Digital identity

Digital identity can be defined as an electronic representation of a real-life entity, such as a human, machine, device, or organization. A digital identity can be represented by a citizen identification number, employee ID, host name, and in many other forms.

In other words, a digital identity is information that identifies an individual or entity in the digital world, e.g., on the internet.

Identity management can be defined as the process of creating, updating, deleting, and storing digital identity accounts and managing access to resources through the process of authentication and authorization.

There are several models of digital identity, including centralized, federated, and decentralized identity models. We’ll explore these models next.

Centralized identity model

The centralized identity model is what we are most familiar with. It is the most widely used model with identifiers and credentials issued by centralized service providers...