Dogtag PKI is an open-source certificate authority (CA) for organisations that want to issue and manage their own certificates. It supports the whole lifecycle: issuing, revoking and retrieving certificates, certificate revocation lists (CRL), certificate profiles and SCEP. It also offers key archival and recovery, OCSP, and management of smartcards and tokens. It is a collection of components that you install yourself; the project site points to documentation, mailing lists and chat channels for users and developers.
According to the project's GitHub wiki, Dogtag is maintained by Red Hat for the Fedora project, together with community contributors. Red Hat is based in Raleigh, United States. The software is released under the GPL-2.0 licence and its source code was still being changed in October 2026. Because you run Dogtag on your own servers, your keys, certificates and data stay in your own environment; no hosted service from the developers is needed.