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Method and system for secure data record distribution using a blockchain

A data recording and blockchain technology, applied in digital transmission systems, transmission systems, data processing applications, etc., can solve problems such as insufficient encryption solutions, less secure transactions, and damage applications, and achieve a safe and stable data distribution process. Effect

Pending Publication Date: 2019-11-29
NCHAIN HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, CoinJoin still involves at least one participant who knows another participant's input-output relationship, making it only partially anonymous, leading to less secure transactions and insufficient cryptographic solutions
[0008] Potential traceability of records in blockchain reveals implementation flaws that could harm some applications

Method used

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  • Method and system for secure data record distribution using a blockchain
  • Method and system for secure data record distribution using a blockchain
  • Method and system for secure data record distribution using a blockchain

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Embodiment Construction

[0034] In this application, the term "and / or" is intended to cover all possible combinations and subcombinations of the listed elements, including any one element, any subcombination or all elements listed individually, without necessarily excluding additional elements.

[0035] In this application, the phrase "at least one of" is intended to cover any one or more of the listed elements, including any one, any subcombination, or all of the listed elements, without necessarily excluding any additional components, and not necessarily all components.

[0036] first reference figure 1 , figure 1 An example blockchain network 100 associated with blockchains is shown in block diagram form. A blockchain network is a peer-to-peer open membership network that anyone can join without an invitation or the consent of other members. A distributed electronic device running an instance of the blockchain protocol upon which the blockchain network 100 operates may participate in the blockch...

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PUM

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Abstract

A computer-implemented method for improving the security of a data record distribution process using a blockchain having a group of input nodes and a group of output nodes, each group having a private-public key pair, but wherein the nodes only have a key share of their respective private key and no node has a full private key. Using threshold signature scheme, secret share joining, and stealth addresses, data records from the input nodes are pooled at a stealth address determined through collaborative action of the input nodes, requiring cooperative determination of their public key, a sharedsecret, and the stealth address. The public key is copied into the transaction. The output nodes locate the transaction and extract the public key, collaboratively verify its authenticity, and collaboratively determine the shared secret. Having done so, the output nodes may, collectively, sign a second transaction for distributing data records from the stealth address to the output addresses. Theinvention may be used in conjunction with the Bitcoin blockchain, for example, or another blockchain implementation.

Description

technical field [0001] The present invention relates generally to blockchain transactions, and more particularly to methods and apparatus for generating and executing a data record distribution process that separates input from output for increased security. Background technique [0002] In this article, we use the term 'blockchain' to include all forms of electronic, computer-based distributed ledgers. These include, but are not limited to, blockchain and transaction chain technologies, permissioned and permissionless ledgers, shared ledgers and variations thereof. Although other blockchain implementations have been proposed and developed, the most widely known application of blockchain technology is the Bitcoin ledger. Although Bitcoin is referred to herein for convenience and illustrative purposes, it should be noted that the present invention is not limited to use with the Bitcoin blockchain, and that alternative blockchain implementations and protocols fall within the ...

Claims

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Application Information

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IPC IPC(8): G06Q20/06G06Q20/38
CPCG06Q20/065G06Q20/3829H04L9/085H04L9/3026G06Q20/0658G06Q20/3678G06Q20/3825H04L9/0618H04L9/0825H04L9/3265H04L9/50
Inventor 马丁·西维尔丹尼尔·约瑟夫
Owner NCHAIN HLDG LTD