ToID: Reputation Based on Decentralized Identifiers for Distributed Applications

• Antonio M. de Sousa UFBA
• Allan E. S. Freitas IFBA
• Leobino N. Sampaio UFBA

DOI: https://doi.org/10.5753/sbseg.2024.241757

Abstract

Reputation systems become an important trust mechanism as the Internet becomes even more decentralized. However, current reputation systems are built on centralized management infrastructures that directly impact privacy and the very decentralization of the network. On the other hand, decentralized reputation models ensure greater scalability and elasticity of applications but sacrifice privacy in favor of participant authenticity. In this work, Trust over IDentity is proposed, aiming to provide a reputation infrastructure based on the decentralized digital identity paradigm to ensure trust without compromising the privacy and authenticity of both service providers and consumers. The proposal was implemented and evaluated through emulations that confirmed its potential in maintaining the integrity of reputation and the possibility of expansion to other application scenarios through the use of smart contracts.

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