Most government and public agencies are looking to scale their citizen services. With AI in the mix, these services are also open to new kinds of risks. That's where Zero-Trust identity, encryption, and network isolation become critical for multi-tenant gov clouds. We look at how these can be embedded across different use cases of citizen service offerings.
From digital ID systems to tax portals, modern citizen services are built on distributed infrastructure and multi-tenant environments. Post-COVID, the demand for these services ballooned.
Now, these platforms are accessed by millions of users, operated across jurisdictions, and tied to other similar platforms run by the government.
Canada for instance, has grown its cloud services funding allocation from $9.5M in 2018-19 to $29.3M in 2025-26.
And while this cloud-first approach creates tremendous opportunity for public sector programs, it also introduces novel risks around identity and access.
Zero-Trust architecture helps reduce that risk. But implementing it at the infrastructure level, where authentication, encryption, and segmentation must work together, is where most deployments fall short.
In short, the challenge lies in operationalizing the Zero-Trust framework.
We’ll be exploring how to build a foundation of Zero-Trust into your architecture, and how it plays out in real public-sector use cases.
Identity: Federated, Scoped, Continuous
At the core of any Zero-Trust design is identity.
You’re verifying not only users, but services, APIs, and control plane operations. Atmosphere leverages OpenStack Keystone for this, integrated with Keycloak in its Hosted and On-Premise editions. This setup allows external identity providers (e.g., government IdPs) to federate authentication via SAML or OpenID Connect, enabling single sign-on and central policy control.
Each token issued is project-scoped and time-limited (e.g., via Fernet), enforcing the principle of least privilege. RBAC policies are mapped directly to service permissions like separating read/write API access, metadata queries, and image provisioning down to fine-grained roles.
Hypothetical Use Case #1
Strengthening a National e-Services Platform (Tax, Benefits, and ID Verification)
Your public agency is looking to deploy a central cloud platform to support citizen-facing applications such as tax filings and benefit disbursements. You want to ensure that each department retains its own identity provider.
