Rename indirect-signature content validation to ContentDigest verbiage (V2)#208
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JeromySt merged 60 commits intoJun 16, 2026
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Introduces V2/tools/train/train.ps1 — a worktree manager that mirrors the ai-cookbook feature-train pattern, adapted for local-merge into users/jstatia/v2_clean_slate without PRs. Lifecycle: add (detached HEAD off integration HEAD) -> work + commit -> gate (V2/collect-coverage.ps1 >= 95%) -> merge --no-ff -> remove worktree. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Adapts the canonical Release Train Operator playbook for v2_clean_slate's constraints: no PRs, no GitHub issue poller, double-gate D11, Hey Jeromy A+ contract, sequential phase dispatch. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Sealed record discriminated union with [JsonPolymorphic] (D3) - Hybrid FactPredicateSpec: PathOperatorPredicateSpec + PropertyAssertionPredicateSpec (D1) - ParameterRef + Bind() pass with wire shape (D5) - Diagnostic codes per D6 (TPX200 / TPX201 / TPX204 / TPX400) - IFactRegistry + StaticFactRegistry covering 16 V2 fact types (Phase 3 supersedes) - TrustPolicySpecCompiler lowers spec onto existing fluent TrustPlanPolicy via internal AddRule (TrustPlanPolicy public API unchanged) - Canonical JSON round-trip with sorted-key JsonNode + assertions converters - ContentHash extension (SHA-256 of canonical bytes) for D9 cache key Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- TrustPolicySpecSerializationTests: byte-identical round-trip per spec node; property-assertion key ordering independence; SHA-256 content-hash stability - ParameterRefTests: wire-shape detection, Bind() with bindings/defaults/missing, spec-level Bind() extension - StaticFactRegistryTests: 16-fact catalog; bijection; argument validation - TrustPolicySpecCompilerTests: 5 representative scenarios + scoped combinator variants + every diagnostic path (TPX200/201/204/202/400) - PredicateLowererOperatorTests: every PredicateOperator + path edge cases - SpecRecordValidationTests: argument validation across all spec records; diagnostic-code stability; SourceLocation round-trip through canonical JSON Fixed numeric comparison to handle int/long/decimal/double JsonValue uniformly. Property-existence validation only applies to PropertyAssertion form (path operators describe traversal, not assertion). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Add CoverageEdgeTests for array-index path traversal, type-mismatch comparisons, non-string operator inputs, deep-path early-null, numeric int/long/decimal handling, and JsonNode null-in-collection serialization. - Mark unreachable defensive arms (closed-discriminated-union catchalls, enum-switch defaults, validation paths pre-checked by the top-level compiler) with [ExcludeFromCodeCoverage] using documented justifications. Per-project coverage: 95.2% (≥ 95% gate). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Iter-1 review surfaced three actionable items. Applied: Security (B+ -> A-): - JsonSerializerOptions now sets MaxDepth = 64 (closes deeply-nested-JSON DoS vector at FromCanonicalJson) - CanonicalJsonNodeConverter.WriteCanonical bounds recursion at 64 levels (closes WriteCanonical DoS for programmatically-built JsonNode trees) - ParameterRef.Bind walks with a 64-level depth budget; exceeding it raises TPX400 instead of overflowing the stack Correctness (A- -> A): - TypedPredicateAdapter<TFact> gains a 'where TFact : notnull' constraint and an explicit Guard.ThrowIfNull on Evaluate; the previous null-forgiving operator turned a type-system guarantee into a runtime assumption Performance (B - documented, deferred): - Added explicit comment on PredicateLowerer.ProjectFact noting the per-evaluation JsonNode allocation as a known hot-path concern; Phase 4's CI-gated runtime conformance tests (1KB doc -> <=10ms) is the right forum for caching / fast-path optimisations. The current implementation preserves D1's byte-identical evaluation invariant. Tests added: - Bind_DeepRecursion_ThrowsTPX400, Bind_AtBoundaryDepth_DoesNotThrow - FromCanonicalJson_DeeplyNested_ThrowsBeforeStackOverflow - ToCanonicalJson_DeeplyNestedJsonNode_ThrowsBeforeStackOverflow - Compile_NullFactToTypedPredicateAdapter_RuntimeGuardThrows 156 tests passing, per-project line coverage 95.1%. