devops
Image Signing
Container Image Signing
Definition
Image signing cryptographically attests that a container image was produced by a trusted source and has not been tampered with since it was signed. Signed images create a verifiable chain of custody from build pipeline to production deployment.
Admission controllers can enforce that only signed images from approved signers are deployed to Kubernetes clusters.
Can this ship? Are we exposed? Can you prove it?
Every CISO is asking these three questions. We answer them with facts, not guesses, from repository to runtime.