SLSA Provenance Hands-on: Generate with GitHub Actions, Verify with slsa-verifier
The article demonstrates how to generate and verify SLSA L3 provenance using GitHub Actions and the slsa-verifier tool. It explains the importance of provenance in securing software supply chains by ensuring builds originate from trusted sources and processes. The hands-on guide includes verifying a real-world release and setting up automated provenance generation for a Go project.
- ▪SLSA (Supply-chain Levels for Software Artifacts) is a framework that uses verifiable metadata to secure software supply chains.
- ▪Provenance, signed using DSSE and following the in-toto format, attests to an artifact's source, build process, and builder integrity.
- ▪GitHub Actions reusable workflows enable SLSA Level 3 compliance by isolating user code from the build and signing environment.
- ▪The slsa-github-generator tool automatically produces SLSA L3 provenance when a Git tag is pushed.
- ▪Tampering can be detected by verifying the provenance of a release using the slsa-verifier tool on a local machine.
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