Skill UI

This skill guides implementing robust code signing for software artifacts (binaries, packages, containers). It ensures integrity and authenticity throughout the entire software supply chain. Learn to use traditional methods like GPG and modern, keyless approaches like Sigstore (cosign) to establish trust chains, verify provenance, and meet compliance standards (e.g., SLSA).

This guide details implementing robust container image provenance verification using Cosign, a Sigstore tool. It covers key-based and keyless (OIDC) signing methods, enabling secure supply chain practices. Users can sign images, attach critical attestations (such as SBOMs and vulnerability scans), and enforce verification in CI/CD pipelines and Kubernetes environments to ensure high integrity and trust.