A Novel Blockchain-based Trust Model for Cloud Identity Management

TL;DR

This paper introduces a blockchain-based trust model to enhance security, privacy, and trust management in cloud identity systems, addressing issues of complexity and security in federated identity management.

Contribution

It proposes a novel blockchain-based trust and identity management model to improve security and privacy in cloud federated identity systems.

Findings

Enhanced security and privacy in cloud identity management.

Reduced complexity in trust relationships.

Improved trustworthiness of federated identities.

Abstract

Secure and reliable management of identities has become one of the greatest challenges facing cloud computing today, mainly due to the huge number of new cloud-based applications generated by this model, which means more user accounts, passwords, and personal information to provision, monitor, and secure. Currently, identity federation is the most useful solution to overcome the aforementioned issues and simplify the user experience by allowing efficient authentication mechanisms and use of identity information from data distributed across multiple domains. However, this approach creates considerable complexity in managing trust relationships for both the cloud service providers and their clients. Poor management of trust in federated identity management systems brings with it many security, privacy and interoperability issues, which contributes to the reluctance of organizations to move their critical identity data to the cloud. In this paper, we aim to address these issues by introducing a novel trust and identity management model based on the Blockchain for cloud identity management with security and privacy improvements.