Build Integrity & Cryptographic Trust

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Sigstore Cosign
Scored
Open Source Security Foundation (OpenSSF) · Open Source · 4 capabilities in this domain · 4.18 / 5
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AWS Signer
Capabilities only
Amazon Web Services · Commercial · 3 capabilities in this domain
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Chainguard Factory
Capabilities only
Chainguard · Commercial · 3 capabilities in this domain
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Notation (Notary Project)
Capabilities only
Cloud Native Computing Foundation (CNCF) · Open Source · 3 capabilities in this domain
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Tekton Chains
Capabilities only
Continuous Delivery Foundation · Open Source · 3 capabilities in this domain
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Witness
Capabilities only
Cloud Native Computing Foundation (CNCF) · Open Source · 3 capabilities in this domain
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Azure Trusted Signing
Capabilities only
Microsoft · Commercial · 2 capabilities in this domain
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Bazel
Capabilities only
Google · Open Source · 2 capabilities in this domain
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CyberArk Code Sign Manager
Capabilities only
CyberArk · Commercial · 2 capabilities in this domain
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Keyfactor Signum
Capabilities only
Keyfactor · Commercial · 2 capabilities in this domain
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SLSA GitHub Generator
Capabilities only
Open Source Security Foundation (OpenSSF) · Open Source · 2 capabilities in this domain
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Sigstore Fulcio
Capabilities only
Open Source Security Foundation (OpenSSF) · Open Source · 2 capabilities in this domain
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Sigstore Rekor
Capabilities only
Open Source Security Foundation (OpenSSF) · Open Source · 2 capabilities in this domain
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diffoscope
Capabilities only
Reproducible Builds Project · Open Source · 2 capabilities in this domain
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in-toto
Capabilities only
Cloud Native Computing Foundation (CNCF) · Open Source · 2 capabilities in this domain
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melange
Capabilities only
Chainguard · Open Source · 2 capabilities in this domain
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slsa-verifier
Capabilities only
Open Source Security Foundation (OpenSSF) · Open Source · 2 capabilities in this domain
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Archivista
Capabilities only
Cloud Native Computing Foundation (CNCF) · Open Source · 1 capabilities in this domain
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Kosli
Capabilities only
Kosli · Freemium · 1 capabilities in this domain
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In Build Integrity & Cryptographic Trust

diffoscope

Reproducible Builds Project · Build Integrity & Cryptographic Trust

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Open SourceCommunity

diffoscope is the Reproducible Builds project's tool for diagnosing non-determinism and verifying independent rebuilds.

Repository ↗

What it does2 capabilities · 1 at full coverage

1 of 2 at full coverage.

Binary-to-Source VerificationPartialBUILD · level 5 · 2 providers
Reproducible Build VerificationFullBUILD · level 5 · 5 providers

What it proves5 controls across 3 frameworks

Satisfied through its capabilities, not claimed by the vendor.

S2C2F2 / 25AUD-1 REB-1
SLSA 1.22 / 16Build L2 — Consumer validates provenance Build L2 — Signed provenance
CSF 2.01 / 106ID.RA-09

What it stops5 techniques · 1 risk

5 techniques countered, 0 of them common

Build System ImplantRare
Long-Con Maintainer Social EngineeringRare
SLSA threat D: Build from modified source or parametersSLSA-D
SLSA threat DEP: Dependency threat (A–H applied recursively)SLSA-DEP
SLSA threat E: Compromised build processSLSA-E

1 risks reduced

Released artifact does not match reviewed sourceCritical

Where it runs2 phases · 1 way to deploy

Capabilities per lifecycle phase

Build1
Release2

How it is delivered

CLI tool

What it unlocks1 activity · reaches level 5

Program activities its capabilities support, reaching level 5. Supporting an activity is not completing it.

Level 5

HermeticHigh effort

How it holds up

Not assessed yet: no strengths, limits or evaluation scores. 47 of 340 products carry an assessment and 29 are scored.

What it costsOpen source (free) · free tier

LicensingOpen source (free)

Priced pernone

BillingFree

Scales withOperating effort only

Total cost

No license cost, but self-support, upgrades, scaling and integration effort must be budgeted as personnel cost.

What it takes to run

No staffing, rollout time or operational commitment recorded.

What it works with

No supported language, standard, integration or named feature recorded.

What else to look at

No alternative, competitor or family sibling is modeled for it.

What backs this up

No measurement, incident or pipeline using it.

Gantry 7.1.0 · OFF.12 · OFF.13