ZTIMM - A Zero-Trust-Based Identity Management Model for Volunteer Cloud Computing.

The availability of efficient, affordable, green computing alternatives for emerging paradigms, such as edge, mobile, and volunteer cloud computing, is growing. But these models are plagued by security issues, such as in volunteer cloud computing, where trust among entities is nonexistent. This paper presents a zero-trust model that assumes no trust for any volunteer node and always verifies using a server-client model. This paper proposes an adaptive behavior evaluation model that estimates each VN’s trust score. Therefore, tasks are assigned to the most trusted VN in the system. A series of trust-aware mechanisms to handle VN’s life cycle is also presented.