What is Sigstore?

Sigstore is an open-source framework for signing, verifying, and auditing software artifacts so organizations can prove where software came from and whether it changed.

For teams asking What is Sigstore, the practical answer is that it makes software integrity easier to verify at build, release, and consumption time. It supports artifacts such as container images, binaries, release files, software bills of materials, and build attestations.

How does it work?

Sigstore uses identity-based signing instead of depending only on long-lived private keys. A signer authenticates through an identity provider, a short-lived certificate is issued, the artifact is signed, and the signing event is recorded in a transparency log.

Consumers then verify the artifact against the signature, signer identity, certificate details, and log entry. This helps teams detect unsigned, altered, or unexpected software before it enters production.

Sigstore vs traditional code signing

Traditional code signing often relies on long-lived private keys that must be generated, stored, rotated, and protected. Sigstore reduces that operational burden by linking signatures to verified identities and short-lived certificates.

It does not remove the need for secure CI/CD, access control, review, or build hardening. Instead, it gives teams stronger evidence that an artifact matches the expected signer, source, and release process.

How Hexnode supports Sigstore

Hexnode supports Sigstore adoption by strengthening the endpoint and runtime side of software supply chain security. While Sigstore helps prove artifact integrity, Hexnode UEM can help teams maintain endpoint visibility, enforce application controls, run compliance checks, manage patch workflows, and take remote actions across managed devices.

This matters because signed software still needs controlled deployment. Hexnode helps organizations compare approved software expectations with what is actually installed, reduce exposure to unauthorized applications, and keep endpoints aligned with security policy.

When should organizations use it?

Organizations should use Sigstore when they build, publish, or consume software artifacts through automated pipelines. It is especially useful for containerized workloads, internal developer platforms, open-source dependency workflows, regulated environments, and teams adopting SBOMs or provenance attestations.

Start with high-risk release paths, such as production images, internal tools, and packages used across many systems. Verification should be enforced where software enters registries, deployment pipelines, or production environments.