Group-building method and device, transaction method and system

A transaction method and transaction technology, applied in the blockchain field, can solve problems such as inability to guarantee transaction concealment and privacy, and achieve the effects of ensuring security and reliability, improving efficiency, and saving time

Inactive Publication Date: 2019-02-22
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that

Method used

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  • Group-building method and device, transaction method and system
  • Group-building method and device, transaction method and system
  • Group-building method and device, transaction method and system

Examples

Experimental program
Comparison scheme
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no. 1 example

[0077] see figure 1 , figure 1 It is a schematic flowchart of a group building method provided by an embodiment of the present invention.

[0078] Such as figure 1 As shown, the method includes:

[0079] S100: The first node broadcasts the group building information initiated by it in the blockchain, and the group building information includes IDs corresponding to member nodes.

[0080] In the existing technology, all transactions in the blockchain are carried out publicly throughout the blockchain. That is, by broadcasting the transaction content in the blockchain, all nodes in the blockchain will judge the content of the transaction. However, the concealment and privacy of transactions between some nodes cannot be ensured through the methods in the prior art.

[0081] In the embodiment, when a node needs to conduct a private transaction, it can directly initiate group building information, and broadcast the group building information in the blockchain, so that the node ...

no. 2 example

[0092] This embodiment is based on the first embodiment.

[0093] see figure 2 , figure 2 It is a schematic flowchart of a group building method provided by another embodiment of the present invention.

[0094] Such as figure 2 As mentioned, after S300 in the first embodiment, the method further includes:

[0095] S1: The second node sends a joining request to the transaction group, wherein the blockchain also includes the second node.

[0096] In order to achieve the flexibility of group building and private transactions, the nodes in the transaction group are not static. For example: when any node in the blockchain wants to join the transaction group, it can send a join request to the transaction group.

[0097] Specifically: when the second node wants to join the transaction group, it sends a joining request to the transaction group.

[0098] S2: The first node and member nodes in the transaction group respectively feed back the joining request to obtain second fee...

no. 3 example

[0109] This embodiment is based on the first or second embodiment. When this embodiment is based on the first embodiment, after S300 in the first embodiment, the method further includes:

[0110] S4: The blockchain writes information corresponding to the transaction group formed by the first node, member nodes, and second nodes into the ledger of the blockchain.

[0111] As we all know, in the blockchain, any action of each node will be recorded in the ledger in the form of a journal. In order to quickly learn the information of the members in the current transaction group, in this embodiment, the updated nodes (that is, newly joined nodes or exited nodes) and the original member nodes in the transaction group are written into the ledger.

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Abstract

Embodiments of the present invention relate to a grouping method and apparatus, a transaction method and a system. The group building method comprises the following steps: a first node broadcasts thegroup building information initiated by the first node in a block chain, and the group building information comprises an ID corresponding to a member node; When the member node corresponding to the IDreceives the group building information, the group building information is fed back to obtain the first feedback information; When the first feedback information is the member node agrees to set up the group information, the first node and the member node create a transaction group corresponding to the set up information according to the first feedback information. According to the technical proposal provided by the present embodiment, the invention avoids the technical drawbacks in the prior art that when all transactions in the block chain are carried out in the whole block chain, the concealment of the transactions cannot be ensured, and realizes the technical effect that internal transactions can occur between some nodes, and the internal transactions are not informed by the externalnodes, thereby realizing the privacy of the transactions occurring in the internal nodes.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of block chains, and in particular, to a group building method and device, and a transaction method and system. Background technique [0002] With the continuous development and updating of blockchain technology, the application of blockchain technology is becoming more and more extensive. [0003] All transactions in the current blockchain are public throughout the blockchain. That is, by broadcasting the transaction content in the blockchain, the nodes that receive the broadcast will collectively judge the transaction content. If the majority of nodes determine that the transaction is valid, the transaction will take effect, otherwise the transaction cannot be established. [0004] In the process of realizing the present invention, the inventor found that at least there is: the concealment and privacy of transactions cannot be guaranteed. Contents of the invention [0005] In ord...

Claims

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Application Information

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IPC IPC(8): G06Q40/04G06Q20/38H04L12/18H04L29/08
CPCG06Q20/382G06Q40/04H04L12/185H04L67/1048
Inventor 张伦泳
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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