the security of crowdsourcing transaction.
In order to achieve the above object, the present invention provides a crowdsourcing transaction method, comprising:
a packet sender and a packet receiver in the crowdsourcing transaction send corresponding registration information to a crowdsourcing transaction platform;
the intelligent management equipment in the crowdsourcing transaction platform receives the registration information of the contracting party and the contracting party, authenticates the registration information of the contracting party and the contracting party, and writes the registration information of the contracting party and the contracting party into a block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm when the authentication is passed; the block chain respectively generates digital signatures and hash values of a packet sender and a packet receiver and sends the digital signatures and the hash values to the intelligent management equipment; the intelligent management equipment sends the received digital signature and the hash value to the packet receiving party and the packet sending party;
and the contracting party adopt the digital signature, the hash value and the registration information corresponding to the contracting party and the contracting party to log in the crowdsourcing transaction platform for crowdsourcing transaction.
Optionally, the method for performing crowdsourcing transaction between the contracting party and the issuing party by logging in the crowdsourcing transaction platform through a digital signature, a hash value and registration information corresponding to the contracting party and the issuing party includes:
the packet sender verifies and logs in a crowdsourcing platform and issues task information by adopting the received hash value and registration information corresponding to the packet sender, and the intelligent management equipment writes the task issuing information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain returns a corresponding second packet sender hash value to the intelligent management equipment; the intelligent management equipment returns the received second packet sender hash value to the packet sender;
the packet receiver verifies and logs in a crowdsourcing platform and selects a task by adopting the received corresponding hash value and the registration information; the intelligent management equipment writes the task selection information of the packet receiver into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain returns a corresponding second packet side hash value to the intelligent management equipment; the intelligent management equipment returns the received second packet receiver hash value to the packet receiver;
the contracting party verifies and logs in the crowdsourcing platform and selects a contracting party by using the second contracting party hash value and the registration information; the intelligent equipment writes the packet receiver selection information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm, and informs the packet sender of setting a safety problem; the contracting party sets a safety problem set through a digital signature and sends the safety problem set to the intelligent management equipment; the intelligent management equipment writes a security problem set into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain returns a third packet sending party hash value to the intelligent management equipment; the intelligent management equipment returns a third packet sender hash value to be sent to the packet sender, and informs the packet receiver of answering the security question set proposed by the packet sender;
the contracting party verifies and logs in the crowdsourcing platform through a second contracting party Hash value and registration information and answers a safety question set provided by the contracting party to obtain a corresponding safety question answer set; the intelligent management equipment writes a security question answer set given by the packet connecting party into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain returns a third packet side hash value to the intelligent management equipment; the intelligent management equipment sends the third packet receiver hash value to the packet receiver;
the third receiver verifies and logs in the crowdsourcing platform and submits task completion information by adopting the third receiver hash value and registration information; the intelligent management equipment writes the task completion information submitted by the packet receiver and the safety problem answer set of the packet receiver into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the intelligent management equipment informs the packet sender to evaluate the task;
the contracting party verifies and logs in the crowdsourcing platform through a third contracting party hash value and registration information and submits corresponding task evaluation information; the intelligent management equipment matches a safety question set by a packet sender with a safety question answer set given by a packet receiver stored in a block chain, and acquires task completion information of the packet receiver from the block chain and sends the task completion information to the packet sender after the matching is successful;
the packet sender evaluates the task completion condition, and the intelligent management equipment writes the task evaluation information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the intelligent management equipment informs the contracting party of the awards in the issuing form, and the contracting party sends the award information to the crowdsourcing platform; and the intelligent management equipment writes the reward information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm and informs the packet receiver to receive the reward.
Optionally, the writing, by the intelligent management device, corresponding information into the block chain by using the improved byzantine fault-tolerant algorithm includes:
the intelligent management equipment sends corresponding information to the block chain;
the intelligent management equipment carries out majority voting on corresponding information sent by the intelligent management equipment by using the block nodes in the block chain, when the voting passes, the intelligent management equipment randomly numbers all the block nodes in the block chain, carries out descending order arrangement according to the numbers, selects the block nodes with the half number from the block nodes, sends corresponding information to the selected block nodes, and when the selected block nodes pass the voting on the corresponding information, the intelligent management equipment judges whether the previous process steps meet the requirements of crowdsourcing transaction contracts;
when the block nodes in the block chain do not pass the majority vote on the corresponding information sent by the intelligent management equipment, the intelligent management equipment randomly groups and numbers all the block nodes in the block chain, and uniformly divides all the block nodes into two groups after the block nodes are arranged in an ascending order according to the numbers; the intelligent management equipment respectively sends corresponding information to the block nodes in the two groups for majority voting, when the vote is passed, the intelligent management equipment randomly numbers all the block nodes in the block chain, performs descending order arrangement according to the numbers, selects the block nodes with the majority, sends the corresponding information to the selected block nodes, and when the selected block nodes pass the vote of the corresponding information, the intelligent management equipment judges whether the previous process steps meet the requirements of crowdsourcing transaction contracts;
when the condition that the crowdsourcing contract requirement is met is determined, the block nodes verify the result of the corresponding information after twice confirmation, when the verification is passed, all the block nodes in the block chain select the block nodes for storing the corresponding information, the selected block recording nodes store the corresponding information and obtain corresponding block rewards, and the details for storing the corresponding information are broadcasted to other block nodes to update the block chain.
