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| 1 | ++++ |
| 2 | +author = "Jason Smith" |
| 3 | +title = "🔐 What Makes Signing SBOMs Hard in Practice?" |
| 4 | +date = "2025-05-18" |
| 5 | +linkedin = "https://www.linkedin.com/posts/j28smith_sbom-supplychainsecurity-softwaresecurity-activity-7333912094414618624-AB-Y" |
| 6 | +image = "img/thirdparty/2025-05-18-hidden-complexity-sbom-signing.jpeg" |
| 7 | ++++ |
| 8 | + |
| 9 | +Everyone agrees SBOMs should be signed. |
| 10 | + |
| 11 | +But actually doing it? That's where things get messy. |
| 12 | + |
| 13 | +Let's talk about why. |
| 14 | + |
| 15 | +🔑 Key Management Is Not Fun |
| 16 | + |
| 17 | +Where do the keys live? Are they stored in software or secured in hardware (HSMs)? Who manages them and who has access? How are they rotated? Is there proper auditability? |
| 18 | + |
| 19 | +⚖️ Trust Models Are Inconsistent |
| 20 | + |
| 21 | +Are you using your internal CA? A third-party like Sigstore? Something else? What do consumers actually trust? |
| 22 | + |
| 23 | +🔄 CI/CD Integration Isn't Always Straightforward |
| 24 | + |
| 25 | +You need to sign automatically as part of your pipeline, but build tools, permissions, and environments vary wildly. |
| 26 | + |
| 27 | +👤 Identity Binding Matters |
| 28 | + |
| 29 | +It's not just that something was signed, but who signed it? And verifying that identity isn't always easy. |
| 30 | + |
| 31 | +🏢 Enterprises Want Control |
| 32 | + |
| 33 | +Many larger organizations hesitate to use public, community-run signing services. They want auditability, offline modes, and policy enforcement. |
| 34 | + |
| 35 | +Signing is essential for SBOM integrity but we need to make it realistically adoptable. |
| 36 | + |
| 37 | +There's no one-size-fits-all approach here - and that's okay. |
| 38 | + |
| 39 | +Would love to hear how others are tackling SBOM signing today. What's worked for you? What hasn't? Are we even there yet? |
| 40 | + |
| 41 | +💬👇 Drop a comment or DM me. Always happy to chat. |
| 42 | + |
| 43 | +#SBOM #SupplyChainSecurity #SoftwareSecurity #DigitalSignatures #PKI #DevSecOps #OpenSourceSecurity #SBOMSigning #CyberSecurity |
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