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Red Hat Trusted Artifact Signer

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Spec score 7.5 #18 of 28 in Code Signing Software

What it is

Red Hat Trusted Artifact Signer (RHTAS) helps organizations sign and verify software artifacts, including container images, binaries, documents, source-code commits, software bills of materials, build artifacts, and AI/ML models. Red Hat describes it as an enterprise deployment of Sigstore. Its client tools include cosign, gitsign, and rekor-cli. Signing can use OpenID Connect identities or self-managed keys held in a third-party key management system. A certificate transparency log records signing events in an immutable ledger that Red Hat says is inaccessible to the public. Deployment guidance covers Red Hat OpenShift Container Platform and Red Hat Enterprise Linux; Amazon EKS is listed as a development preview for RHTAS 1.4. The OpenShift guide requires version 4.16 or later, cluster-admin access, an OIDC provider, and the oc command-line tool. CLI binaries are listed for Windows, macOS, and Linux. Pricing is on request, and a 60-day trial is listed. Signing and verifying AI/ML models with the CLI is marked Technology Preview and is not covered by production SLAs.

Spec sheet

Purpose
RHTAS simplifies cryptographic signing and verification of software artifacts, including container images, binaries, and Git commits.Read 30 Sep 2026 · access.redhat.com
Integrations
Red Hat lists Podman, Quay, Ansible, Red Hat Advanced Cluster Security, StoneSoup/HACBS, and Red Hat Trusted Content among products adopting or integrating Sigstore.Read 30 Sep 2026 · developers.redhat.com
Headquarters
Raleigh, North Carolina, USARead 28 Sep 2026 · access.redhat.com
Founded
1993Read 28 Sep 2026 · access.redhat.com
Maker
Red Hat says it was founded in 1993 and lists its address at 100 E. Davie Street, Raleigh, NC 27601.Read 30 Sep 2026 · redhat.com
Deployment platforms
The deployment guide covers Red Hat OpenShift Container Platform and Red Hat Enterprise Linux; supported-platform information also lists Amazon EKS as a development preview for RHTAS 1.4.Read 30 Sep 2026 · access.redhat.com
Deployment prerequisite
The OpenShift deployment guide requires OpenShift Container Platform 4.16 or later, cluster-admin access, an OIDC provider, and the oc command-line tool.Read 30 Sep 2026 · docs.redhat.com
Downloads
Red Hat's download page lists CLI binaries for Windows, macOS, and Linux.Read 30 Sep 2026 · developers.redhat.com
Identity and keys
RHTAS supports identity-based signing through OpenID Connect and can use existing self-managed keys maintained in a third-party key management system.Read 30 Sep 2026 · developers.redhat.com
Lifecycle
Red Hat describes full support and maintenance support phases and says a release reaches end of life after its maintenance phase.Read 30 Sep 2026 · access.redhat.com
OIDC providers
The deployment guide describes configuring Red Hat SSO, Google, Amazon STS, GitHub, Red Hat build of Keycloak, and Microsoft Entra ID as OIDC providers.Read 30 Sep 2026 · docs.redhat.com
Production support
Red Hat states that support for RHTAS is subject to its Production Scope of Coverage, Service Level Agreement, and product life cycle, and includes help with setup, administration, deployment, and configuration.Read 30 Sep 2026 · access.redhat.com
Signing clients
Its Sigstore client tools include cosign, gitsign, and rekor-cli for generating and verifying signatures.Read 30 Sep 2026 · developers.redhat.com
Sigstore
Red Hat describes Trusted Artifact Signer as a production-ready enterprise deployment of the Sigstore project.Read 30 Sep 2026 · developers.redhat.com
SLSA
Red Hat says RHTAS can help enterprises meet signing-related criteria for Supply-chain Levels for Software Artifacts (SLSA) compliance.Read 30 Sep 2026 · developers.redhat.com
Technology preview limitation
The administration guide marks signing and verifying AI/ML models with the CLI as Technology Preview and says Technology Preview features are not supported by production SLAs.Read 30 Sep 2026 · docs.redhat.com
Transparency log
The certificate transparency log records signing events in a permanent, immutable ledger that the page says is inaccessible to the public.Read 30 Sep 2026 · developers.redhat.com

Plans and prices

Red Hat Trusted Artifact Signer Priced on request Pricing not stated on the product pages opened; contact Red Hat for sales information Read 30 Sep 2026 · access.redhat.com

Every Red Hat Trusted Artifact Signer plan and price →

Strong points and limits

Strong points

  • Supports multiple artifact types, including binaries and commits.
  • Offers OpenID Connect identity-based signing.
  • CLI binaries are listed for Windows, macOS, and Linux.
  • A 60-day trial is listed.

Limits

  • Pricing is available on request.
  • OpenShift deployment requires version 4.16 or later and cluster-admin access.
  • AI/ML CLI signing is Technology Preview, without production SLA support.

Who it suits

RHTAS suits enterprises that need signing and verification for software artifacts and can meet its deployment prerequisites. Teams signing AI/ML models with the CLI should account for its Technology Preview status and lack of production SLA support.

Verdict

RHTAS brings Sigstore signing and verification into an enterprise deployment, with identity-based signing and several deployment requirements. Pricing is on request; AI/ML model signing with the CLI remains outside production SLA support.

Where Specifiction places it

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