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Trusted Letter of Guarantee Based on Blockchain

A blockchain, guarantor technology, applied in the fields of homomorphic encrypted communication, secure communication devices, digital data protection, etc., can solve the problems of high cost, lack of transparency, and low efficiency of message routing

Active Publication Date: 2022-06-07
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to different international technical or financial regulations, messages may pass through multiple nodes before reaching their final destination, making them time-consuming, expensive and lacking transparency
When more than two parties are involved, message routing between multiple parties becomes less efficient under a peer-to-peer infrastructure

Method used

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  • Trusted Letter of Guarantee Based on Blockchain
  • Trusted Letter of Guarantee Based on Blockchain
  • Trusted Letter of Guarantee Based on Blockchain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] This article describes the techniques used to process guarantees based on blockchain networks. These techniques generally involve receiving, from a computing device associated with the applicant, an application for a letter of guarantee made by at least a first guarantor to a beneficiary, wherein the application includes information related to the identity of the applicant, the identity of the beneficiary, and one or more of enforcing the guarantee. information associated with a number of predetermined conditions; generating a digital version of the guarantee based on the information included in the application; encrypting the digital version to generate the ciphertext of the guarantee; generating one or more values ​​related to the guarantee Multiple Zero-Knowledge Proofs (ZKPs); the ciphertext of the guarantee to the blockchain network and one or more zero-knowledge proofs to store the ciphertext of the guarantee on the blockchain, where the ciphertext of the guarantee...

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Abstract

Disclosed herein are methods, systems and apparatus for processing blockchain-based letter of guarantee information, including computer programs encoded on computer storage media. One of the methods includes: receiving the ciphertext of the digital document specifying the bond, and one or more zero-knowledge proofs (ZKPs) related to one or more values ​​associated with the bond; verifying the one or more zero-knowledge proofs; upon successful After verifying one or more zero-knowledge proofs, storing the ciphertext into the blockchain based on executing a consensus algorithm; receiving a withdrawal request for the letter of guarantee from a first computing device associated with the beneficiary or a beneficiary's representative; based on Executing a consensus algorithm to store the withdrawal request into the blockchain; communicating a first message regarding the withdrawal request to a second computing device associated with the first surety.

Description

technical field [0001] This article deals with providing trusted guarantees based on blockchain technology. Background technique [0002] A distributed ledger system (DLS), also known as a consensus network and / or a blockchain network, enables participating entities to store data securely and immutably. Without citing any specific use case, DLS is often referred to as a blockchain network. Examples of types of blockchain networks may include public blockchain networks, private blockchain networks, and consortium blockchain networks. The consortium blockchain network is provided for a selected group of entities that control consensus processing, and the consortium blockchain network includes an access control layer. [0003] Digital networks have enabled people around the world to find information and interact easily and efficiently. For example, social media platforms make it easy for people to share messages, photos and videos with friends and colleagues. Online shoppin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q20/38G06Q20/12H04L9/32H04L9/08H04L9/00H04L9/40H04L67/1097
CPCG06Q20/3829G06Q20/3827G06Q20/3825G06F21/6245G06F21/64G06F21/53H04L9/3218H04L67/1097H04L9/008H04L9/3239G06Q20/12H04L63/12H04L9/50G06Q20/3823G06Q2220/00H04L9/0637H04L9/0643
Inventor 陆旭明周徽叶国俊
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD