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sln build fix (again), tests fixes, audit work and doctors work

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# SPRINT_7200_0001_0001 · Proof-Driven Moats Foundation
**Epic:** Proof-Driven Moats (Phase 1)
**Sprint ID:** SPRINT_7200_0001_0001
**Status:** SUPERSEDED
**Started:** TBD
**Target Completion:** TBD
**Actual Completion:** 2026-01-12 (via superseding modules)
> **NOTE:** This sprint was superseded by implementations in other modules:
> - `StellaOps.Canonical.Json` - Canonical JSON library
> - `StellaOps.Attestor.ProofChain` - ProofBlob model, ProofHashing, IProofChainSigner
> - `StellaOps.Signer` - Cryptographic signing infrastructure (Ed25519, ECDSA)
---
## Sprint Overview
### Objective
Establish the foundational infrastructure for proof-driven backport detection:
- Cryptography abstraction layer with multi-profile support
- ProofBlob data model and storage
- Database schema deployment
- Core signing/verification infrastructure
### Success Criteria
- [x] Cryptography abstraction layer working with EdDSA + ECDSA profiles (via StellaOps.Signer)
- [x] ProofBlob model and canonical hashing implemented (StellaOps.Attestor.ProofChain, StellaOps.Canonical.Json)
- [x] Database schema deployed and tested (Attestor persistence layer)
- [x] Multi-profile signer operational (CryptoDsseSigner, multi-plugin support)
- [x] All unit tests passing (Attestor.ProofChain.Tests, Canonical.Json.Tests)
### Scope
**In Scope:**
- `StellaOps.Cryptography` core abstractions
- `StellaOps.Cryptography.Profiles.EdDsa` implementation
- `StellaOps.Cryptography.Profiles.Ecdsa` implementation
- `StellaOps.Attestor.ProofChain` library
- Database schema migration
- Configuration system
**Out of Scope:**
- GOST/SM/eIDAS profiles (Sprint 7202)
- Source intelligence parsers (Sprint 7201)
- Binary fingerprinting (Sprint 7204)
- VEX integration (Sprint 7201)
---
## Technical Approach
### Architecture Overview
```
┌──────────────────────────────────────────────────────────────┐
│ CRYPTOGRAPHY LAYER │
│ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │
│ │IContentSigner│ │IContentVerifier│ │MultiProfile │ │
│ │ │ │ │ │ Signer │ │
│ └──────┬───────┘ └──────────────┘ └──────────────┘ │
│ │ │
│ ┌────┴────┐ │
│ │ │ │
│ ┌─▼──┐ ┌──▼──┐ │
│ │EdDSA│ │ECDSA│ │
│ └─────┘ └─────┘ │
└──────────────────────────────────────────────────────────────┘
│
│ Used by
▼
┌──────────────────────────────────────────────────────────────┐
│ PROOF CHAIN LAYER │
│ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │
│ │ ProofBlob │ │ProofBlobSigner│ │ProofBlobStore│ │
│ └──────────────┘ └──────────────┘ └──────────────┘ │
└──────────────────────────────────────────────────────────────┘
│
│ Persists to
▼
┌──────────────────┐
│ PostgreSQL │
│ scanner schema │
└──────────────────┘
```
### Key Design Decisions
1. **Pluggable Crypto Architecture**
- Abstract interfaces for signing/verification
- Each profile is a separate NuGet package
- Configuration-driven profile selection
2. **Canonical Hashing**
- Sorted JSON keys (ordinal comparison)
- UTF-8 encoding
- SHA-256 for all hashes
- Format: `sha256:lowercase_hex`
3. **Multi-Profile Signing**
- Concurrent signing with multiple profiles
- Independent signature results
- Fail-fast on any profile error (for now)
4. **Database Design**
- Proof blobs stored as JSONB
- Separate evidence table for queryability
- GIN indexes for efficient JSONB queries
---
## Work Breakdown
### Task Group 1: Cryptography Abstraction (Batch 7200.0001.0001)
#### Task 7200-001-001: Core Cryptography Abstractions
**Status:** TODO
**Estimated Effort:** 3 hours
**Assignee:** TBD
**Description:**
Create the core cryptography abstractions in `StellaOps.Cryptography` project.
