SEATTLE–(BUSINESS WIRE)–Aserto the authorization-as-a-service platform and creators of Open Policy Registry (OPCR), a docker-inspired workflow for Open Policy Agent (OPA) policies, today announces a new open-source project: Topaz. Topaz is a cloud-native authorization service, providing fine-grained, policy-based, real-time access control for applications and APIs. Topaz is built on top of the CNCF OPA decision engine and supports the Google Zanzibar (ReBAC) authorization model in a first-cla