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Sigstore

Making sure your software is what it claims to be.

Sigstore is an open source project for improving software supply chain security. The Sigstore framework and tooling empowers software developers and consumers to securely sign and verify software artifacts such as release files, container images, binaries, software bills of materials (SBOMs), and more. Signatures are generated with ephemeral signing keys so there’s no need to manage keys. Signing events are recorded in a tamper-resistant public log so software developers can audit signing events.

Sigstore was started to improve supply chain technology for anyone using open source projects. It’s for open source maintainers, by open source maintainers. And it’s a direct response to today’s challenges, a work in progress for a future where the integrity of what we build and use is up to standard.

The Sigstore community develops and maintains tools to simplify code signing and verification, and also operates a public-good, non-profit service to improve the open source software supply chain. We’ve automated how you digitally sign and check components, for a safer chain of custody tracing software back to the source. We want to remove the effort, time and risk of error this usually comes with.

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