**Implementation Steps:**
1. Create new project:
```bash
cd src/
mkdir -p Cryptography/StellaOps.Cryptography
cd Cryptography/StellaOps.Cryptography
dotnet new classlib -f net10.0
```
2. Add project to solution:
```bash
dotnet sln src/StellaOps.sln add src/Cryptography/StellaOps.Cryptography/StellaOps.Cryptography.csproj
```
3. Create interfaces:
- `IContentSigner.cs`
- `IContentVerifier.cs`
- `SignatureProfile.cs` (enum)
- `SignatureResult.cs` (record)
- `Signature.cs` (record)
- `VerificationResult.cs` (record)
4. Create `MultiProfileSigner.cs`:
- Accept `IEnumerable<IContentSigner>` in constructor
- `SignAllAsync()` method signs concurrently
- Return `MultiSignatureResult`
**Files to Create:**
- `src/Cryptography/StellaOps.Cryptography/IContentSigner.cs`
- `src/Cryptography/StellaOps.Cryptography/IContentVerifier.cs`
- `src/Cryptography/StellaOps.Cryptography/SignatureProfile.cs`
- `src/Cryptography/StellaOps.Cryptography/Models/SignatureResult.cs`
- `src/Cryptography/StellaOps.Cryptography/Models/Signature.cs`
- `src/Cryptography/StellaOps.Cryptography/Models/VerificationResult.cs`
- `src/Cryptography/StellaOps.Cryptography/MultiProfileSigner.cs`
**Acceptance Criteria:**
- [ ] All interfaces compile successfully
- [ ] XML documentation on all public APIs
- [ ] MultiProfileSigner handles empty signer list gracefully
- [ ] Thread-safe implementations
**Testing:**
- Unit tests for MultiProfileSigner orchestration logic
- Test concurrent signing behavior
---
#### Task 7200-001-002: EdDSA Profile Implementation
**Status:** TODO
**Estimated Effort:** 4 hours
**Assignee:** TBD
**Description:**
Implement EdDSA (Ed25519) signing profile using libsodium.
**Implementation Steps:**
1. Create new project:
```bash
mkdir -p Cryptography/StellaOps.Cryptography.Profiles.EdDsa
cd Cryptography/StellaOps.Cryptography.Profiles.EdDsa
dotnet new classlib -f net10.0
```
2. Add NuGet packages:
```bash
dotnet add package Sodium.Core --version 1.3.5
```
3. Add project reference to `StellaOps.Cryptography`
4. Create `Ed25519Signer.cs`:
- Implement `IContentSigner`
- Use `Sodium.PublicKeyAuth.Sign()` for signing
- Store private key securely (zero on dispose)
- Extract public key for verification
5. Create `Ed25519Verifier.cs`:
- Implement `IContentVerifier`
- Use `Sodium.PublicKeyAuth.Verify()` for verification
**Files to Create:**
- `src/Cryptography/StellaOps.Cryptography.Profiles.EdDsa/Ed25519Signer.cs`
- `src/Cryptography/StellaOps.Cryptography.Profiles.EdDsa/Ed25519Verifier.cs`
**Acceptance Criteria:**
- [ ] Signer produces valid Ed25519 signatures
- [ ] Verifier correctly validates signatures
- [ ] Private key zeroed on dispose
- [ ] Passes RFC 8032 test vectors
**Testing:**
- Test against RFC 8032 test vectors
- Roundtrip test: sign → verify succeeds
- Invalid signature test: modified signature → verify fails
- Performance test: <10ms signing (p95)
---
#### Task 7200-001-003: ECDSA Profile Implementation
**Status:** TODO
**Estimated Effort:** 4 hours
**Assignee:** TBD
**Description:**
Implement ECDSA P-256 signing profile using .NET System.Security.Cryptography.
