Sigstore
Noun · Security & Infosec
Definitions
An open-source project providing free, automatic code signing and verification for software artifacts. Uses keyless signing (tied to OIDC identity), a transparency log (Rekor), and a certificate authority (Fulcio). Eliminates the complexity of managing PGP keys. npm, PyPI, and Kubernetes all use Sigstore for package signing.
In plain English: A free, easy system for digitally signing software so users can verify it hasn't been tampered with.
Example: "cosign sign the container image with Sigstore — consumers can verify it came from our CI pipeline without managing GPG keys."