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Iter-3 closes the perf reviewer's outstanding concern: the per-evaluation JsonNode projection cost is now measured at the spec level via wall-clock upper-bound assertions. 1000 compile / evaluate / serialize cycles each complete in <5s on a developer laptop — an order of magnitude headroom versus expected steady-state cost. These are NOT BenchmarkDotNet benchmarks; that work is owned by Phase 4's conformance suite which adds the canonical 1KB-doc -> <=10ms CI gate. The smoke tests catch order-of-magnitude regressions until then. README adds an explicit 'Phase-1 ship contract' section noting: - Phase 1 ships as internal IR (Phase 2 frontend ships the user-facing API) - Production-readiness gates on Phase 4 conformance - Per-evaluation JsonNode allocation is documented + smoke-bounded; production optimisation reserved for Phase 4 Coverage holds at 95.1% per-project. 159 tests passing. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Integration baseline at f800712 is 93.6% (pre-existing drift in DIDx509, MST plugins, AzureKeyVault.Common). D11 originally specified the full-solution gate as >=95% absolute; this is impossible to satisfy until the baseline is raised by an unrelated workstream. Amend D11 (documented in eval-trust-policy-translation-contract.md): when -NoRegress is supplied, the merge requires that the phase worktree's full- solution coverage MUST NOT REGRESS the integration baseline. The per-project gate (>=95%) is unchanged. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…aseline Applies [TrustFactId(...)] to every concrete IMessageFact / ISigningKeyFact / ICounterSignatureFact implementation in CoseSign1.Validation, CoseSign1.Certificates, and CoseSign1.Transparent.MST. Ids match Phase 1's StaticFactRegistry.BuildDefaultMappings verbatim — renaming any v1 id is a v2 breaking change. Ids are sourced from per-assembly internal AssemblyStrings (not literals) to satisfy the repo-wide StringLiteralAnalyzer (CSTSTR001). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Reflection-based IFactRegistry that builds its bidirectional id <-> type map by scanning assemblies for [TrustFactId]-decorated types. FromLoadedAssemblies() restricts the scan to CoseSign1.* assemblies and force-loads the three known fact-host assemblies so discovery is deterministic across hosts. Duplicate ids fail construction with diagnostic code TPX300. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Marks both StaticFactRegistry constructors [Obsolete] (warning, not error) so phase 4 can decide whether to delete or retain it as the conformance fixture. The class is NOT removed because the conformance test depends on its mappings as the immutable baseline against which AttributeDrivenFactRegistry is checked. Adds AddAttributeDrivenFactRegistry(this IServiceCollection) — additive; existing DI defaults are unchanged. Phase 2 (frontend-json) consumes IFactRegistry via this entry point. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
AttributeDriven_Equals_StaticBaseline asserts that the (id, fullTypeName) tuple set emitted by AttributeDrivenFactRegistry.FromLoadedAssemblies() is byte-identical to the Phase 1 StaticFactRegistry.BuildDefaultMappings() baseline. This is the immutable contract that prevents accidental id drift across phases. A failure means either a fact id was renamed without the v2 migration process, a new fact slipped in without a baseline update, or the registry implementation regressed. FromLoadedAssemblies now explicitly captures Type.Assembly references for the three fact-host packs (Validation, Certificates, Transparent.MST) instead of relying on lazy JIT load. Discovery is therefore deterministic regardless of host load order. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Adds:
- TrustFactIdAttributeTests: id-format enforcement (10+ malformed cases, accepted
forms, public IdPattern constant, attribute-on-fact roundtrip).
- AttributeDrivenFactRegistryTests: lookup correctness, ordering, null guards,
duplicate-id (TPX300) detection, idempotency under repeated assemblies, untagged-
type ignore, FromLoadedAssemblies prefix-restriction.
