feat(crypto): add AWS-LC FIPS provider - #181
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Add explicit native provider selection, opaque private handles and provider-aware key inventory and CLI capability discovery. Keep RustCrypto as the default and reject unsupported native mechanisms without fallback. Cover primitive and XML/CLI interoperability, malformed inputs, tampering and provider binding; document native build and FIPS deployment boundaries. Closes #180
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Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThis change adds an optional AWS-LC FIPS provider alongside RustCrypto. It adds provider-aware key import and XMLDSig interfaces, routes xmlsec1 operations and capability queries through the selected provider, and adds provider tests, CI coverage, and documentation. ChangesOptional AWS-LC FIPS provider
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~50 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant xmlsec1
participant KeyInventory
participant CryptoProvider
xmlsec1->>KeyInventory: Request provider-aware key lookup
KeyInventory->>CryptoProvider: Import private key
xmlsec1->>CryptoProvider: Run selected crypto operation
Merge Risk: ⚪ Minimal · up to This update threads the selected crypto engine through CLI key import, signing, and decryption, with bounded key-container normalization and added cross-provider tests. No concrete defect remains open, so the change appears ready to merge after normal checks. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The inspected paths preserve explicit provider binding, policy checks, bounded key import, and rejection of unsupported operations. No material security regression was established. The new dependency and deployment-specific FIPS approval have not been independently validated in full. Retained concerns Security review detailsSecurity Blast Radius
Security Findings and Attack Paths
Trust Boundaries and Controls
Resilience and Maintainability Implications
Hardening Proposals
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 172 functions across 13 files. (1 skipped: 1 unsupported.)
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🧪 Generate unit tests (beta)
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Inline comments:
Review comments at @src/provider/aws_lc.rs:
- Around line 549-555: Check the RSA modulus in the AWS-LC verification path
before dispatching to `VerificationAlgorithm`, since verification failures are
otherwise treated as invalid signatures. For RSA keys outside AWS-LC’s
2048–8192-bit range, return the existing unsupported error; preserve invalid-key
errors for malformed key data. Document the accepted modulus range in the
crypto-provider documentation.
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📒 Files selected for processing (18)
.github/workflows/ci.ymlCargo.tomlREADME.mddocs/cli.mddocs/crypto-providers.mdsrc/key_manager.rssrc/provider.rssrc/provider/aws_lc.rssrc/xmldsig/keys.rssrc/xmldsig/parse.rssrc/xmldsig/sign.rssrc/xmldsig/trust.rssrc/xmldsig/verify.rstests/aws_lc_provider.rstools/xmlsec1/src/capabilities.rstools/xmlsec1/src/commands.rstools/xmlsec1/src/key_material.rstools/xmlsec1/tests/process_contract.rs
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Compare complete companion SPKI through one validation path. Distinguish native RSA verifier size limits from invalid signatures and cover CLI, XMLDSig, X.509 and exact bit boundaries.
Reuse borrowed companion assertions through explicit provider calls so feature-reduced builds do not contain a single-element loop. Preserve both rejection and successful decryption coverage.
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Normalize traditional EC and protected RSA/EC containers before native provider import. Bound normalization workspace and preserve terminal password and policy errors.
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Summary
aws-lc-fips, keeping RustCrypto as the pure-Rust default and rejecting unsupported mechanisms without fallback.CryptoProvider. Preserve policy, trust, key-usage, and input-budget checks across provider-aware key candidates.Validation
thumbv7em-none-eabihf.Local native execution is not a claim of an approved FIPS operating environment or application certification. CI validates the supported Linux native build configurations.
Closes #180
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