The embodiment of the invention also provides a crowdsourcing transaction system, which comprises a packet sending party, a packet receiving party and a crowdsourcing transaction platform; the subcontracting party and the contracting party are respectively coupled with the crowdsourcing transaction platform, and the crowdsourcing transaction platform comprises intelligent management equipment and a block chain which are coupled with each other;
the method comprises the following steps that an issuing party and a receiving party in crowdsourcing transaction are suitable for sending registration information corresponding to the issuing party and the receiving party to a crowdsourcing transaction platform;
the intelligent management equipment in the crowdsourcing transaction platform is suitable for receiving the registration information of the contracting party and the contracting party, authenticating the registration information of the contracting party and the contracting party, and writing the registration information of the contracting party and the contracting party into a block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm when the authentication is passed; the block chain is suitable for respectively generating digital signatures and hash values of a packet sender and a packet receiver and sending the digital signatures and the hash values to the intelligent management equipment; the intelligent management device is suitable for sending the received digital signature and the hash value to the package receiving party and the package sending party;
the contracting party and the issuing party are also suitable for logging in the crowdsourcing transaction platform to carry out crowdsourcing transaction by adopting the digital signature, the hash value and the registration information corresponding to the contracting party and the issuing party.
Optionally, the contracting party is adapted to verify and log in the crowdsourcing platform and issue task information by using the received hash value and registration information corresponding to the contracting party; the intelligent management equipment is suitable for writing the task issuing information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain is suitable for returning a corresponding second packet sender hash value to the intelligent management equipment; the intelligent management device is suitable for returning the received second packet sender hash value to the packet sender;
the packet receiver is suitable for verifying and logging in the crowdsourcing platform by adopting the received corresponding hash value and the registration information and selecting a task; the intelligent management equipment is suitable for writing the task selection information of the packet receiver into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain is suitable for returning a corresponding second packet-receiving party hash value to the intelligent management equipment; the intelligent management device is suitable for returning the received second packet receiver hash value to the packet receiver;
the contracting party is suitable for verifying and logging in the crowdsourcing platform and selecting a contracting party by using the second contracting party hash value and the registration information; the intelligent management equipment is suitable for writing the packet receiver selection information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm and informing the packet sender of setting the safety problem; the contracting party is suitable for setting a safety problem set through a digital signature and sending the safety problem set to the intelligent management equipment; the intelligent management equipment is suitable for writing a security problem set into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain is suitable for returning a third packet sending party hash value to the intelligent management equipment; the intelligent management equipment is suitable for returning a third packet sender hash value to be sent to the packet sender, and informing the packet receiver to answer a security question set proposed by the packet sender;
the contracting party is suitable for verifying and logging in the crowdsourcing platform through a second contracting party hash value and registration information and answering a security question set proposed by the contracting party to obtain a corresponding security question answer set; the intelligent management equipment is suitable for writing a safety problem answer set given by the packet receiver into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain is suitable for returning a third packet side hash value to the intelligent management equipment; the intelligent management device is suitable for sending the third packet receiver hash value to the packet receiver;
the third receiver is suitable for verifying and logging in the crowdsourcing platform and submitting task completion information by adopting the third receiver hash value and registration information; the intelligent management equipment is suitable for writing task completion information submitted by the packet receiver and a security problem answer set of the packet receiver into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the intelligent management equipment is suitable for informing the packet sender to evaluate the task;
the contracting party is suitable for verifying and logging in the crowdsourcing platform through a third contracting party hash value and registration information and submitting corresponding task evaluation information; the intelligent management equipment is suitable for matching a safety problem set by a packet sender with a safety problem answer set given by a packet receiver stored in a block chain, and acquiring task completion information of the packet receiver from the block chain and sending the task completion information to the packet sender after the matching is successful;
the packet sender is suitable for evaluating the task completion condition; the intelligent management equipment is suitable for writing task evaluation information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm and informing the packet sender of the award of the issue form; the contracting party is suitable for sending the reward information to the crowdsourcing platform; and the intelligent management equipment is suitable for writing the award information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm and informing the packet receiver to obtain the award.
Optionally, the intelligent management device is adapted to send corresponding information to the block chain;
the block nodes in the block chain are suitable for carrying out majority voting on corresponding information sent by the intelligent management equipment; the intelligent management equipment is suitable for randomly numbering all block nodes in a block chain when a vote passes, performing descending order arrangement according to the numbers, selecting the majority of block nodes from the block nodes, sending corresponding information to the selected block nodes, and judging whether the previous process steps meet the requirements of crowdsourcing transaction contracts or not when the selected block nodes vote the corresponding information;
the intelligent management equipment is suitable for randomly grouping and numbering all block nodes in the block chain when the block nodes in the block chain do not pass the majority vote on corresponding information sent by the intelligent management equipment, dividing all the block nodes into two groups after the block nodes are arranged in an ascending order according to the numbers, respectively sending the corresponding information to the block nodes in the two groups for majority vote, randomly numbering all the block nodes in the block chain when the block nodes pass the vote, arranging the block nodes in a descending order according to the numbers, selecting half of the block nodes from the block nodes, sending the corresponding information to the selected block nodes, and judging whether the previous process steps meet the requirement of the crowdsourcing trade contract when the selected block nodes pass the corresponding information;
the block node is suitable for verifying the result after the corresponding information is confirmed twice when the crowdsourcing trade contract requirement is determined to be met, and selecting the block node for storing the corresponding information when the verification is passed; the selected block recording node is suitable for storing the corresponding information and obtaining the corresponding block reward, and broadcasting the details of storing the corresponding information to other block nodes to update the block chain.