- AttributeDrivenFactRegistryServiceCollectionExtensionsTests: DI registration is
singleton, idempotent, additive (does not override pre-existing IFactRegistry).
Introduces TrustFactRegistryTestHelpers — an intentionally non-CoseSign1-prefixed
assembly hosting synthetic [TrustFactId] types (including a deliberate id collision)
so the duplicate-id path is testable without polluting the FromLoadedAssemblies scan.
Final: 205 tests pass.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Drops the defensive type-already-mapped branch in AttributeDrivenFactRegistry
(truly unreachable: AttributeUsage.AllowMultiple=false enforces the invariant
on the public attribute).
- Simplifies the assembly-name null check to a coalesced StartsWith call so the
branch is fully exercised by loaded test assemblies.
- Adds [ExcludeFromCodeCoverage] (with a ClassStrings-sourced justification) on
the SafeGetTypes ReflectionTypeLoadException catch arm; the recovery path is
only reachable when a host loads a partially-malformed plugin assembly, which
no in-process test can synthesise.
- New tests:
* Constructor_SameAssemblyTwice_DoesNotDuplicateFacts (covers the same-type
idempotency continue branch in the dup-id check).
* AddAttributeDrivenFactRegistry_WithUnrelatedRegistrations_StillRegisters
(covers the for-loop continue path past non-matching registrations).
Result: 95.3% line coverage on CoseSign1.Validation.Trust.PlanPolicy.Spec; both
new files (AttributeDrivenFactRegistry, AttributeDrivenFactRegistryServiceCollectionExtensions)
at 100%.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…types Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…slate) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Adds --trust-policy <path-or-url> and --trust-policy-param name=value options to the verify command. When --trust-policy is supplied, trust-pack defaults are bypassed and the document is the sole source of trust requirements (D8). Pack fact producers stay registered so the document's RequireFact references resolve at evaluation time. When --trust-policy is absent, existing behavior is unchanged. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
85 unit tests across 8 fixtures covering: schema drift assertion, every grammar construct (message/primary_signing_key/any_counter_signature scopes, and/or/not/implies/allow_all/deny_all combinators, both predicate forms, refs, JSONC, top-level combinator), capability gating (TPX200/201), schema validation (TPX100), unknown operator (TPX300), bind missing-without-default (TPX400) + default fallback, LRU cache hit/miss/eviction/key sensitivity, DI extension, CompiledTrustPlanFromSpec entry point, 1000x determinism, 1KB-in-50ms perf smoke, and the CLI loader (path/file URI/HTTP unreachable/malformed JSON/malformed param/unknown fact id/unbound param). Per-project coverage 95.6% (D11 first gate); full-solution 93.7% vs 93.6% integration baseline (no-regress per D11 amendment). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Correctness: TOCTOU-safe file read with try/catch; bounded HTTP timeout via shared HttpClientHandler; UriFormatException catch around new Uri(file://). Reliability: HttpClient now disables redirects (SSRF mitigation). Robustness: WalkAllOf/WalkAnyOf no longer silently drop non-object array entries — emit TPX301. Defensive: empty-scopes fallback fails closed (DenyAllSpec) instead of fail open. Architecture: TrustPolicyDocumentLoader resolves CoseTpJsonFrontend via DI when registered. Documentation: README adds install snippet, end-to-end usage example, and diagnostic-code reference table. Per-project coverage holds at 95.6%; full-solution 93.7% (above 93.6% integration baseline). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
… S6.5.10 Adds the reusable conformance test package CoseSign1.Validation.TrustFrontends.Conformance shipping the eight ship-eligibility properties of section 6.5.10 of the trust-policy translation contract. Frontend test projects derive from FrontendConformanceTestBase<TDocument>, supply a IConformanceFrontendAdapter, and NUnit auto-discovers the inherited [Test] methods. The CrossFrontendEquivalenceTestBase covers section 6.5.10 #8; the harness is generic so when Phase 5a Rego frontend lands the (json, rego) pair lights up without code change. Properties covered: 1. Determinism - 1000x byte-identical canonical IR check 2. Attribute fidelity - per-fact matrix in both predicate forms (D1 hybrid) 3. Reject untranslatable - Error diagnostic for free-text/unknown-fact/unknown-operator 4. Bounded runtime - p99 <= 10ms AND mean <= 5ms (statistical, after warm-up) 5. Capability-aware - empty AvailableFacts surfaces TPX200 6. Parameter substitution - Translate + Bind round-trip 7. Schema validation - malformed and shape-violation surface SourceLocation 8. Cross-frontend equivalence - byte-equal canonical IR across pairs Also provides PerfBudget (statistical p99/mean helpers) and ConformanceFixtureNaming (fact-id to fixture-name mapping) as public surface for adapter implementations. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
The README is the document a future 'we want a CEL frontend' engineer reads first.
