Design And Implementation Of Charity System Based On Blockchain

In order to solve the problems of lack of credibility,low efficiency and data traceability of charitable organizations in the field of charity,this paper designs and implements a charity system based on the characteristics of blockchain.The system based on blockchain is to ensure the safe and reliable transaction of charitable organizations in the case of insufficient credibility.Different from the traditional charity system,this system adopts the smart contract development method based on Ethereum.By using a new data storage model,the uploaded project data is encrypted and decrypted according to the required requirements,so that the data has confidentiality,reduce the size of data to upload at the same time.At the same time,the data in the public chain can not be modified to make up for the transaction in the public chain at the same time,there may be insufficient data fraud.The paper begins with a detailed introduction of the background of the research topic and the value of the development in the field.After that,the paper gives an overall overview of the content to be concerned.Then,we will start with the traditional charity system,introduce this design and this implementation of the system from the three aspects of blockchain technology and Ethereum technology,and analyzes their characteristics in different situations.After that we analyzed the requirements of blockchain technology in the field of charity from the research,and then we decided to make the system to be different parts according to the requirements.In order to save the cost of the chain,choose the operation of encryption and compression of the information on the chain,which can effectively save the processing cost of the chain.Then,each module is implemented according to the design scheme.Finally,the system is tested effectively,which proves that the system has the performance of making the fund flow in the charity field more transparent and open,to make sure the transaction data can be monitored,traceable and transaction records can not be tampered with.