Embodiments of the present invention further provide a computer-readable storage medium, on which computer instructions are stored, and when the computer instructions are executed, the method performs the steps of the crowdsourcing transaction method described in any one of the above.
The embodiment of the present invention further provides a terminal, which is characterized by comprising a memory and a processor, wherein the memory stores computer instructions capable of being executed on the processor, and the processor executes the computer instructions to execute any one of the above steps of the crowdsourcing transaction method.
Compared with the prior art, the invention has the beneficial effects that:
according to the scheme, the intelligent management equipment in the crowdsourcing transaction platform receives the registration information of the packet receiver and the packet sender, authenticates the registration information of the packet sender and the packet receiver, and writes the registration information of the packet sender and the packet receiver into a block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm when the registration information of the packet sender and the packet receiver passes the authentication; the method can effectively prevent malicious nodes from tampering data, and avoid the problem of crowdsourcing transaction data leakage, so that the security of crowdsourcing transaction can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a crowdsourcing transaction system according to an embodiment of the invention;
fig. 2 is a flow chart of a crowdsourcing transaction method according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. The directional indications (such as up, down, left, right, front, rear, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
As described in the background section, in existing crowdsourced transactions, organizations or individuals traditionally submit work done by institutional organizations or individuals to be outsourced to unspecified distributed network masses in a publicly solicited manner using internet technology. Therefore, there is a problem of poor safety.
According to the technical scheme, the intelligent management equipment in the crowdsourcing transaction platform receives the registration information of the contracting party and the contracting party, authenticates the registration information of the contracting party and the contracting party, and writes the registration information of the contracting party and the contracting party into a block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm when the authentication is passed; the data can be effectively prevented from being tampered by malicious nodes, the problem of data leakage of crowdsourcing transaction is avoided, and therefore the safety of crowdsourcing transaction can be improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
For convenience of description, the structure of the crowdsourcing transaction system in the embodiment of the invention will be briefly described below.
Fig. 1 is a schematic structural diagram of a crowdsourcing transaction system according to an embodiment of the present invention. Referring to fig. 1, a crowdsourcing transaction system may include an offering party 11, an accepting party 12, and a crowdsourcing transaction platform 13. Wherein, the contracting party 11 and the contracting party 12 are respectively coupled with the crowdsourcing transaction platform 13, and the crowdsourcing transaction platform 13 comprises an intelligent management device 131 and a blockchain 132 which are coupled with each other.
The operation of the crowdsourcing transaction system will be described.
Fig. 2 is a flow chart of a crowdsourcing transaction method according to an embodiment of the invention. Referring to fig. 1, a crowdsourcing transaction method may specifically include the following steps:
step S201: and the crowdsourcing party in the crowdsourcing transaction send corresponding registration information to the crowdsourcing transaction platform.
In particular implementations, users need to register with a crowdsourcing transaction platform before conducting crowdsourcing transactions. When registering, the user submits own registration information, such as a user name, a password and the like, on the crowdsourcing transaction platform. The party issuing the crowdsourcing task is called an issuing party, and the party receiving the crowdsourcing task is called a receiving party.
Step S202: and the intelligent management equipment in the crowdsourcing transaction platform receives the registration information of the packet receiver and the packet sender, and writes the registration information of the packet sender and the packet receiver into a block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm when the registration information of the packet sender and the packet receiver passes the authentication.
In a specific implementation, when registration information of a user is received, an intelligent management device in the crowdsourcing transaction platform first authenticates the registration information submitted by the user. The registration information of the authenticated user is sent to a blockchain in the crowdsourcing transaction platform by the intelligent management device for storage.
In an embodiment of the present invention, in order to further improve the security of the crowdsourcing transaction, when the intelligent management device sends the registration information submitted by the user to the block chain in the crowdsourcing transaction platform for storage, an improved byzantine fault tolerance algorithm is adopted to write the registration information of the user into the block chain in the crowdsourcing transaction platform. Specifically, the method comprises the following steps:
firstly, the intelligent management equipment sends the registration information of a user to the block chain; and when the voting is passed, the intelligent management equipment randomly numbers all the block nodes in the block chain, performs descending order according to the numbers, selects a majority of block nodes from the block nodes, sends the user registration information to the selected block nodes, and performs majority on the user registration information again when the selected block nodes.
When the block nodes in the block chain do not pass the majority vote on the corresponding information sent by the intelligent management equipment, the intelligent management equipment randomly groups and numbers all the block nodes in the block chain, and uniformly divides all the block nodes into two groups after the block nodes are arranged in an ascending order according to the numbers; the random grouping is beneficial to improving the randomness of the nodes subjected to voting next time, the relationship of the nodes which are communicated with each other or have correlation is broken in the random grouping process, and the malicious nodes are effectively prevented from tampering the key information. And then, the intelligent management equipment respectively sends the corresponding information to the block nodes in the two groups for majority voting, and when the voting passes, the intelligent management equipment randomly numbers all the block nodes in the block chain, performs descending order arrangement according to the numbers, selects the majority of the block nodes from the block nodes, and sends the corresponding information to the selected block nodes.
