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signing

Safeguard articles tagged "signing" — guides, analysis, and best practices for software supply chain and application security.

25 articles

Tools

Cosign v2.6: New Bundle Format and Trusted Root

Sigstore's Cosign v2.6 unlocks offline verification, in-toto statement signing, and trusted-root portability. We walk through the new --new-bundle-format flag end-to-end.

Jul 4, 20265 min read
DevSecOps

How to Test Your Signing Pipeline End to End

Build a repeatable end-to-end test harness for your signing pipeline that proves artifacts are signed correctly and that verification fails when tampered.

Apr 15, 20266 min read
Cloud Security

Azure Key Vault Managed HSM for Artifact Signing: Pattern Library

Managed HSM gives you FIPS 140-3 Level 3 key custody in Azure. We map the patterns for using it as the root of trust for code signing, container signing, and SBOM attestation.

Apr 4, 20267 min read
Software Supply Chain Security

Provenance, Attestation, and Signing: A Practical Glossary

Provenance describes how software was built, attestations are signed claims about that process, and signing proves origin. Here's how the pieces fit.

Apr 2, 20268 min read
DevSecOps

Azure Artifacts Sigstore Integration Walkthrough 2026

A practical walkthrough for integrating Sigstore signing and verification with Azure Artifacts in 2026, including the gaps you should know about before starting.

Mar 26, 20265 min read
Open Source Security

NuGet Signed Packages Verification

NuGet supports signed packages — author signatures, repository signatures, and verification modes. A practical guide to enforcing it properly.

Mar 16, 20265 min read
DevSecOps

How to Rotate Build Signing Keys Safely

A step-by-step tutorial for rotating Cosign and GPG build signing keys without breaking existing attestations, verification chains, or downstream consumers.

Mar 12, 20266 min read
Open Source Security

RubyGems.org and Sigstore: Progress Check

An honest look at where RubyGems.org stands with Sigstore integration, what has shipped, what is still being debated, and how maintainers can prepare for signed gems.

Mar 10, 20267 min read
Best Practices

Post-Quantum Signing: An Artifact Migration Plan

A concrete migration plan for artifact signing from ECDSA to ML-DSA and SLH-DSA, covering Sigstore, Notary, HSMs, and staged hybrid rollouts.

Mar 5, 20265 min read
Industry Analysis

The Future of Software Signing Is Keyless

Long-lived signing keys are operational debt that every security team eventually pays down the hard way. Keyless signing is not an experiment anymore — it is the mainstream design.

Mar 5, 20268 min read
Container Security

Azure Container Registry Trust Model

What Azure Container Registry actually guarantees about the images you pull — signing, attestation, content trust, and where the trust chain breaks in practice.

Mar 5, 20267 min read
Container Security

AWS ECR Image Signing in Production

Image signing in ECR has moved from nice-to-have to table stakes. Here is what it actually takes to run cosign and AWS Signer in production without breaking every deploy.

Mar 4, 20267 min read

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signing — Safeguard Blog