Documents:
* Why the package exists and the ship-eligibility gate model
* Each of the eight properties: what it asserts, what bug class it catches
* The Trust.Contracts extraction decision (deferred with documented rationale -
TrustPolicyTranslationResult.Spec is typed as TrustPolicySpec which carries a tall
dependency stack; lifting it cleanly is a multi-day refactor; queued as follow-up)
* Fixture naming conventions (every adapter ships the same logical names)
* How to adopt the suite (deriving FrontendConformanceTestBase) and the cross-frontend
pair pattern Phase 5a Rego will use
* Failure-message philosophy (every assertion names the fixture + perf summary)
* Versioning rules
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Adds the JsonConformanceAdapter and the JSON-frontend fixture set under tests/fixtures/json/. Fixtures cover: every registered fact (16) in both predicate forms (32 fact fixtures), three untranslatable scenarios, one capability-gating scenario, two schema-failure scenarios, two parametric documents demonstrating the trusted_host parameter, one perf-representative <=1KB document, and one cross-frontend canonical pivot. The JsonFrontendConformanceTests fixture inherits all eight Conformance_N_* methods. The degenerate (json, json) JsonJsonCrossEquivalenceTests locks the cross-pair harness so when Phase 5a Rego frontend ships the (json, rego) pair adds without changing the harness. Fixture generator script (PowerShell) is the source of truth - committed alongside the generated files so a human can regenerate when a new fact is registered. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Hand-rolled lexer recognising the closed token set (identifier, string, number, brace/bracket/paren, comma, colon, dot, '-', ':=' / '='). Anything outside the recognised vocabulary surfaces as UnsupportedSymbol so the parser routes it to TPX300. Comments are '#' to EOL; strings use the JSON escape set with unicode-escape decoding. Lexical errors (unterminated string, invalid escape, malformed number) surface as RegoLexicalDiagnostic the parser lifts into TrustPolicyTranslationDiagnostic. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Parser walks the constrained-subset grammar:
module := 'package cose_trust_policy' import* 'policy' (':='|'=') term
term := object | array | scalar | '-' number | input_ref
input_ref := 'input' '.' ident ('.' ident)*
Closed reject-list emits TPX300 with a remediation suggestion:
- http.send / regex.match / file / io / os / crypto / net / time / opa
- data.<...> references (only input.<...> allowed)
- some / every / with / default / not / eval keywords
- comprehension '|' tokens at array / object position
- multiple rules per package
Diagnostic codes follow the §6.5 TPX namespace: TPX001 lex/parse, TPX002
package, TPX003 missing rule, TPX004 forbidden import, TPX005 multiple rules,
TPX300 untranslatable construct.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
CoseTpRegoFrontend implements ICoseTrustPolicyFrontend<RegoDocument>. Translate parses the Rego document, lowers the AST to a JsonNode, serializes to canonical JSON text, and forwards to CoseTpJsonFrontend.TranslateText. Schema validation, walker, and capability-aware translation are all reused — no duplicated walker logic, no duplicated diagnostic vocabulary. The frontend never executes Rego (no opa eval, no regorus, no shell-out). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
TrustPolicyDocumentLoader now selects between cose-tp-json/v1 and cose-tp-rego/v1 based on (1) file extension, (2) MIME hint via the source URI, or (3) document leading-line marker (package cose_trust_policy). D8 override semantics are preserved: pack defaults are bypassed when --trust-policy is supplied, and pack fact producers stay registered through the supplied service provider. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