Then, when the selected block node decides that the corresponding information passes, the intelligent management device judges whether all previous process steps meet the requirements of crowdsourcing transaction contracts and determines whether all previous process steps meet the requirements of crowdsourcing transaction contracts, the block node verifies the results of the twice confirmation of the corresponding information, when the verification passes, all block nodes in the block chain select the block node for storing the corresponding information, the selected block recording node stores the corresponding information and obtains the corresponding block reward, and the details for storing the corresponding information are broadcast to other block nodes to update the block chain.
Step S203: and the block chain respectively generates digital signatures and hash values of a packet sender and a packet receiver and sends the digital signatures and the hash values to the intelligent management equipment.
In specific implementation, when the registration information of the user is successfully written into the block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm, the block chain generates a digital signature and a hash value corresponding to the user and sends the digital signature and the hash value to the intelligent management device.
Step S204: and the intelligent management equipment sends the received digital signature and the hash value to the packet receiving party and the packet sending party.
In specific implementation, when the intelligent management device receives the digital signature and the hash value corresponding to the user sent by the blockchain, the corresponding digital signature and the hash value are sent to the corresponding user, namely, a packet sender and a packet receiver.
Step S205: and the contracting party adopt the digital signature, the hash value and the registration information corresponding to the contracting party and the contracting party to log in the crowdsourcing transaction platform for crowdsourcing transaction.
In specific implementation, after receiving the information of the digital signature and the hash value sent by the intelligent management device, users serving as an issuer and an acquirer can log in the crowdsourcing transaction platform to conduct crowdsourcing transaction by using the digital signature, the hash value and the registration information corresponding to the users. Specifically, the method comprises the following steps:
first, initialization of a block chain is performed, initialization information is broadcast to all other nodes, a block node creates a crowdsourcing transaction contract, and the created crowdsourcing transaction contract is broadcast to nearby nodes. By dispersing the crowdsourcing trade contracts operating on each node, all operations and decisions can be guaranteed to be public and transparent, and uncertainty existing in the whole process is reduced.
And then, the contracting party verifies and logs in the crowdsourcing platform and issues task information by adopting the hash value and the registration information received by the contracting party in the authentication process. The intelligent management equipment writes the task issuing information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm, namely: the intelligent management equipment sends the task release information of the packet sender to the block chain; and when the decision is passed, the intelligent management equipment randomly numbers all the block nodes in the block chain, performs descending order arrangement according to the numbers, selects a majority of the block nodes from the block nodes, sends the task release information of the packet sender to the selected block nodes, and performs majority on the user registration information when the selected block nodes. When the block nodes in the block chain do not carry out majority voting on the task issuing information of the packet sender sent by the intelligent management equipment, the intelligent management equipment carries out random grouping and random numbering on all the block nodes in the block chain, and divides all the block nodes into two groups after ascending order arrangement according to the numbers; and the intelligent management equipment respectively sends the task issuing information of the packet sender to the block nodes in the two groups for majority voting, and when the voting is passed, the intelligent management equipment randomly numbers all the block nodes in the block chain, performs descending order arrangement according to the numbers, selects the majority of the block nodes from the block nodes, and sends the task issuing information of the packet sender to the selected block nodes. And then, when the selected block node makes a decision on the task issuing information of the issuing party, the intelligent management equipment judges whether all previous process steps meet the requirements of crowdsourcing transaction contracts or not, determines whether all previous process steps meet the requirements of crowdsourcing transaction contracts or not, verifies the results of the corresponding information after twice confirmation by the block node, selects block nodes for storing the task issuing information of the issuing party by all block nodes in the block chain when the verification is passed, stores the task issuing information of the issuing party by the selected block recording node, obtains corresponding block rewards, and broadcasts the details for storing the task issuing information of the issuing party to other block nodes to update the block chain. Then, the block chain returns a corresponding second packet sender hash value to the intelligent management equipment; the intelligent management device returns the received second contracting party hash value to the contracting party.
Subsequently, the packet receiver verifies and logs in the crowdsourcing platform and selects a task by receiving the corresponding hash value and the registration information in the authentication process; the intelligent management equipment writes the task selection information of the packet connecting party into the block chain by adopting the improved Byzantine fault-tolerant algorithm, namely: the intelligent management equipment sends the task selection information of the packet receiver to the block chain; and when the decision is passed, the intelligent management equipment randomly numbers all the block nodes in the block chain, performs descending order arrangement according to the numbers, selects the majority of the block nodes from the block nodes, sends the task selection information of the packet receiver to the selected block nodes, and performs majority decision on the task selection information of the packet receiver again when the selected block nodes. When the block nodes in the block chain do not carry out majority voting on the task selection information of the packet receiver sent by the intelligent management equipment, the intelligent management equipment carries out random grouping and random numbering on all the block nodes in the block chain, and uniformly divides all the block nodes into two groups after ascending arrangement according to the numbers; the intelligent management equipment respectively sends the task selection information of the packet receiver to the block nodes in the two groups for majority voting, when the vote is passed, the intelligent management equipment randomly numbers all the block nodes in the block chain, performs descending order arrangement according to the numbers and selects the majority of the block nodes from the block nodes, and the task selection information of the packet receiver is sent to the selected block nodes. Then, when the selected block node makes a decision on the task selection information of the contracting party, the intelligent management device judges whether all previous process steps meet the requirement of a crowdsourcing transaction contract, and when all previous process steps meet the requirement of the crowdsourcing transaction contract, the block node verifies the result of the corresponding information after twice confirmation, and when the verification is passed, all block nodes in the block chain select the block node storing the task selection information of the contracting party, the selected block recording node stores the task selection information of the contracting party and obtains corresponding block reward, and the details of the task selection information of the storing contracting party are broadcast to other block nodes to update the block chain. Then, the block chain returns a corresponding second packet side hash value to the intelligent management equipment; and the intelligent management equipment returns the received second packet receiver hash value to the packet receiver.
