Authorization is one of the most important considerations for cloud-native applications, as highlighted by the OWASP Top 10. For a long time, there was no clear standard, making authorization a significant challenge for many implementers. The OpenID Foundation AuthZEN WG is now working on standards, focusing on interfaces between PEP (Policy Enforcement Point) and PDP (Policy Decision Point), which provides some hope.
However, managing authorization data remains challenging. Since this data is closely related to authentication data, architects often struggle with how the OP (OpenID Provider) and PDP should manage and integrate it. There are multiple methods, and the best approach varies by use case.
In this session, Yoshiyuki Tabata will explain various methods for managing and integrating authentication and authorization data. He will also describe implementation using Keycloak for OP and Topaz for PDP, providing valuable insights into effective data management.