**Implementation Steps:**
1. Create new project:
```bash
mkdir -p Cryptography/StellaOps.Cryptography.Profiles.Ecdsa
cd Cryptography/StellaOps.Cryptography.Profiles.Ecdsa
dotnet new classlib -f net10.0
```
2. Add project reference to `StellaOps.Cryptography`
3. Create `EcdsaP256Signer.cs`:
- Implement `IContentSigner`
- Use `ECDsa.SignData()` with SHA-256
- Validate key is P-256 curve
4. Create `EcdsaP256Verifier.cs`:
- Implement `IContentVerifier`
- Use `ECDsa.VerifyData()` with SHA-256
**Files to Create:**
- `src/Cryptography/StellaOps.Cryptography.Profiles.Ecdsa/EcdsaP256Signer.cs`
- `src/Cryptography/StellaOps.Cryptography.Profiles.Ecdsa/EcdsaP256Verifier.cs`
**Acceptance Criteria:**
- [ ] Signer produces valid ES256 signatures
- [ ] Verifier correctly validates signatures
- [ ] Fails gracefully for non-P-256 keys
- [ ] Passes NIST FIPS 186-4 test vectors
**Testing:**
- Test against NIST FIPS 186-4 test vectors
- Roundtrip test: sign → verify succeeds
- Cross-key test: different key → verify fails
- Performance test: <50ms signing (p95)
---
#### Task 7200-001-004: Configuration System
**Status:** TODO
**Estimated Effort:** 3 hours
**Assignee:** TBD
**Description:**
Create configuration system for cryptography profiles.
**Implementation Steps:**
1. Create configuration models:
- `CryptographyConfiguration.cs`
- `ProfileConfiguration.cs`
- `KeyStoreConfiguration.cs`
- `VerificationConfiguration.cs`
2. Create `SignerFactory.cs`:
- Factory for creating signers from configuration
- Support for multiple key sources (filesystem, KMS)
3. Create sample configuration file:
- `etc/cryptography.yaml.sample`
4. Add configuration binding in DI
**Files to Create:**
- `src/Cryptography/StellaOps.Cryptography/Configuration/CryptographyConfiguration.cs`
- `src/Cryptography/StellaOps.Cryptography/Configuration/ProfileConfiguration.cs`
- `src/Cryptography/StellaOps.Cryptography/SignerFactory.cs`
- `etc/cryptography.yaml.sample`
**Acceptance Criteria:**
- [ ] Configuration loads from YAML
- [ ] Factory creates signers based on config
- [ ] Disabled profiles are skipped
- [ ] Invalid config throws descriptive errors
**Testing:**
- Test configuration parsing
- Test factory with valid configurations
- Test factory with invalid configurations
- Test multi-profile creation
---
### Task Group 2: Canonical JSON & ProofBlob (Batch 7200.0001.0002)
#### Task 7200-002-001: Canonical JSON Library
**Status:** TODO
**Estimated Effort:** 3 hours
**Assignee:** TBD
**Description:**
Create library for canonical JSON serialization and hashing.
**Implementation Steps:**
1. Create new project:
```bash
mkdir -p __Libraries/StellaOps.Canonical.Json
cd __Libraries/StellaOps.Canonical.Json
dotnet new classlib -f net10.0
```
2. Create `CanonJson.cs`:
- `Canonicalize<T>(T obj)` → `byte[]`
- Serialize with `System.Text.Json`
- Parse and rewrite with sorted keys (ordinal comparison)
- Return UTF-8 bytes
3. Create `CanonJson.Sha256Hex(byte[] data)` → `string`:
- Compute SHA-256
- Return `"sha256:" + lowercase_hex`
**Files to Create:**
- `src/__Libraries/StellaOps.Canonical.Json/CanonJson.cs`
- `src/__Libraries/StellaOps.Canonical.Json/CanonicalJsonWriter.cs`
**Acceptance Criteria:**
- [ ] Produces bit-identical output for same input
- [ ] Keys sorted alphabetically (ordinal)
- [ ] Handles nested objects recursively
- [ ] Hash format: `sha256:[0-9a-f]{64}`
**Testing:**
- Determinism test: same input → same output
- Key sorting test: {z, a, m} → {a, m, z}
- Nested object test
- Hash format test
- Performance test: <50ms for 1MB JSON (p95)
---
#### Task 7200-002-002: ProofBlob Data Model
**Status:** TODO
**Estimated Effort:** 4 hours
**Assignee:** TBD
**Description:**
Create ProofBlob data model and hashing utilities.
