This is the documentation of Software Transparency as a Service-STaaS platform. You can use STaaS for free here. You can access the source code of STaaS platform at GitHub.


STaaS platform is a free, open-source platform for signing artifacts. Signatures are generated using an one-time signing key. The corresponding public key is included in a short-lived certificate. This certificate also includes the identity of the user in the STaaS platform. User authentication in STaaS platform is implemented using OpenID Connect. Signatures are recorded in a public, auditable registry.

Technology stack

Short-lived certificates are generated using a private instance of Fulcio CA. Signatures are recorded in the public instance of Rekor. STaaS generates a signature bundle that can be verified using Cosign.