Blockchain-Based Secure Transactions

Abstract

Traditional transactions have several issues, like physical cash, for instance, boarding fake bank notes and also building stock to use money significantly less complex. In this digital marketing world, hackers are using many ways and techniques to scam money. The three most common online transaction frauds in India are scam using QR codes, UPI frauds, remote access/screen sharing frauds. Protection and privacy are the main anticipated features in the field of online transactions, which can be fulfilled by blockchain technology. This proposal is crucial as it is the first attempt to apply blockchain technology to payment services. In the proposed system, due to high level of fraud, blockchain technology is used. Hackers attack one block and change their address, and hence, transaction is blocked and amount will also be refunded using blockchain approach hashing algorithms. The main steps of blockchain used in the proposed system are transaction data, changing blocks with a hash, and creating signature (hash) using cryptographic hash function.