VC-Vault: A User-Friendly, Secure, Privacy-Enhancing Verifiable Credentials Wallet

¹ Mobile Multimedia Laboratory, Department of Informatics, School of Information Sciences and Technology, Athens University of Economics and Business, Greece
² School of Data Science, The Chinese University of Hong Kong-Shenzhen, China
³ ExcID P.C., Athens, Greece
*Corresponding author. Email: dnassar@aueb.gr (C.D.N.K.)
Manuscript received January 28, 2024; accepted February 23, 2024; published March 22, 2024

Abstract—The shift from centralized identity systems to decentralized alternatives is becoming more imminent. Users are increasingly encouraged to embrace the principles of Self-Sovereign Identity (SSI), relying on two key components, Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs), to regain total ownership and control over their identity and data, as well as how and to whom they are shared. This emphasizes a pressing need for VC wallet solutions that are not only user-friendly, but also uncompromisingly secure. In this paper, we introduce VC-Vault, an innovative wallet application that incorporates the principles of SSI and conforms to the European Blockchain Services Infrastructure (EBSI) standards. VC-Vault operates across both desktop and mobile platforms, delivering a coherent and effortless user experience. By establishing seamless integration with EBSI services, SSI principles, and VCs, VC-Vault places the control of digital identity and credentials firmly in the discretion of users.

Keywords—Decentralized Identifiers (DIDs), privacy, security, Self-Sovereign Identity (SSI)

Cite: Chalima Dimitra Nassar Kyriakidou and George C. Polyzos, "VC-Vault: A User-Friendly, Secure, Privacy-Enhancing Verifiable Credentials Wallet," International Journal of Blockchain Technologies and Applications vol. 2, no. 1, pp. 16–24, 2024.

Copyright © 2024 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).