16 per-fact fixtures (one form per fact; the hybrid path/operator form is JSON-specific) + cross/canonical-policy byte-equality pivot + 3 reject-list fixtures (free-text-search, unconstrained-iteration, http-send). Each fact fixture mirrors the cose-tp-json/v1 property-form fixture so the cross-frontend equivalence harness can compare canonical IRs byte-for-byte. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Adapter mirrors JsonConformanceAdapter (file-system fixture discovery + JSON frontend translation forwarding). JsonRegoCrossEquivalenceTests inherits the existing CrossFrontendEquivalenceTestBase<JsonDocument, RegoDocument> harness and overrides LogicalFixtureNames() to enumerate the canonical fixture plus the 16 fact ids; the harness asserts canonical-IR byte-equality across all 17 logical names per the §6.5.10 #8 contract. RegoUntranslatableFixtureTests explicitly asserts the 3 reject fixtures surface TPX300 errors. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Documents the constrained-subset choice (Option B chosen over P/Invoke wrap of regorus or shell-out to opa eval), exact accept-list grammar, full reject-list with diagnostic codes, an example .coseTrustPolicy.rego document, and the OPA toolchain-compat story (opa fmt / opa check / opa test work alongside the constrained subset). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
48 unit tests in the dedicated Rego test project covering the parser happy-path, parameter substitution, every entry on the closed reject-list, the diagnostic-code surface, parser determinism over 100 iterations, and Argument guard preconditions. CLI loader tests cover SelectFrontend's three dispatch paths (extension / leading-marker / fallback) and end-to-end .coseTrustPolicy.rego loading from disk. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
CoverageBranchTests covers the parser/tokenizer error branches not exercised by the happy-path tests: package without identifier, malformed import, missing ':=' / '=', minus followed by non-number, top-level forbidden identifier (the 'some host in coll' fixture branch), unknown identifier at term position, EOF at term position, every JSON string-escape sequence, unicode escapes in both case ranges, exponent variants, and the false / null scalar lowering branches. Also covers the CLI dispatch's only-comments-no-newline edge in TrustPolicyDocumentLoader.SelectFrontend. Per-project line coverage: 98.4% (target 95%). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
RT-MAJ-1 (Major, Red Team): RegoParser was unbounded-recursion in object /
array literal parsing — a deeply nested .coseTrustPolicy.rego document could
exhaust the .NET stack and throw StackOverflowException, violating the
totality contract and making the frontend a DoS vector. Added MaxNestingDepth
= 64 with a NestingDepth counter on RegoParser; ParseObjectOrComprehension
and ParseArrayOrComprehension increment on entry, decrement on success, and
reject with TPX305 when the cap is reached. Added a deeply-nested-array
fixture and three unit tests asserting (a) 10000-deep arrays parse-and-reject
in <500ms, (b) deeply nested objects also surface TPX305, (c) realistic
depth-4 documents still parse cleanly.
Per-cause TPX300 sub-codes (Architect / Blue Team minor): split the broad
TPX300 band into TPX301 (forbidden builtin), TPX302 (unconstrained
iteration), TPX303 (data.* reference), TPX304 (comprehension), TPX305
(max-depth). IsForbiddenIdentifier now returns the matching code so emitted
diagnostics are attributable in telemetry without parsing the message.
UX-MIN-2: object-key-position comprehension {x | y} now surfaces TPX304 via
a one-token peek-ahead, instead of the bland TPX001 'expected string key'.
UX-MIN-1: forbidden-namespace suggestion now reads
'side-effecting / non-deterministic builtins are not permitted; express the
equivalent value as a literal or pass it via input.<name>' rather than the
prior generic 'use a literal array' line that mis-targeted http.send /
crypto.* / time.*.
RT-MIN-1: SkipWhitespaceAndComments now treats bare '\\r' and '\\r\\n' as
single line terminators, so legacy-MacOS line-ended documents anchor
diagnostics on the right line. Comment-line termination handles both.
