Implementation of a Blockchain-based Smart Shopping System for Automated Bill Generation Using Smart Carts with Cryptographic Algorithms

Abstract

On holidays and weekends, retail malls in metro areas have heavy foot traffic. Billing in the conventional manner, which entails employees standing in a line and scanning each customer’s purchase with a barcode scanner, is time-consuming. When there is a mistake in barcode scanners, the cashier may have to manually input the barcode number. As a consequence of this technique, clients are inconvenienced by lengthy lines at the billing counters. To overcome this issue, this chapter implemented a blockchain based smart shopping system. Here, smart carts are employed which performs the automated bill generation using the information from the Radio Frequency Identification (RFID) reader. The data from the smart carts are validated using the smart contracts and stored in the blockchain network for efficient bill generation. To avoid the data from being tampered, we have proposed Synchronous Discrete Twofish Encryption Algorithm (SDTEA), optimized using Genetically Modified Firefly Optimization Algorithm (GM-FOA). The bill is generated using the encrypted data and payment can be done after decryption of data. The simulation findings reveal that, by using this approach, a lot of time and man power can be saved. The proposed system is compared with conventional systems to prove its efficiency.