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Artifact Signing with Sigstore and Cosign | Codelivly
[>_] ROOM · Cybersecurity
Artifact Signing with Sigstore
Master cryptographic artifact signing using Sigstore and Cosign. Learn to implement keyless signing, verify provenance, and secure the software supply chain.
Room tasks
1What Is Artifact Signing and Why Does It Matter
2Keyless Signing, Fulcio and Rekor
3Signing Container Images with Cosign
4Verifying Signatures Before Deployment
5Guided Lab: Signing and Verifying a Container Image
Frequently Asked Questions
What is Sigstore?
Sigstore is an open-source project that makes signing and verifying software easy. It combines Cosign for signing, Fulcio for short-lived certificates and Rekor, a transparency log, so teams can sign artifacts without managing long-lived keys.
What is keyless signing?
Keyless signing replaces long-lived private keys with short-lived certificates tied to an identity, such as an OIDC login from a CI job. The signature and identity are recorded in a transparency log for later verification.
How do I sign a container image with Cosign?
You authenticate, run the Cosign sign command against the image digest, then verify it before deployment. The Sigstore room on Codelivly is free and walks you through signing and enforcing verification step by step.