The contracting party verifies and logs in the crowdsourcing platform and selects a contracting party by using the second contracting party hash value and the registration information; the intelligent equipment writes the packet receiver selection information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm, namely: the intelligent management equipment sends the packet receiving party selection information of the packet sending party to the block chain; and when the block nodes in the block chain pass the voting, the intelligent management equipment randomly numbers all the block nodes in the block chain, performs descending order arrangement according to the numbers, selects a majority of block nodes from the block nodes, sends the selection information of the packet receiver of the packet sender to the selected block nodes, and performs majority voting on the selection information of the packet receiver of the packet sender again when the selected block nodes pass the voting. When the block nodes in the block chain do not carry out majority voting on the packet receiving party selection information of the packet sending party sent by the intelligent management equipment, the intelligent management equipment carries out random grouping and random numbering on all the block nodes in the block chain, and uniformly divides all the block nodes into two groups after ascending arrangement according to the numbers; the intelligent management equipment respectively sends the selection information of the packet receiving party of the packet sending party to the block nodes in the two groups for majority voting, when the voting is passed, the intelligent management equipment randomly numbers all the block nodes in the block chain, performs descending order arrangement according to the numbers and selects the block nodes of the majority from the block nodes, and the selection information of the packet receiving party of the packet sending party is sent to the selected block nodes. Then, when the selected block node passes the decision of the selection information of the contracting party receiving party of the contracting party, the intelligent management equipment judges whether all previous process steps meet the requirements of the crowdsourcing transaction contract, and when all previous process steps meet the requirements of the crowdsourcing transaction contract, the block node verifies the result of the corresponding information after twice confirmation, and when the verification passes, all block nodes in the block chain select the block node storing the selection information of the contracting party receiving party of the contracting party, the selected block recording node stores the selection information of the contracting party receiving party of the contracting party and obtains the corresponding block reward, and the details of the selection information of the contracting party receiving party storing the contracting party are broadcast to other block nodes to update the block chain. The block chain returns a corresponding second packet side hash value to the intelligent management equipment; and the intelligent management equipment returns the received second packet receiver hash value to the packet receiver. Meanwhile, the intelligent management equipment informs the packet sender of setting the safety problem; the contracting party sets a security question set through a digital signature and sends the security question set to the intelligent management equipment; the intelligent management equipment writes a safety problem set into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain returns a third packet sending party hash value to the intelligent management equipment; and the intelligent management equipment returns a third packet sender hash value to send to the packet sender, and informs the packet receiver to answer the security question set proposed by the packet sender. The step of writing the security problem set into the block chain by the intelligent management device using the improved byzantine fault-tolerant algorithm is executed with reference to the improved byzantine fault-tolerant algorithm, which is not described in detail.
Then, the contracting party verifies and logs in the crowdsourcing platform through a second contracting party hash value and registration information and answers a security question set provided by the contracting party to obtain a corresponding security question answer set; the intelligent management equipment writes a safety problem answer set given by the packet receiver into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain returns a third packet-receiving party hash value to the intelligent management equipment; and the intelligent management equipment sends the third packet receiver hash value to the packet receiver. The step of writing the security answer set given by the packet connecting party into the block chain by the intelligent management device by using the improved byzantine fault-tolerant algorithm is executed by referring to the improved byzantine fault-tolerant algorithm, which is not described in detail.
Then, the third receiver verifies and logs in the crowdsourcing platform and submits task completion information by adopting the third receiver hash value and registration information; the intelligent management equipment writes the task completion information submitted by the packet receiver and the safety problem answer set of the packet receiver into the block chain by adopting the improved Byzantine fault-tolerant algorithm; and the intelligent management equipment informs the packet sender to evaluate the task. The step of writing the task completion information submitted by the packet receiver and the security problem answer set of the packet receiver into the block chain by using the improved byzantine fault-tolerant algorithm by the intelligent management device is executed by referring to the improved byzantine fault-tolerant algorithm, and is not repeated.
The contracting party verifies and logs in the crowdsourcing platform through a third contracting party hash value and registration information and submits corresponding task evaluation information; the intelligent management equipment matches a safety question set by a packet sender with a safety question answer set given by a packet receiver stored in a block chain, and acquires task completion information of the packet receiver from the block chain and sends the task completion information to the packet sender after the matching is successful;
the packet sender evaluates the task completion condition, and the intelligent management equipment writes the task evaluation information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the intelligent management equipment informs the contracting party of the awards in the issuing form, and the contracting party sends the award information to the crowdsourcing platform; and the intelligent management equipment writes the reward information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm and informs the packet receiver to receive the reward. The intelligent management device writes the task evaluation information of the packet sender into the block chain by using the improved byzantine fault-tolerant algorithm, and refers to the improved byzantine fault-tolerant algorithm for execution, which is not described again.
