OAuth 2.0

An authorization framework for delegating access to resources without sharing credentials.

Description

OAuth 2.0 is an authorization framework that enables third-party applications to obtain limited access to user accounts on an HTTP service. In the context of Non-Human Identity Management, OAuth 2.0 facilitates secure access for automated processes, such as microservices, applications, or devices that do not have a human user directly interacting with them. This is particularly relevant for Internet of Things (IoT) devices, where a device may need to access APIs and services without user intervention. OAuth 2.0 allows these non-human entities to authenticate and receive tokens that grant them permission to perform actions or access data on behalf of a user or service. The framework supports various grant types that are suited for different scenarios, including client credentials, which is specifically designed for server-to-server communication where no user is involved. By using OAuth 2.0, organizations can ensure that only authorized applications and devices have access to sensitive resources, enhancing security and enabling automated workflows.

Examples

  • A cloud application using OAuth 2.0 to allow a monitoring service to access user data securely.
  • An IoT device that retrieves data from a cloud API using OAuth 2.0 client credentials flow.

Additional Information

  • OAuth 2.0 is widely adopted and supported by major service providers like Google, Microsoft, and Facebook.
  • It provides various flow types to cater to different use cases, enhancing flexibility in identity management.

References