Life of a Sigstore Signature - Jed Salazar & Zack Newman, Chainguard
Channel: CNCF [Cloud Native Computing Foundation]
Date: 28/10/2022

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Life of a Sigstore Signature - Jed Salazar & Zack Newman, Chainguard

Recently, Kubernetes SIG-release announced that the official Kubernetes container images have adopted Sigstore code signing to protect the supply chain of millions of downstream users. Sigstore, an open-source project aiming to be the LetsEncrypt of code signing, allows Kubernetes users to validate that their images came from the simple, free, and trusted official supply chain. But how does Sigstore actually work? What happens behind the scenes when I sign an image? Why should you even trust it? This talk follows the life of a Sigstore signature for your container image. On this journey, you’ll encounter keyless code signing, certificate authorities, and transparency logs. You’ll also configure an admission controller to create a signing security policy for your clusters.Our request hits every Sigstore component and you’ll stop to learn how they work, from the cryptographic and architectural levels, and discover how Sigstore mitigates supply chain attacks.