domains / families / security / implementing-image-provenance-verification-with-cosign

implementing-image-provenance-verification-with-cosign

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Signs and verifies container image provenance with Sigstore Cosign, covering key-based and keyless OIDC signing (Fulcio, Rekor transparency log), SLSA attestations, and enforcing signature verification through Kubernetes admission control. Use when signing images for supply chain security, setting up keyless OIDC signing, attaching attestations, or enforcing a verified-images-only policy at admission. Keywords: Cosign, Sigstore, Fulcio, Rekor, keyless, attestation, cosign verify, admission policy. Do not use for in-toto layout-based pipeline attestation - use implementing-supply-chain-security-with-in-toto.

When to use

• When deploying or configuring implementing image provenance verification with cosign capabilities in your environment
• When establishing security controls aligned to compliance requirements
• When building or improving security architecture for this domain
• When conducting security assessments that require this implementation

When not to use

• in-toto layout-based pipeline attestation

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