# Siberia: A Self-Sovereign Identity and Multi-Factor Authentication Framework for Industrial Access
## 1 Introduction
### Self-Sovereign Identities
#### 1.1.1 Related Work on SSI
Sovrin's architecture supports a wide range of use cases, from verifying academic credentials and professional qualifications to enabling secure access to services and compliance with regulatory requirements. Organizations can issue VCs that users store in their digital wallets and present when needed. * LifeID [18] is an SSI platform with zero-knowledge proof technology to enable users to only present the needed information without revealing other attributes. In addition, LifeID provides an app with biometric authentication to protect against identity theft. Finally, users can recover their identity through backup, with close family/friends, and with a trusted organization. * Evenym [19] is a company that provides SSI technology, developing the Sovrin Network and empowering individuals and organizations to manage digital identities securely and privately. One of Evenym's flagship products is Verity, a comprehensive platform for building and deploying SSI solutions. Verity provides tools for creating and managing digital credentials and facilitating secure interactions among issuers, holders, and verifiers. * Hyperledger Indy [20] is a distributed ledger purpose-built for decentralized identity management, providing the tools and libraries necessary for creating and using independent SSI. Developed under the Hyperledger umbrella, which is hosted by the Linux Foundation, Indy aims to enable identity owners to control their own identity and verifiable claims. Indy enables zero-knowledge proofs and selective disclosure, which means users can prove certain attributes about themselves without revealing their full identity or other personal information. Indy also supports interoperability and adherence to global identity standards. It is designed to work seamlessly with other decentralized identity solutions and technologies, promoting a cohesive and unified approach to digital identity management. The platform is compatible with the W3C standards for DIDs and VCs. * EverID [21] aims to solve issues related to identity verification with blockchain technology. The platform supports biometric data such as fingerprints, facial recognition,and iris scans. EverID is a user-friendly identity account system for managing crypto assets on the everPay network. It simplifies the process for traditional industry users to create and handle non-custodial accounts, thus easing their transition into the Web3 environment. EverID provides two main types of account management. The first is through wallet addresses, which aligns with the standard method employed by most blockchain projects. The second type uses the FIDO authentication system, enabling account creation via email addresses, biometrics, and other secure methods. This approach significantly reduces the barrier for users, making it easier and more accessible to manage Web3 crypto assets. The described commercial solutions reflect the increasing maturity and adoption of SSI technologies across sectors such as public transportation, IoT, and healthcare. However, most remain either conceptual or limited to narrow domains, with little attention paid to the stringent requirements of industrial environments. Specifically, aspects such as CA, biometric privacy, or real-time credential verification in constrained Operational Technology (OT) networks are poorly addressed. This gap highlights the novelty of SIBERIA, which applies SSI principles to high-security industrial contexts and complements them with adaptive, privacy-preserving multi-factor authentication.