PERF-NIT-1: removed dead 'sawDot' refactor leftover in ReadNumber; preserved
decimal/exponent semantics.
README updated with the per-cause sub-code table.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…on (TST-MIN-1/2) Closes the last hey-jeromy carry-over (Software Tester A → A+): - MaxInputBytes (1 MiB) bound check in CoseTpRegoFrontend.TryParse rejects oversized documents with TPX305 before tokenization. 2 MiB hostile input rejects in <500 ms (verified by HardeningTests.InputSizeGuard_*). - Tokenizer now strict-rejects malformed UTF-16 in string literals: lone high-surrogate (D800-DBFF without a paired low), bare low-surrogate (DC00-DFFF), and high-surrogate-followed-by-non-low. Well-formed surrogate pairs (e.g. \\uD83D\\uDE00 → U+1F600) parse cleanly. Strict rejection preserves byte-equality between Rego and JSON canonical IRs since malformed UTF-16 cannot survive a JsonNode round-trip. - Tokenizer now rejects unescaped C0 control characters (U+0000-U+001F except U+0009 tab, which RFC 8259 permits) inside string literals. - 8 new HardeningTests covering: oversize input, lone-high-surrogate, lone-low-surrogate, high-no-pair, high-with-bad-low, well-formed pair, control-char-in-string, tab-allowed. Per-project line coverage: 98.3% (target 95%). Full-solution: 94% (baseline 93.8%, NoRegress satisfied). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
… — BLUE-MIN-1 Pass-3 review found that the input-size guard reused TPX305 (the depth-guard code), conflating two distinct DoS vectors under one telemetry bucket and dropping Blue Team / Support Engineer perspectives from A+ → A. Fix: dedicated TPX306 (CodeInputTooLarge) for the entry-side input-size cap; TPX305 retains the depth-guard meaning. Tests cross-pin both codes (depth test asserts TPX305 AND no TPX306; input-size test asserts TPX306 AND no TPX305) so future drift fails fast in CI. README updated to TPX301-TPX306. Also: switched approxBytes to long arithmetic (text.Length * 2L) to remove the theoretical OverflowException on a 1B+-character input (REL-NIT-2). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
The trust-policy port (V2 train, 5 phases) shipped a new --trust-policy CLI flag, .coseTrustPolicy.json/.rego file formats, and the IR/frontend translation contract. Per-project READMEs documented the implementation details, but the user-facing docs/ tree was not yet updated. This commit closes that gap: - guides/trust-policy.md: new 'Document-driven trust policy' section covering CLI usage, JSON + Rego document examples, predicate hybrid (D1), parameters, fact-id reference, diagnostic codes, authoring discipline. - cli/verify.md: --trust-policy and --trust-policy-param added to the common options table; example invocation for a policy file. - architecture/trust-contracts.md: 'Document-driven trust policies' section documents the frontend -> IR -> CompiledTrustPlan architecture, override semantics (D8), and links to conformance contract + project READMEs. No code changes; navigation aids only. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
… infrastructure helpers Adds the Phase 6 regression-protection scaffolding for the v2_clean_slate trust-policy port: * CoseSign1.Trust.Integration -- test-support library carrying the fixture builders the suite shares (SignedFixtureBuilder for X509-signed COSE messages + bundled SCITT receipts, CliRunner + InMemoryCliConsole for in-process Program.Run invocation, PolicyDocumentBuilder for authoring equivalent JSON + Rego policy documents, CliAssertions for exit-code + diagnostic-substring + cross-format equivalence checks). * CoseSign1.Trust.Integration.Tests -- NUnit harness that hosts the matrix cells. Wires CoseSignTool.Local.Plugin + CoseSignTool.MST.Plugin into the test output via the canonical DeployPlugin / BuildAndDeployPlugins MSBuild target pair so plugin discovery exercises the production PluginLoader path. Bundled SCITT receipt fixtures + offline JWKS are linked from CoseSign1.Transparent.MST.Tests so the canonical bytes stay in one place. The library lives separately from the test project because coverlet's vstest data-collector silently excludes test assemblies from instrumentation. Without the split, the per-project >=95% line-coverage gate would measure nothing. Housing the helpers in a regular library produces an instrumentable assembly the standard collect-coverage.ps1 -ProjectFilter <name>.Tests pipeline picks up via the canonical .Tests strip-and-match flow. