Files
Anthropic-Cybersecurity-Skills/skills/verifying-build-provenance-with-slsa-sigstore/references/api-reference.md
T
mukul975 8cae0648ec Add 55 new skills across 3 new domains + 6 undercovered areas (762 -> 817)
Demand-driven expansion targeting the fastest-growing 2025-2026 threat and
skills categories (ISC2/WEF/CrowdStrike/Mandiant signals):

- AI Security (NEW domain, 12 skills): LLM red-teaming with garak/PyRIT,
  prompt injection (direct/indirect/RAG), MCP tool-poisoning, agentic tool
  invocation, guardrails, model/data poisoning, system-prompt leakage,
  embedding/vector weaknesses, model extraction, continuous red-teaming
- Supply Chain Security (NEW domain, 5 skills): SBOMs, dependency confusion,
  malicious-npm triage, typosquatting, SLSA/Sigstore provenance
- Hardware & Firmware Security (NEW domain, 4 skills): CHIPSEC/UEFI audit,
  Secure Boot bypass, TPM measured-boot attestation, ESP bootkit hunting
- Identity (10): Entra ID/ROADtools, GraphRunner, AADInternals, ADCS/Certipy,
  shadow credentials, coercion, BloodHound CE, device-code phishing, SSO abuse
- Cloud-native (8): Stratus, Pacu, CloudFox, container escape, K8s RBAC,
  Falco, Trivy, kube-bench
- Offensive C2 (6): Sliver, Havoc, NetExec, DPAPI, NTLM relay ESC8, redirectors
- DFIR (6): Hayabusa, Chainsaw, KAPE, Velociraptor, EZ Tools, Plaso
- Backfill (4): OpenCTI, MISP, honeytokens, post-quantum crypto migration

Each skill follows the repo taxonomy (SKILL.md + references/{standards,api-reference}.md
+ scripts/agent.py + LICENSE), with researched real tool commands (no placeholders),
complete frontmatter, and ATT&CK/ATLAS + NIST CSF mappings. Updates README domain
table, skill count, and index.json.
2026-06-22 19:08:16 +02:00

2.4 KiB

cosign & slsa-verifier CLI Reference

Sources:

cosign — verification commands

Command Purpose
cosign verify <image> Verify image signature(s)
cosign verify-attestation <image> Verify in-toto attestation attached to image
cosign verify-blob <file> Verify a detached signature on a blob
cosign verify-blob-attestation <file> Verify an attestation bundle for a blob
cosign download attestation <image> Pull attestations for offline inspection
cosign tree <image> Show signatures/attestations attached to an image

cosign — key verification flags

Flag Meaning
--certificate-oidc-issuer <url> Required keyless: OIDC issuer that minted the cert
--certificate-identity <san> Exact certificate identity (workflow SAN)
--certificate-identity-regexp <re> Regex form of identity
--type <type> Predicate type: slsaprovenance, slsaprovenance02, slsaprovenance1, spdx, cyclonedx, vuln, custom
--bundle <file> Sigstore bundle for blob attestation
--new-bundle-format Use the new Sigstore bundle format
--key <path> Verify with a fixed public key (non-keyless)
--rekor-url <url> Transparency log (default https://rekor.sigstore.dev)

GitHub OIDC issuer (constant)

https://token.actions.githubusercontent.com

slsa-verifier

Command Purpose
slsa-verifier verify-artifact <artifact> Verify provenance for a binary/artifact
slsa-verifier verify-image <image> Verify provenance for a container image
slsa-verifier verify-npm-package <tarball> Verify npm package provenance

slsa-verifier flags

Flag Meaning
--provenance-path <file> Path to provenance (.intoto.jsonl / .sigstore)
--source-uri <repo> Expected source repository (GitHub URIs)
--source-tag <tag> Expected git tag
--source-versioned-tag <tag> Semver-aware tag match
--builder-id <ref> Pin the trusted builder workflow (SLSA L3)
--print-provenance Print the verified provenance to stdout

GitHub CLI native verification

Command Purpose
gh attestation verify <artifact> --repo <org>/<repo> Verify GitHub-generated build provenance