A Novel Blockchain-based Trust Model for Cloud Identity Management
This addresses trust management challenges for cloud service providers and clients, but it is incremental as it builds on existing blockchain and identity federation concepts.
The paper tackles the problem of managing trust relationships in federated identity management for cloud computing, which causes security, privacy, and interoperability issues, by introducing a blockchain-based trust model that improves security and privacy.
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.