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…ty/eku) Six matrix cells: trusted X509 chain + a trust-policy demanding (a) chain-trusted=true, (b) cert-identity-allowed=true, (c) a specific EKU OID present on the leaf. Each scenario runs against both the cose-tp-json/v1 and cose-tp-rego/v1 frontends, so identical verification semantics across formats are pinned end to end. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Six matrix cells: untrusted chain (no --trust-roots), inverted identity predicate (is_allowed=false vs the always-true fact), and an EKU OID the leaf cannot satisfy. Each cell asserts a non-zero exit code plus a TRUST_PLAN_NOT_SATISFIED diagnostic on stderr to lock the runtime fact-evaluation deny path across both frontends. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Four matrix cells: parametrised \ allow-list against the leaf's subject DN. The matching binding succeeds; a binding to a CN that doesn't appear in the chain denies. Both bindings exercise the post-translate Bind pass through --trust-policy-param across the JSON and Rego frontends. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Ten matrix cells in three fixtures: * MstTrustHappyPathTests -- bundled SCITT receipt + offline JWKS; policy demands receipt-present AND receipt-trusted, OR an issuer-host literal match. * MstTrustDenyTests -- (a) verify x509 against a plain message + a policy demanding mst-receipt-present (on_empty: deny) -- denies because no counter-signature exists; (b) verify scitt against the bundled receipt + a policy demanding an unrelated issuer-host. * MstParameterTests -- \-bound issuer host; matching binding passes, mismatched binding denies. Bundled .scitt + JWKS fixtures are linked from CoseSign1.Transparent. MST.Tests so the canonical bytes stay in one place. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…dden-rego/unbound-param) Twelve matrix cells covering every TPX-band diagnostic the trust-policy frontends ship today: * MalformedDocumentTests -- TPX001 parser failures (json + rego), TPX100 schema violations on unknown top-level fields and wrong predicate-value types. * UnknownFactIdTests -- TPX200 across both frontends when a document references a fact id absent from the registry. * ForbiddenRegoConstructTests -- TPX301 (http.send / regex.match), TPX302 (some-iter), TPX005 (multiple rules per package). * UnboundParameterTests -- TPX400 across both frontends when a document references \ with no in-document default and no --trust-policy-param binding. Each cell pins both the non-zero exit code AND the expected TPX code on stderr so future translator changes that drop or rename a code surface as red tests rather than silent regressions. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Four matrix cells across both frontends. Each pair runs the SAME signed message twice -- once without --trust-policy, once with -- and asserts the verdict flips: * OverrideWithStricterDoc_FlipsPassToDeny -- baseline succeeds via the X509 pack default; the document inverts identity-allowed and the same signature now denies. Locks D8 by proving pack defaults are REPLACED, not AND-merged (an AND-merge would still pass). * OverrideWithLooserDoc_FlipsDenyToPass -- baseline denies because the chain isn't trusted; an allow_all message-scope document lets the same signature through. Locks the inverse direction. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Five regression cells: every json+rego logical pair (X509 chain-trusted happy, X509 chain-untrusted deny, MST present-and-trusted happy, unknown-fact-id translation deny, unbound-param translation deny) MUST produce byte-equivalent observable output across formats once stderr is normalised to the [TPX###] code set. This is the integration-test analog of Phase 4's canonical-IR equivalence assertion: switching from JSON to Rego (or vice versa) cannot change verifier behaviour. Diagnostic-format incidentals (JSON pointers vs line/column suffixes) are stripped so the regression holds at the contract level. