Sigstore / Cosign

Source: content/manual/06-glossary/supplychain/sigstore.md

Definition

Sigstore is a set of tools and services for keyless signing and verifying software artifacts; Cosign is the container image signing/verification CLI.

Why it matters

Enables provenance and tamper detection for OCI images and other artifacts.

Common pitfalls

  • Signing without enforcing verification in admission.
  • Lost track of signatures/attestations across registries.

References