In the realm of online security, ensuring secure and efficient user authentication and identification is crucial. In the digital landscape, preventing unauthorized access and identity theft is of utmost importance. To address these concerns, the eIDAS network, composed of eIDAS nodes in Member State countries, was established to implement the European Union (EU) Regulation 910/2014, which aims to connect electronic identity systems across EU countries. The primary objective of the eIDAS network is to provide a unified framework for electronic identification and trust services, guaranteeing the security, reliability, and legal validity of digital transactions across borders. When a user authenticates using a government issued electronic identity (eID) through the eIDAS network, certain core personal attributes such as name, surname, date of birth, and identifier are transmitted from the eIDAS nodes to service providers (SPs).