A multi-layer trust framework for Self Sovereign Identity on blockchain

• DOI: 10.1016/j.osnem.2023.100265
• Publication Date: 2023-08-16T03:02:40Z
• Authors: Andrea De Salve; Damiano Di France...; Paolo Mori; Laura Ricci; Alessandro Puccia
• Keywords: 0301 basic medicine; Web of Trust; 0303 health sciences; Trust Management System, Self Sovereign Identity, Distributed Ledger Technology, Web of Trust; Trust Management Systems; Self Sovereign Identity; Distributed Ledger Technology

The recent interest for decentralised systems and decentralisation of the control over users' data brings a shift in way identities their information are managed. Self Sovereign Identity (SSI) has been proposed as next generation paradigm identity management. Research on SSI is getting more traction, focusing mainly management identifiers providing standard to express verify credentials. Instead, this paper focuses understanding role trust it provides new insight into relationships existing between different actors. Indeed, analysis such roles actors reveals that current suffers from issues verifier issuer verifiable credential. In order cope problem, proposes multi-layer framework exploits defined by standards (verifiers issuers credentials). An implementation through Solidity smart contracts deployed both private public blockchain networks assess its capabilities. addition, dataset related spread spam reviews exploited test benefits performance framework, demonstrating able improve reliability real-world scenario.