PRIVACY-PRESERVING ELECTRONIC TICKET SCHEME WITH ATTRIBUTE-BASED CREDENTIALS

Abstract

With the growing adoption of digital ticketing systems in transportation, entertainment, and public services, concerns over user privacy and data security have intensified. Traditional electronic ticketing (e-ticket) systems often require users to disclose personal information, leading to potential risks of identity theft, mass surveillance, and unauthorized tracking. This paper presents a Privacy-Preserving Electronic Ticket Scheme (P-PETS) that ensures secure, anonymous, and verifiable ticket transactions without exposing users' identities. Our scheme leverages cryptographic techniques such as zero-knowledge proofs (ZKPs) and blind signatures to enable ticket issuance, validation, and transfer while maintaining user anonymity. Additionally, a decentralized ledger is integrated to enhance security and prevent double-spending of e-tickets. The proposed system allows ticket verification by authorized entities without revealing the user's identity or transaction history, thereby addressing major privacy concerns. We evaluate the security and efficiency of P-PETS through theoretical analysis and experimental simulations. Results show that our scheme provides strong privacy guarantees while maintaining computational efficiency and scalability. Compared to traditional e-ticketing systems, P-PETS significantly reduces the risk of data breaches and unauthorized surveillance. This research contributes to the development of privacy-aware digital ticketing systems that balance security, usability, and anonymity.