Solution for privacy disclosure in data presentation of Ethereum smart contract

A privacy disclosure and smart contract technology, applied in the blockchain field, can solve problems such as the difficulty of tampering with the record table, and achieve the effect of promoting further development and speeding up the landing process.

Pending Publication Date: 2020-11-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The open and transparent nature of the blockchain makes it very difficult to tamper with the record table, and also exposes too much transaction records to the public

Method used

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  • Solution for privacy disclosure in data presentation of Ethereum smart contract
  • Solution for privacy disclosure in data presentation of Ethereum smart contract
  • Solution for privacy disclosure in data presentation of Ethereum smart contract

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0033] The present invention is aimed at the data privacy protection problem in the data gift process when the smart contract in the Ethereum interacts with the outside world. Aiming at a specific application case in the real world - medical insurance compensation, a method based on The zero-knowledge proof algorithm of bilinear mapping in cryptography is used to model smart contracts and build systems. This system is used to solve how data can be safely and credibly transmitted on the blockchain through data gifts in a non-public manner. After analyzing the actual situation, the present invention decides to realize the expense reimbursement type medical insurance, which is similar to social insurance, that is, the outpatient medical expenses spent by the patients in the hospital are reimbursed by the insurance company. Type level pays a certa...

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Abstract

The invention discloses a solution for privacy disclosure in data presentation of an Ethereum smart contract, and aims to solve the privacy protection problem that some private sensitive data is published due to the public and transparent characteristics of a block chain in the data presentation process when the smart contract in the Ethereum interacts with the external world.

Description

technical field [0001] The invention relates to a solution to the privacy leakage problem in the data gift of the Ethereum smart contract, belonging to the field of block chains. Background technique [0002] Smart contracts are programs that execute automatically on the blockchain. They are designed to allow reliable transactions to take place without third-party oversight and guarantee that these transactions are traceable and tamper-proof. Ethereum is a distributed virtual machine. Users can encapsulate customized requirements into functions and deploy them to the Ethereum test network. This is a program called a smart contract. The contract language is Turing's complete bytecode language, that is, EVM bytecode, which is the outstanding advantage of Ethereum in realizing smart contracts. Framework users agree on the content of the contract in advance, create a new contract in the Ethereum network, conduct contract transactions, and complete the Ethereum contract or tran...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F21/60G06F16/27
CPCG06F21/6245G06F21/602G06F16/27
Inventor 刘哲王昊
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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