An anonymous and fair auction system based on blockchain

Consumer approval of the online auction paradigm is demonstrated by rapidly expanding transaction volumes. Bidders can access a wider variety products, and sellers reach larger audience through platforms. However, privacy concerns have reduced users’ trust in platforms, complicated disputes led consumers to lose faith auctions, negatively impacting market growth. The emergence blockchain technology has brought new approach solving these problems. Blockchain generation information that decentralized, transparent, traceable, anti-tampering, unforgeable, following big data, cloud computing, artificial intelligence. In this paper, we present blockchain-based solution as well an protocol uses ring signatures guarantee anonymity. Three features summarize essay: (1) Using ensure process tamper-proof, unforgeable. (2) signature-based anonymous allows for concealing bidders’ public keys group keys. Because malicious individuals are prevented from evaluating data tracking numerous transactions single key, significantly protects privacy. (3) proposed scheme effectively resolves may arise during auction.