# Slice 3: Authentication and Secrets ## Status Complete - automated validation, proportional manual acceptance, and explicit final sign-off passed ## Roadmap Alignment This slice owns the **Authentication and Secrets** function in `ROADMAP.md` and replaces the older roadmap's Step 21. Anonymous execution already exists; credential-backed modes, storage, lifecycle, redaction, and security validation remain. ## Objective Execute every MVP authentication type securely without exposing credentials to the browser or canonical project exports. ## Dependencies - Existing REST proxy and authentication-type model - Slice 2 authentication UI contract - Deployment decision for secret provisioning ## In Scope - Basic, Bearer, API-key header, API-key query, and anonymous authentication - Server-side secret references, storage, resolution, redaction, and lifecycle ## Out of Scope - OAuth 2.0, IBM Cloud IAM, mTLS, and arbitrary authentication scripts ## Tasks - [x] Define the MVP secret-reference model and threat assumptions. - [x] Select and document the server-side secret storage mechanism. - [x] Ensure project JSON contains references and metadata only. - [x] Implement safe secret create, update, lookup, and delete APIs. - [x] Implement Basic authentication injection. - [x] Implement Bearer token injection. - [x] Implement API-key header injection. - [x] Implement API-key query-parameter injection. - [x] Reject missing or incompatible references with structured errors. - [x] Redact credentials from logs, errors, history, and frontend responses. - [x] Exclude secrets from export and project CRUD responses. - [x] Add authentication, failure, and redaction tests. - [x] Update state, deployment, and security documentation. ## Acceptance Criteria - [x] All five modeled authentication modes execute as documented. - [x] Browser-visible traffic and exported JSON never contain stored credentials. - [x] Logs and errors redact sensitive values. - [x] Missing or invalid secret references fail safely and clearly. - [x] Secrets survive the intended MVP deployment lifecycle. ## Validation - [x] Backend TypeScript check passes. - [x] Authentication and redaction tests pass. - [x] Controlled mock-endpoint checks pass. - [x] Docker Compose secret provisioning and restart checks pass. ## Risks and Open Questions - The approved store uses AES-256-GCM rather than plaintext SQLite values; master-key loss makes credentials unrecoverable and rotation remains future work. - Query API keys require special URL redaction. - Secret ownership is limited in a single-user MVP. ## Progress Log - 2026-08-01: The user approved AES-256-GCM encryption in SQLite using a server-only 32-byte master key supplied through Docker/environment configuration. Canonical JSON will carry opaque secret references only. - 2026-08-01: Added the encrypted secret table, metadata-only CRUD API, internal-only resolution path, structured fail-closed key configuration behavior, and `docs/SECRETS.md` threat/lifecycle contract. - 2026-08-01: Backend TypeScript build passed. A controlled Docker lifecycle check created a disposable Bearer credential, returned metadata only, found no plaintext token in SQLite, preserved metadata across backend restart, deleted the record with HTTP 204, and confirmed HTTP 404 afterward. The disposable master key was removed from the running configuration after the check. - 2026-08-01: Added canonical `secretReferenceId`, protected-mode authoring, server-side Basic/Bearer/API-key header/API-key query injection, type compatibility checks, and recursive response-body credential redaction. Controlled httpbingo checks returned HTTP 200 for all four modes while reflected Authorization, header-key, query-key, and URL values were `[REDACTED]`. Missing references and type mismatches returned structured HTTP 400 errors. Full frontend coverage passed at 21 suites / 507 tests, focused authoring coverage passed at 2 suites / 32 tests, and frontend/backend production builds passed. - 2026-08-01: Added guided secret creation and replacement with masked credential inputs, metadata-only listing, compatible-secret selection for actions, and deletion protection for unsaved and saved project references. Added durable AES-256-GCM round-trip, missing-key, and wrong-key backend tests. Backend tests/build, 21 frontend suites / 507 tests, focused 2 suites / 32 tests, and the frontend production build passed. - 2026-08-01: Extracted and tested all four injection modes, missing/not-found/type-mismatch failures, recursive reflected-value redaction, and conservative URL sanitization. Persistent-key Docker restart execution passed with reflected Authorization redacted. Consolidated validation passed at 22 frontend suites / 509 tests, backend security tests/build, frontend production build, and the 13 / 2 / 2 schema matrix. Proportional manual acceptance remains pending. - 2026-08-01: Proportional manual acceptance passed Steps 1-4 in order in isolated Chromium using an unsaved browser copy of `Slice 2 Final` (`#12`). Masked create/replace lifecycle, metadata-only display, compatible guided selection, opaque-only canonical state, Bearer/header-key/query-key execution and redaction, referenced deletion protection, unreferenced cleanup, and missing-reference failure safety all passed. Saved project `#12` was unchanged and the final server-side secret list was empty. A stale blocked-deletion warning remained visible after successful cleanup; it was non-blocking and is tracked in `ROADMAP.md` for error-feedback cleanup. - 2026-08-02: The user granted explicit final Slice 3 sign-off. Slice 3 is complete. ## Handoff - Last completed: Explicit final Slice 3 sign-off. - Next action: Begin the next authorized roadmap slice. - Known blockers: None for the approved design; master-key rotation is explicitly deferred.