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System and method for providing privacy and security protection in blockchain-based private transactions

A blockchain and transaction technology, applied in transmission systems, digital transmission systems, secure communication devices, etc., to achieve convenient and safe creation and management, improve security and privacy protection, and prevent malicious behaviors

Active Publication Date: 2020-05-15
ADVANCED NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Missing information may conflict with the representation of private transactions recorded in public ledgers, which may indicate that private transactions involving uninformed parties are complete

Method used

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  • System and method for providing privacy and security protection in blockchain-based private transactions
  • System and method for providing privacy and security protection in blockchain-based private transactions
  • System and method for providing privacy and security protection in blockchain-based private transactions

Examples

Experimental program
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Embodiment Construction

[0035] figure 1 An example of a blockchain network 100 is shown according to some embodiments. As shown, blockchain network 100 may include one or more client devices (eg, Node A, Node B, etc.) coupled to blockchain system 112 . Client devices may include light nodes. Instead of downloading the full blockchain, light nodes can only download block headers to verify the authenticity of blockchain transactions. A light node can be served by and effectively depend on a full node (eg, a node in the blockchain system 112 ) to access more functionality of the blockchain. Light nodes can be implemented in electronic devices such as laptops, mobile phones, etc. by installing appropriate software.

[0036] The blockchain system 112 may include multiple blockchain nodes (eg, node 1, node 2, node 3, node 4, node i, etc.), which may include full nodes. Full nodes can download every block and blockchain transaction and check them against the blockchain's consensus rules. The blockchain...

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PUM

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Abstract

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing blockchain-based private transactions are provided. One of the methods is performed bya first blockchain node to a private transaction, the method including: determining one or more second blockchain nodes to the private transaction according to a blockchain contract in a public blockchain; transmitting transaction information to the one or more second blockchain nodes, the transaction information comprising one or more senders of the private transaction, one or more recipients ofthe private transaction, and one or more transaction amounts of the private transaction; obtaining a signature from each of a number of the one or more second blockchain nodes certifying receipt of the transaction information; and in response to obtaining the number of the signatures over a threshold, storing at least a representation of the private transaction and the signatures in the public blockchain.

Description

technical field [0001] The present application generally relates to methods and apparatus for providing privacy and security protections for blockchain-based private transactions. Background technique [0002] Blockchain provides data storage in a decentralized manner by keeping data in a series of data blocks that have a sequential relationship with each other. The blockchain is maintained and updated by a network of nodes, which are also responsible for validating data. The stored data may involve transactions between different parties, and the blockchain on which the data is stored can also be referred to as a shared ledger that tracks these transactions. [0003] A valid transaction typically includes elements such as a sender (eg, sender's account address), a receiver (eg, receiver's account address), and a transaction amount. In traditional blockchain systems, to prevent double spending and other fraudulent activities, these elements are explicitly disclosed for veri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32
CPCH04L2209/56H04L9/3247H04L9/3239H04L9/3255H04L9/50G06Q20/0658G06Q20/3825G06Q20/405H04L9/0637
Inventor 杨达一夏凝李康
Owner ADVANCED NEW TECH CO LTD
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