In the improved Byzantine fault-tolerant algorithm in the embodiment of the invention, random grouping operation can be helpful for improving the randomness of nodes which are voted next time, and the relationship of the nodes which are communicated with each other or have correlation is broken in the random grouping process, so that malicious nodes are effectively prevented from tampering key information; the majority voting can avoid the problems of the prior malicious nodes or the related nodes, and effectively ensure the reliability of the related information. Meanwhile, more than half of the nodes are selected in the second majority vote, so that the resource consumption is reduced, and meanwhile, the residual malicious nodes cannot exist. Due to the reduction of the selected quantity, the proportion of most of the ingredients is increased, and the observation of the final result is facilitated.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made without departing from the spirit and scope of the invention, the scope of which is defined by the appended claims, the description and the equivalents thereof.
Claims (6)
1. A method of crowdsourcing transaction, comprising:
a packet sending party and a packet receiving party in the crowdsourcing transaction send corresponding registration information to a crowdsourcing transaction platform;
the intelligent management equipment in the crowdsourcing transaction platform receives the registration information of the contracting party and the contracting party, authenticates the registration information of the contracting party and the contracting party, and writes the registration information of the contracting party and the contracting party into a block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm when the authentication is passed; the block chain respectively generates digital signatures and hash values of a packet sender and a packet receiver and sends the digital signatures and the hash values to the intelligent management equipment; the intelligent management equipment sends the received digital signature and the hash value to the packet receiving party and the packet sending party; wherein, the registration information of the packet sender and the packet receiver is written into the block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm, and the method comprises the following steps: the intelligent management equipment sends corresponding information to the block chain; the intelligent management equipment carries out majority voting on corresponding information sent by the intelligent management equipment by using the block nodes in the block chain, when the voting passes, the intelligent management equipment randomly numbers all the block nodes in the block chain, carries out descending order arrangement according to the numbers, selects the block nodes with the half number from the block nodes, sends corresponding information to the selected block nodes, and when the selected block nodes pass the voting on the corresponding information, the intelligent management equipment judges whether the previous process steps meet the requirements of crowdsourcing transaction contracts; when the block nodes in the block chain do not pass majority voting on corresponding information sent by the intelligent management equipment, the intelligent management equipment randomly groups and numbers all the block nodes in the block chain, arranges all the block nodes in an ascending order according to the numbers and equally divides the block nodes into two groups; the intelligent management equipment respectively sends corresponding information to the block nodes in the two groups for majority voting, when the vote is passed, the intelligent management equipment randomly numbers all the block nodes in the block chain, performs descending order arrangement according to the numbers, selects the block nodes with the majority, sends the corresponding information to the selected block nodes, and when the selected block nodes pass the vote of the corresponding information, the intelligent management equipment judges whether the previous process steps meet the requirements of crowdsourcing transaction contracts; when the crowdsourcing contract requirement is determined to be met, the block nodes verify the result of the corresponding information after twice confirmation, and when the verification is passed, all the block nodes in the block chain select the block nodes for storing the corresponding information, the selected block recording nodes store the corresponding information and obtain corresponding block rewards, and the details for storing the corresponding information are broadcasted to other block nodes to update the block chain;
and the contracting party adopt the digital signature, the hash value and the registration information corresponding to the contracting party and the contracting party to log in the crowdsourcing transaction platform for crowdsourcing transaction.
2. The crowdsourcing transaction method according to claim 1, wherein the crowdsourcing transaction platform is logged in by the crowdsourcing transaction method between the contracting party and the issuing party by using a digital signature, a hash value and registration information corresponding to the contracting party and the issuing party to perform crowdsourcing transaction, and comprises:
the packet sender verifies and logs in a crowdsourcing platform and issues task information by adopting the received hash value and registration information corresponding to the packet sender, and the intelligent management equipment writes the task issuing information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain returns a corresponding second packet sender hash value to the intelligent management equipment; the intelligent management equipment returns the received second packet sender hash value to the packet sender;
the packet receiver verifies and logs in the crowdsourcing platform and selects a task by receiving the corresponding hash value and the registration information; the intelligent management equipment writes the task selection information of the packet connecting party into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain returns a corresponding second packet side hash value to the intelligent management equipment; the intelligent management equipment returns the received second packet receiver hash value to the packet receiver;
the contracting party verifies and logs in the crowdsourcing platform and selects a contracting party by using the second contracting party hash value and the registration information; the intelligent equipment writes the packet receiver selection information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm, and informs the packet sender of setting the safety problem; the contracting party sets a safety problem set through a digital signature and sends the safety problem set to the intelligent management equipment; the intelligent management equipment writes a safety problem set into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain returns a third packet sending party hash value to the intelligent management equipment; the intelligent management equipment returns a third packet sender hash value to be sent to the packet sender, and informs the packet receiver of answering the security question set proposed by the packet sender;
the contracting party verifies and logs in the crowdsourcing platform through a second contracting party Hash value and registration information and answers a safety question set provided by the contracting party to obtain a corresponding safety question answer set; the intelligent management equipment writes a safety problem answer set given by the packet receiver into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain returns a third packet side hash value to the intelligent management equipment; the intelligent management equipment sends the third packet receiver hash value to the packet receiver; the third packet receiver verifies and logs in the crowdsourcing platform and submits task completion information by adopting the third packet receiver hash value and the registration information; the intelligent management equipment writes the task completion information submitted by the packet receiver and the safety problem answer set of the packet receiver into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the intelligent management equipment informs the packet sender to evaluate the tasks;
the contracting party verifies and logs in the crowdsourcing platform through a third contracting party hash value and registration information and submits corresponding task evaluation information; the intelligent management equipment matches a security question set by a packet sender with a security question answer set given by a packet receiver stored in a block chain, and after matching is successful, task completion information of the packet receiver is obtained from the block chain and sent to the packet sender;
the packet sender evaluates the task completion condition, and the intelligent management equipment writes the task evaluation information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the intelligent management equipment informs the contracting party of a releasing form to reward, and the contracting party sends reward information to the crowdsourcing platform; and the intelligent management equipment writes the reward information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm and informs the packet receiver to receive the reward.
