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signing

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

25 articles

DevSecOps

Cosign Keyless Signing Workflows in 2026

How keyless signing has matured: OIDC identities, transparency log dependencies, attestation patterns, and the operational details teams still get wrong.

Feb 26, 20266 min read
Tools

Cosign v3.0 Migration Guide for Production Teams

Sigstore Cosign v3.0 flips four behaviours to defaults: bundle format, trusted root, signing config, and statement-based attestations. Here's a clean upgrade plan.

Feb 25, 20265 min read
Container Security

Multi-Arch Image Builds and Attestation Pitfalls

Why multi-architecture container images break assumptions baked into signing, SBOM, and attestation tooling, and how to build a multi-arch pipeline that stays verifiable.

Feb 22, 20268 min read
Open Source Security

PowerShell Module Supply Chain Security

PowerShell modules are a supply chain people forget exists, and the trust model is weaker than NuGet's. Here is why that matters.

Feb 21, 20267 min read
Open Source Security

NuGet Package Signing Status in 2026

NuGet package signing has quietly become one of the stricter supply chain stories in mainstream ecosystems. Here is what .NET teams actually need to know.

Feb 17, 20267 min read
Cloud Security

Azure ACR Image Signing with Notation Policy

Azure Container Registry plus Notation gives you signing, trust policy, and AKS enforcement without bolting on Sigstore. Here is how the pieces actually fit together.

Feb 10, 20267 min read
Container Security

Fargate/ECS Container Supply Chain Pitfalls

The parts of container supply chain that break differently on AWS Fargate and ECS compared to Kubernetes, and what to do about each one in production.

Feb 6, 20267 min read
Cloud Security

AWS ECR Signing Policies with Notation

ECR now supports Notation-based image signing and trust policy enforcement. Here is how to design signing policies that survive scale and auditors.

Feb 5, 20267 min read
Container Security

Sigstore Policy Controller for K8s in Production

How the Sigstore Policy Controller actually runs in production, what it does better than Kyverno, and the operational pitfalls nobody mentions in the quickstart.

Jan 30, 20267 min read
DevSecOps

Git Hooks as Supply Chain Controls in 2026

Server-side and client-side git hooks are an underused control surface for supply chain risk. Here is what to enforce, where to enforce it, and what to leave alone.

Jan 22, 20266 min read
Container Security

Cosign for Container Signing: A Production Setup

A working production setup for Cosign image signing across CI, registries, and Kubernetes admission, including the parts that break at scale and how to recover.

Jan 22, 20267 min read
DevSecOps

Build Artifact Integrity Verification: From Source to Deployment

If you cannot verify that your deployed artifact matches your reviewed source code, your entire code review process is security theater. Here is how to close that gap.

Jan 14, 20266 min read

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signing (Page 2) — Safeguard Blog