A Secure and Efficient Charitable Donation System Based on Ethereum Blockchain and Searchable Encryption

Abstract

With the flourishing development of philanthropy, more and more people are actively involved in charitable activities. However, traditional charitable systems face several challenges, including low levels of information, lack of transparency in the flow of funds, lack of accountability and vulnerability to tampering. To address these issues, Ethereum provides a distributed platform that can execute smart contracts, ensuring adherence to predefined rules and mitigating the possibility of fraud and third-party interference. Blockchain, as a decentralized distributed ledger technology, stores data records across multiple computer nodes and employs cryptographic methods to ensure data security and reliability. Its main features include decentralization, immutability, transparency and traceability. However, in the construction of a secure, reliable, and third-party-independent charitable donation system, challenges associated with privacy protection and search efficiency need to be addressed. To tackle these issues, this paper proposes a solution based on the Ethereum blockchain, highlighting the role of searchable encryption methods. This solution employs searchable encryption methods, enabling search operations to perform without decrypting the ciphertext, effectively safeguarding participants’ privacy information, and enhancing search efficiency. This system is more secure, trustworthy, and efficient compared to traditional charitable donation systems.In the implementation of the proposed solution, we conduct a detailed analysis of the security of the searchable encryption scheme. We successfully counter key guessing attacks and multi-keyword selection attacks. Furthermore, we perform a security analysis of the smart contract to verify the system’s feasibility and security. Additionally, we comprehensively compare the proposed solution with existing alternatives and evaluate its performance. By introducing Ethereum blockchain technology and searchable encryption methods, we provide a secure and reliable solution for the charitable donation field, significantly enhancing transparency and efficiency in charitable endeavors. This initiative not only safeguards the interests of donors and recipients but also makes a positive contribution to the development of social public welfare activities.

Topics & Concepts