auth-yes/docs/archive/AUTH_AUDIT_REPORT.md

Identity Provider Architecture Audit Report

1. Implementation Status Matrix

Component	Status	File Paths / Notes
API Gateway / Auth Hub (Deno/Hono service)	[In Progress]	auth-yes/server/main.ts (Endpoints exist as 501 Not Implemented stubs), core/api-server.ts (Partial implementations in main app)
Auth UI (administration, activation, recovery, and session review)	[Pending]	No Auth UI implementation or auth-ui Compose service exists, although the target architecture requires both.
Shared App SDK (Middleware and API-client wrappers)	[In Progress]	auth-yes/sdk/mod.ts (Basic class structure exists, missing Valkey Client-Side Caching with RESP3 Invalidation)
PostgreSQL Identity Schema	[In Progress]	core/db.ts implements Users, Passkeys, Edge_nodes, and Sessions, but lacks application metadata, RBAC and invitation records, audit records, account status, and display_name required by the specification.
Valkey Session Cache Integration	[Pending]	Mentioned in setup (infrastructure/setup.ts auth-valkey) but no actual integration logic in code yet.
Monorepo Workspace (deno.json) & Multi-stage Dockerfile	[Pending]	deno.json is completely missing. Dockerfiles (Dockerfile, auth-yes/Dockerfile) exist but are single-stage and need multi-stage refinement.
Setup CLI Utility (infrastructure/setup.ts & compose generators)	[In Progress]	infrastructure/setup.ts supports .env.auth and compose.auth.yml generation, but lacks some strict zero-trust configs.
WebAuthn Registration, Authentication & Related Origins	[In Progress]	core/api-server.ts implements basic ceremonies, but uses attestationType: "none" and does not provide the required /.well-known/webauthn Related Origins document. auth-yes/server/main.ts contains only stubbed endpoints.
Add-on Modules (Audit Logging, Invite Codes, Hardware Attestation, Rate Limiting)	[Pending]	No implementation yet for MDS3 attestation verification, rate limiting, audit logging, or invite codes.
Identity Lifecycle & Administration	[Pending]	No implementation exists for account activation, additional passkey enrollment/removal and recovery, profile updates, or session/activity review.

2. Architectural Deviations & Technical Trade-offs

During the recent development sessions, several compromises and deviations were made from the target architecture:

• gRPC Postponed: The Auth API Gateway (auth-yes/server/main.ts) and SDK (auth-yes/sdk/mod.ts) are currently relying on standard HTTP/REST endpoints rather than the gRPC transport required by the target architecture. No gRPC service or Protocol Buffer contract is currently present.
• Centralized DB Schema Coupling: The PostgreSQL initialization in core/db.ts currently houses both central identity tables (Users, Passkeys) and domain-specific tables (Edge_nodes). According to the spec, subsidiary applications should maintain independent databases to prevent schema contamination.
• Attestation Type: The WebAuthn registration in core/api-server.ts currently configures attestationType: "none". This deviates from the strict hardware attestation and FIDO MDS3 verification required by the target architecture.
• Valkey Bypass: Current session validation in core/api-server.ts queries PostgreSQL (sessions table) directly instead of utilizing Valkey for high-throughput in-memory statefulness.

3. Unimplemented Features & Security Gaps

• Valkey RESP3 Client-Side Caching: The Valkey integration is missing, leaving the system vulnerable to network bottlenecks (the "chatty architecture" problem) and lacks microsecond-level session revocation.
• FIDO MDS3 Attestation Verification: The system does not currently verify hardware provenance against the FIDO Alliance Metadata Service (MDS3), allowing software-based passkeys which breaks the strict non-repudiation guarantees.
• RBAC & Multi-tenancy: The database schema is missing tables for Apps, Grants, and Invites. This prevents proper authorization coupling, multi-tenant scoping, and invite-code based user provisioning.
• Internal mTLS: Communication between the App SDK and the Auth API is not yet secured with mTLS (SPIFFE/SPIRE), exposing the internal network to sniffing and replay attacks.
• Network Rate Limiting: The Auth API lacks multi-layered rate limiting, making the (future) Valkey cache vulnerable to exhaustion (OOM) attacks.
• Monorepo Structure: The missing root deno.json prevents proper monorepo workspace management across the decoupled modules.

4. Recommended Next Actions

1. Initialize Monorepo Workspace & Schema Migration:
   • Create a root deno.json to define the workspace (managing core, auth-yes, etc.).
   • Refactor core/db.ts to fully align with the isolated identity schema (adding Apps, Grants, Invites) and decouple subsidiary app schemas.
2. Implement Valkey & Client-Side Caching:
   • Integrate Valkey into the Auth API Gateway for session storage and revocation.
   • Implement RESP3 Client-Side Caching in the Deno App SDK (auth-yes/sdk/mod.ts) to resolve the "chatty architecture" latency and enable instant invalidation.
3. Harden WebAuthn & Internal Networking:
   • Upgrade the WebAuthn ceremonies to enforce strict hardware attestation using FIDO MDS3 BLOB verification.
   • Transition the Auth API and SDK communication from HTTP/REST to gRPC, and introduce internal mTLS to secure the zero-trust perimeter.