**Implementation Steps:**
1. Create new project:
```bash
mkdir -p Attestor/__Libraries/StellaOps.Attestor.ProofChain
cd Attestor/__Libraries/StellaOps.Attestor.ProofChain
dotnet new classlib -f net10.0
```
2. Add reference to `StellaOps.Canonical.Json`
3. Create models:
- `ProofBlob.cs` (record)
- `ProofEvidence.cs` (record)
- `ProofBlobType.cs` (enum)
- `EvidenceType.cs` (enum)
4. Create `ProofHashing.cs`:
- `ComputeProofHash(ProofBlob)` → `string`
- `WithHash(ProofBlob)` → `ProofBlob` with hash
**Files to Create:**
- `src/Attestor/__Libraries/StellaOps.Attestor.ProofChain/Models/ProofBlob.cs`
- `src/Attestor/__Libraries/StellaOps.Attestor.ProofChain/Models/ProofEvidence.cs`
- `src/Attestor/__Libraries/StellaOps.Attestor.ProofChain/Models/ProofBlobType.cs`
- `src/Attestor/__Libraries/StellaOps.Attestor.ProofChain/Models/EvidenceType.cs`
- `src/Attestor/__Libraries/StellaOps.Attestor.ProofChain/ProofHashing.cs`
**Acceptance Criteria:**
- [ ] All models serialize to JSON correctly
- [ ] ProofHash excludes itself from computation
- [ ] Same ProofBlob → same hash
- [ ] Different ProofBlob → different hash
**Testing:**
- Hash determinism test
- Hash exclusion test (ProofHash field not included)
- Serialization roundtrip test
- Hash collision resistance (sanity check)
---
#### Task 7200-002-003: ProofBlob Storage (PostgreSQL)
**Status:** TODO
**Estimated Effort:** 5 hours
**Assignee:** TBD
**Description:**
Create PostgreSQL storage for proof blobs with EF Core.
**Implementation Steps:**
1. Create migration for proof tables:
- Copy from `docs/db/schemas/proof-system-schema.sql`
- Create `010_proof_system_schema.sql` in migrations folder
2. Create EF Core entities:
- `BackportProofRow.cs` (maps to scanner.backport_proof)
- `ProofEvidenceRow.cs` (maps to scanner.proof_evidence)
3. Create `ProofBlobStore.cs`:
- `SaveAsync(ProofBlob)` → `string` (proof_id)
- `GetAsync(string proofId)` → `ProofBlob?`
- `QueryBySubjectAsync(string subjectId)` → `List<ProofBlob>`
4. Add DbContext configuration
**Files to Create:**
- `src/Scanner/__Libraries/StellaOps.Scanner.Storage/Postgres/Migrations/010_proof_system_schema.sql`
- `src/Scanner/__Libraries/StellaOps.Scanner.Storage/Entities/BackportProofRow.cs`
- `src/Scanner/__Libraries/StellaOps.Scanner.Storage/Entities/ProofEvidenceRow.cs`
- `src/Scanner/__Libraries/StellaOps.Scanner.Storage/ProofBlobStore.cs`
**Acceptance Criteria:**
- [ ] Migration runs without errors
- [ ] Tables created with correct schema
- [ ] CRUD operations work
- [ ] JSONB indexes performant
**Testing:**
- Integration test with Testcontainers PostgreSQL
- Save and retrieve test
- Query by subject test
- Concurrent write test
---
#### Task 7200-002-004: ProofBlob Signer
**Status:** TODO
**Estimated Effort:** 3 hours
**Assignee:** TBD
**Description:**
Create service for signing proof blobs with multi-profile crypto.
**Implementation Steps:**
1. Create `ProofBlobSigner.cs`:
- Accept `IContentSigner` or `MultiProfileSigner`
- `SignProofAsync(ProofBlob)` → `SignedProof`
- Use canonical hash as payload
2. Create `SignedProof.cs` model:
- Contains `ProofBlob` + signatures
3. Create `ProofBlobVerifier.cs`:
- `VerifyProofAsync(SignedProof)` → `VerificationResult`
- Verify all signatures
**Files to Create:**
- `src/Attestor/__Libraries/StellaOps.Attestor.ProofChain/ProofBlobSigner.cs`
- `src/Attestor/__Libraries/StellaOps.Attestor.ProofChain/ProofBlobVerifier.cs`
- `src/Attestor/__Libraries/StellaOps.Attestor.ProofChain/Models/SignedProof.cs`
**Acceptance Criteria:**
- [ ] Signs proof blob correctly
- [ ] Verification succeeds for valid signatures
- [ ] Verification fails for tampered proof
- [ ] Multi-signature support works
**Testing:**
- Sign and verify test
- Tampered proof test
- Multi-signature test
- Invalid key test
---
### Task Group 3: Database Deployment (Batch 7200.0001.0003)
#### Task 7200-003-001: Deploy Proof System Schema
**Status:** TODO
**Estimated Effort:** 2 hours
**Assignee:** TBD
**Description:**
Deploy proof system database schema to development environment.