3. A crowdsourcing transaction system is characterized by comprising a packet sending party, a packet receiving party and a crowdsourcing transaction platform; the subcontracting party and the contracting party are respectively coupled with the crowdsourcing transaction platform, and the crowdsourcing transaction platform comprises intelligent management equipment and a block chain which are coupled with each other;
the system comprises a crowdsourcing party and a crowdsourcing party in crowdsourcing transaction, wherein the crowdsourcing party and the crowdsourcing party are suitable for sending registration information corresponding to the crowdsourcing party to a crowdsourcing transaction platform;
the intelligent management equipment in the crowdsourcing transaction platform is suitable for receiving the registration information of the contracting party and the contracting party, authenticating the registration information of the contracting party and the contracting party, and writing the registration information of the contracting party and the contracting party into a block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm when the authentication is passed; the block chain is suitable for respectively generating digital signatures and hash values of a packet sender and a packet receiver and sending the digital signatures and the hash values to the intelligent management equipment; the intelligent management device is suitable for sending the received digital signature and the hash value to the packet receiver and the packet sender; when the registration information of the packet sender and the packet receiver is written into the block chain in the crowdsourcing transaction platform by adopting an improved Byzantine fault-tolerant algorithm, the intelligent management equipment is suitable for sending corresponding information to the block chain; the block nodes in the block chain are suitable for carrying out majority voting on corresponding information sent by the intelligent management equipment; the intelligent management equipment is suitable for randomly numbering all block nodes in a block chain when a vote passes, performing descending order arrangement according to the numbers, selecting the majority of block nodes from the block nodes, sending corresponding information to the selected block nodes, and judging whether the previous process steps meet the requirements of crowdsourcing transaction contracts or not when the selected block nodes vote the corresponding information; the intelligent management equipment is suitable for randomly grouping and numbering all block nodes in the block chain when the block nodes in the block chain do not pass the majority vote on corresponding information sent by the intelligent management equipment, dividing all the block nodes into two groups after the block nodes are arranged in an ascending order according to the numbers, respectively sending the corresponding information to the block nodes in the two groups for majority vote, randomly numbering all the block nodes in the block chain when the block nodes pass the vote, arranging the block nodes in a descending order according to the numbers, selecting half of the block nodes from the block nodes, sending the corresponding information to the selected block nodes, and judging whether the previous process steps meet the requirement of the crowdsourcing trade contract when the selected block nodes pass the corresponding information; the block node is suitable for verifying the result after the corresponding information is confirmed twice when the crowdsourcing trade contract requirement is determined to be met, and selecting the block node for storing the corresponding information when the verification is passed; the selected block recording node is suitable for storing the corresponding information and obtaining the corresponding block reward, and broadcasting the details of the stored corresponding information to other block nodes to update the block chain;
the contracting party and the issuing party are also suitable for logging in the crowdsourcing transaction platform to carry out crowdsourcing transaction by adopting the digital signature, the hash value and the registration information corresponding to the contracting party and the issuing party.
4. The crowdsourcing transaction system of claim 3,
the packet sender is suitable for verifying and logging in the crowdsourcing platform and issuing task information by adopting the received hash value and the registration information corresponding to the packet sender; the intelligent management equipment is suitable for writing the task issuing information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain is suitable for returning a corresponding second packet sender hash value to the intelligent management equipment; the intelligent management device is suitable for returning the received second packet sender hash value to the packet sender;
the packet receiver is suitable for verifying and logging in the crowdsourcing platform by adopting the received corresponding hash value and the registration information and selecting a task; the intelligent management equipment is suitable for writing the task selection information of the packet receiver into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain is suitable for returning a corresponding second packet side hash value to the intelligent management equipment; the intelligent management device is suitable for returning the received second packet receiver hash value to the packet receiver;
the contracting party is suitable for verifying and logging in the crowdsourcing platform and selecting a contracting party by using the second contracting party hash value and the registration information; the intelligent equipment is suitable for writing the packet receiver selection information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm and informing the packet sender of setting the safety problem; the contracting party is suitable for setting a safety problem set through a digital signature and sending the safety problem set to the intelligent management equipment; the intelligent management equipment is suitable for writing a security problem set into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain is suitable for returning a third packet sending party hash value to the intelligent management equipment; the intelligent management equipment is suitable for returning a third packet sender hash value to be sent to the packet sender, and informing the packet receiver to answer a security question set proposed by the packet sender;
the contracting party is suitable for verifying and logging in the crowdsourcing platform through a second contracting party hash value and registration information and answering a security question set proposed by the contracting party to obtain a corresponding security question answer set; the intelligent management equipment is suitable for writing a safety question answer set given by the packet connecting party into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the block chain is suitable for returning a third packet-receiving party hash value to the intelligent management equipment; the intelligent management device is suitable for sending the third packet receiver hash value to the packet receiver;
the third packet receiver is suitable for verifying and logging in the crowdsourcing platform by adopting the third packet receiver hash value and registration information and submitting task completion information; the intelligent management equipment is suitable for writing task completion information submitted by the packet connecting party and a safety problem answer set of the packet connecting party into the block chain by adopting the improved Byzantine fault-tolerant algorithm; the intelligent management equipment is suitable for informing the packet sender to evaluate the task;
the contracting party is suitable for verifying and logging in the crowdsourcing platform through a third contracting party hash value and registration information and submitting corresponding task evaluation information; the intelligent management equipment is suitable for matching a safety problem set by a packet sender with a safety problem answer set given by a packet receiver stored in a block chain, and acquiring task completion information of the packet receiver from the block chain and sending the task completion information to the packet sender after the matching is successful;
the packet sender is suitable for evaluating the task completion condition; the intelligent management equipment is suitable for writing task evaluation information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm and informing the packet sender of the award of the issue form; the contracting party is suitable for sending the reward information to the crowdsourcing platform; and the intelligent management equipment is suitable for writing the reward information of the packet sender into the block chain by adopting the improved Byzantine fault-tolerant algorithm and informing the packet receiver to receive the reward.