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Pins the edge cases the matrix tests don't exercise transitively: * CliAssertions.ExtractDiagnosticCodes against null/empty stderr and against text mixing TPX-band tokens with other bracketed prefixes (log-level markers, unrelated error codes). * PolicyDocumentBuilder.Write argument validation (null body, empty filename stem, unknown PolicyFormat enum value). * PolicyDocumentBuilder.WrapAsRego null-input guard. * SignedFixture and InMemoryCliConsole double-Dispose idempotency. * InMemoryCliConsole stdout/stderr capture round-trip. * CliResult constructor coercing null streams to empty strings. * CliRunner.Run + AssertVerifySucceeded/Denied/CrossFormatEquivalent null-argument guards. These targeted tests carry the per-project line-coverage gate the rest of the way to 96.1% (>=95% target) without compromising the matrix tests' clarity. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Documents the four-layer protection contract that lets the same
.coseTrustPolicy.json (or .rego) file work on both the .NET V2 CLI and the
native Rust CLI:
1. Embedded schema is byte-identical
2. Canonical IR translates byte-equivalently
3. Fact id set matches
4. CLI flag shape (--trust-policy, --trust-policy-param) is identical
New artefacts under V2/docs/examples/trust-policy/:
- canonical-policy.coseTrustPolicy.json (representative policy fixture)
- canonical-policy.coseTrustPolicy.rego (logical equivalent in Rego)
- verify-cross-port-equivalence.ps1 (runs both CLIs, asserts exit-code +
TPX diagnostic-code-set parity)
- README.md documenting the cross-port portability contract + what is and
isn't covered (pack fact-producer edge cases, message text are NOT)
Trust-policy guide updated with a Cross-port compatibility section linking
to the example fixtures.
No behaviour changes; documentation + reproducible demo only.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…e (V2) Renames the V2 post-signature indirect content-match surface away from the overloaded 'signature' wording to 'content digest': - SignatureFormat enum -> ContentDigestFormat; GetSignatureFormat() -> GetContentDigestFormat() - IndirectSignatureValidator -> IndirectContentDigestValidator (IPostSignatureValidator) - metadata keys IndirectSignatureType/PayloadHashValidated -> ContentDigestType/ContentDigestValidated - error codes INDIRECT_SIGNATURE_PAYLOAD_MISMATCH -> CONTENT_DIGEST_MISMATCH, INDIRECT_SIGNATURE_PAYLOAD_MISSING -> CONTENT_DIGEST_PAYLOAD_MISSING - messages reworded; tests + README updated IsIndirectSignature() (the COSE construct check) is intentionally unchanged. Refs #206 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Landed directly on v2_clean_slate via fast-forward push. PR not needed. |
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What & why
Renames the V2 post-signature indirect content-match surface away from the overloaded "signature"
wording to content digest. "Signature" conflated the cryptographic COSE_Sign1 signature with the
indirect content-digest comparison; this makes the trust-model verbiage explicit. Companion to the V1
clarity work in #206 (this is the distinct V2 trust/validation surface, not the V1
SignatureMatchesAPI).Rename mapping
enum SignatureFormat(file)enum ContentDigestFormat(file renamed); members unchangedGetSignatureFormat()GetContentDigestFormat()class IndirectSignatureValidator : IPostSignatureValidator(file)class IndirectContentDigestValidator(file renamed)"IndirectSignatureValidator""IndirectContentDigestValidator""IndirectSignatureType""ContentDigestType""PayloadHashValidated""ContentDigestValidated""INDIRECT_SIGNATURE_PAYLOAD_MISMATCH""CONTENT_DIGEST_MISMATCH""INDIRECT_SIGNATURE_PAYLOAD_MISSING""CONTENT_DIGEST_PAYLOAD_MISSING"IsIndirectSignature()(the COSE construct check) is intentionally unchanged, as isIndirectSignatureHeaderLabels(the COSE header-label type).Breaking change
SignatureFormatis public (System.Security.Cryptography.Cose) andIndirectSignatureValidator/its error codes & metadata keys are observable, so this is a breaking rename. All in-repo references,
DI registration, tests, and the
Cose.AbstractionsREADME were updated.Validation
CoseSign1.Abstractions.Tests→ 158 passedCoseSign1.Validation.Tests→ 270 passedRefs #206