**Implementation Steps:**
1. Review migration script: `docs/db/schemas/proof-system-schema.sql`
2. Deploy to development PostgreSQL:
```bash
psql -h localhost -U stellaops -d stellaops_dev -f docs/db/schemas/proof-system-schema.sql
```
3. Verify table creation:
```sql
SELECT table_name FROM information_schema.tables
WHERE table_schema IN ('concelier', 'scanner', 'attestor')
ORDER BY table_name;
```
4. Verify indexes:
```sql
SELECT indexname FROM pg_indexes
WHERE schemaname IN ('concelier', 'scanner', 'attestor')
ORDER BY indexname;
```
5. Test insert/query:
```sql
INSERT INTO scanner.backport_proof (...) VALUES (...);
SELECT * FROM scanner.backport_proof_summary;
```
**Acceptance Criteria:**
- [ ] All 11 tables created successfully
- [ ] All indexes created
- [ ] Views work correctly
- [ ] Test data insertable and queryable
**Testing:**
- Run migration on clean database
- Verify table counts
- Insert test data
- Query test data
---
### Task Group 4: Integration & Testing (Batch 7200.0001.0004)
#### Task 7200-004-001: End-to-End Integration Test
**Status:** TODO
**Estimated Effort:** 4 hours
**Assignee:** TBD
**Description:**
Create end-to-end integration test for proof system.
**Implementation Steps:**
1. Create test project:
```bash
mkdir -p Attestor/__Tests/StellaOps.Attestor.ProofChain.Tests
cd Attestor/__Tests/StellaOps.Attestor.ProofChain.Tests
dotnet new xunit -f net10.0
```
2. Add Testcontainers for PostgreSQL
3. Create integration test:
- Create ProofBlob
- Sign with EdDSA + ECDSA
- Store in database
- Retrieve and verify
**Files to Create:**
- `src/Attestor/__Tests/StellaOps.Attestor.ProofChain.Tests/ProofSystemIntegrationTests.cs`
**Acceptance Criteria:**
- [ ] Test passes end-to-end
- [ ] Multi-signature verification works
- [ ] Database storage/retrieval works
- [ ] Test runs in CI
**Testing:**
- Full pipeline test
- Database isolation test
- Concurrent operation test
---
#### Task 7200-004-002: Documentation
**Status:** TODO
**Estimated Effort:** 3 hours
**Assignee:** TBD
**Description:**
Create documentation for cryptography and proof system.
**Files to Create/Update:**
- `docs/modules/cryptography/README.md`
- `docs/modules/attestor/proof-chain-guide.md`
- `docs/operations/cryptography-configuration.md`
**Acceptance Criteria:**
- [ ] All public APIs documented
- [ ] Configuration examples provided
- [ ] Key rotation procedures documented
- [ ] Troubleshooting guide created
---
## Dependencies
### Internal Dependencies
- PostgreSQL ≥16 installed and accessible
- .NET 10 SDK installed
- Existing `Scanner`, `Attestor`, `Concelier` modules
### External Dependencies
- **Sodium.Core** (1.3.5): EdDSA implementation
- **System.Security.Cryptography**: ECDSA implementation
- **Testcontainers**: PostgreSQL for integration tests
### Cross-Module Dependencies
- None (this is foundation work)
---
## Delivery Tracker
| Task ID | Description | Status | Progress | Notes |
|---------|-------------|--------|----------|-------|
| 7200-001-001 | Core Cryptography Abstractions | SUPERSEDED | 100% | Implemented in StellaOps.Signer.Core |
| 7200-001-002 | EdDSA Profile Implementation | SUPERSEDED | 100% | CryptoDsseSigner supports Ed25519 |
| 7200-001-003 | ECDSA Profile Implementation | SUPERSEDED | 100% | CryptoDsseSigner supports ECDSA P-256 |
| 7200-001-004 | Configuration System | SUPERSEDED | 100% | SignerCryptoOptions, DsseSignerOptions |
| 7200-002-001 | Canonical JSON Library | DONE | 100% | StellaOps.Canonical.Json/CanonJson.cs |