5. A computer readable storage medium having stored thereon computer instructions, wherein said computer instructions when executed perform the steps of the crowdsourcing transaction method of claim 1 or 2.
6. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions capable of being executed on the processor, the processor when executing the computer instructions performing the steps of the crowdsourcing transaction method of claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910094488.1A CN109886810B (en) | 2019-01-30 | 2019-01-30 | Crowdsourcing transaction method and system, readable storage medium and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910094488.1A CN109886810B (en) | 2019-01-30 | 2019-01-30 | Crowdsourcing transaction method and system, readable storage medium and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109886810A CN109886810A (en) | 2019-06-14 |
| CN109886810B true CN109886810B (en) | 2022-08-30 |
Family
ID=66927412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910094488.1A Active CN109886810B (en) | 2019-01-30 | 2019-01-30 | Crowdsourcing transaction method and system, readable storage medium and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109886810B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460634B (en) * | 2019-07-02 | 2020-10-27 | 特斯联（北京）科技有限公司 | Edge computing consensus request management method and system |
| CN111400395B (en) * | 2020-02-17 | 2023-06-13 | 浙江大学 | Knowledge graph crowdsourcing platform based on distributed account book |
| CN112446611A (en) * | 2020-11-25 | 2021-03-05 | 杭州趣链科技有限公司 | Crowdsourcing service management system and method based on block chain |
| CN112348487A (en) * | 2020-11-30 | 2021-02-09 | 深圳淘力网络科技有限公司 | Intelligent outsourcing system based on block chain and using method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103405A (en) * | 2017-03-22 | 2017-08-29 | 暨南大学 | A kind of mass-rent system and its building method based on block chain technology |
| CN109194708A (en) * | 2018-07-24 | 2019-01-11 | 哈尔滨工程大学 | A kind of distributed memory system and its identity identifying method based on block chain technology |
-
2019
- 2019-01-30 CN CN201910094488.1A patent/CN109886810B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103405A (en) * | 2017-03-22 | 2017-08-29 | 暨南大学 | A kind of mass-rent system and its building method based on block chain technology |
| CN109194708A (en) * | 2018-07-24 | 2019-01-11 | 哈尔滨工程大学 | A kind of distributed memory system and its identity identifying method based on block chain technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109886810A (en) | 2019-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109886810B (en) | Crowdsourcing transaction method and system, readable storage medium and terminal | |
| CN106533696B (en) | Identity identifying method, certificate server and user terminal based on block chain | |
| CN108898389B (en) | Content verification method and device based on block chain and electronic equipment | |
| US20200382326A1 (en) | Digital certificate verification method and apparatus, computer device, and storage medium | |
| US20200313884A1 (en) | Smart contract execution using distributed coordination | |
| CN110300969B (en) | Voting-consensus distributed account book | |
| US20210119807A1 (en) | Blockchain account migration | |
| CN109493204B (en) | Service accounting method based on block chain and terminal equipment | |
| CN104869175B (en) | Cross-platform account resource-sharing implementation method, apparatus and system | |
| US11270303B2 (en) | Cryptocurrency-based event participation verification | |
| Golle et al. | Secure distributed computing in a commercial environment | |
| CN108492108A (en) | Across the chain communication means of block chain, system and computer readable storage medium | |
| CN112000744B (en) | Signature method and related equipment | |
| CN111241517A (en) | Method and device for constructing biological characteristic verification question-answer library | |
| CN110177124A (en) | Identity identifying method and relevant device based on block chain | |
| CN107862198A (en) | One kind accesses verification method, system and client | |
| CN110990790B (en) | Data processing method and equipment | |
| CN110321730A (en) | A kind of method, block chain node and the storage medium of operation data processing | |
| CN111191212B (en) | Block chain-based digital certificate processing method, device, equipment and storage medium | |
| CN112398949A (en) | Transaction confirmation method, system, device and computer equipment | |
| CN112861084A (en) | Service processing method, device, equipment and computer readable storage medium | |
| CN110535652A (en) | A kind of system and method by each operation system data integration displaying and unified login | |
| CN111787034A (en) | Block generation method, synchronization method, device, block chain system and storage medium | |
| CN110445791A (en) | Plug-in authentication method and device, the storage method of plug-in authentication information and device | |
| CN115150072A (en) | Cloud network issuing authentication method, equipment, device and storage medium |
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 |