Blockchain-based Mutual Authentication Model for Customer Services

The Identity Management (IDM) system faces a challenge in its current state due to the Public Key Infrastructure (PKI) based identity verification process that involves stakeholders sharing excessive information with a trusted central party. This centralization of IDM is problematic, intricate, and increases the risk of identity theft and privacy infringement. Thus, it is imperative to prioritize the privacy of stakeholders to foster trust and establish a positive reputation with service providers. To address this issue, this study recommends a decentralized approach by implementing a blockchain-based mutual authentication model. This model integrates QR codes to conceal Personally Identifiable Information (PII) and facilitate mutual authentication. Additionally, the blockchain serves as an immutable reference point for validation which helps proposed model to achieve 100% accuracy in average 11s of authentication time taken, stable and reliable.