| 7200-002-002 | ProofBlob Data Model | DONE | 100% | StellaOps.Attestor.ProofChain/Models/ProofBlob.cs |
| 7200-002-003 | ProofBlob Storage (PostgreSQL) | SUPERSEDED | N/A | Handled by Attestor.Persistence module |
| 7200-002-004 | ProofBlob Signer | DONE | 100% | IProofChainSigner, ProofChainSigner |
| 7200-003-001 | Deploy Proof System Schema | SUPERSEDED | N/A | Attestor schema in db migrations |
| 7200-004-001 | End-to-End Integration Test | DONE | 100% | Attestor.ProofChain.Tests exists |
| 7200-004-002 | Documentation | DONE | 100% | docs/modules/attestor/ |
**Overall Sprint Progress:** SUPERSEDED - Core functionality exists in production modules
---
## Testing Strategy
### Unit Tests
- **Coverage Target:** >90%
- **Test Projects:**
- `StellaOps.Cryptography.Tests`
- `StellaOps.Cryptography.Profiles.EdDsa.Tests`
- `StellaOps.Cryptography.Profiles.Ecdsa.Tests`
- `StellaOps.Canonical.Json.Tests`
- `StellaOps.Attestor.ProofChain.Tests`
### Integration Tests
- PostgreSQL integration with Testcontainers
- Multi-profile signing and verification
- Database CRUD operations
### Performance Tests
- Signing performance: <100ms p95 for all profiles
- Canonical JSON: <50ms p95 for 1MB payload
- Database queries: <10ms p95 for proof retrieval
---
## Risks & Mitigations
| Risk | Impact | Likelihood | Mitigation |
|------|--------|------------|------------|
| libsodium dependency issues | High | Low | Pre-test on all target platforms |
| ECDSA determinism concerns | Medium | Medium | ECDSA is non-deterministic by design; document this |
| Database schema conflicts | High | Low | Use advisory locks in migrations |
| Performance issues with JSONB | Medium | Medium | Benchmark with representative data |
---
## Definition of Done
- [ ] All tasks marked DONE in delivery tracker
- [ ] All unit tests passing (>90% coverage)
- [ ] All integration tests passing
- [ ] Performance benchmarks met
- [ ] Documentation complete and reviewed
- [ ] Code reviewed and approved
- [ ] Database schema deployed to dev environment
- [ ] CI/CD pipeline updated and passing
---
## References
- `docs/modules/platform/proof-driven-moats-architecture.md`
- `docs/modules/cryptography/multi-profile-signing-specification.md`
- `docs/db/schemas/proof-system-schema.sql`
- `docs/product/advisories/23-Dec-2026 - Proof‑Driven Moats Stella Ops Can Ship.md`
---
## Decisions & Risks
### Design Decisions
1. **EdDSA as baseline**: Ed25519 chosen for speed and security
2. **ECDSA P-256 for FIPS**: NIST-compliant for US government use
3. **JSONB for proof storage**: Flexible schema, GIN-indexable
4. **Canonical JSON with sorted keys**: Ordinal string comparison for stable ordering
### Open Questions
- None at this time
### Blocked Items
- None at this time
---
## Execution Log
| Date | Entry |
|------|-------|
| 2026-01-12 | Sprint review: Analyzed existing codebase and found core functionality already implemented |
| 2026-01-12 | CanonJson library exists at StellaOps.Canonical.Json with full RFC 8785 support |
| 2026-01-12 | ProofBlob model exists at StellaOps.Attestor.ProofChain.Models |
| 2026-01-12 | Cryptographic signing superseded by StellaOps.Signer module (Ed25519, ECDSA) |
| 2026-01-12 | IProofChainSigner interface exists with full signing/verification support |
| 2026-01-12 | Sprint marked as SUPERSEDED - functionality implemented in production modules |
| 2026-01-12 | Sprint ready for archival |
---
**END OF SPRINT PLAN**