Three tasks implementing ADR-027: 1. core/rawkey-decouple-from-iroh: TlsIdentity::RawKey now uses Ed25519SecretKey (alknet-core-owned wrapper over ed25519_dalek) instead of iroh::SecretKey. RawKeyCertResolver and Ed25519SigningKey un-gated from #[cfg(all(quinn, iroh))] to #[cfg(quinn)] only. Quinn-only builds (default) now support RFC 7250 raw-key identity. iroh transport converts via iroh::SecretKey::from_bytes. 2. core/endpoint-request-client-cert: replaced with_no_client_auth() with AcceptAnyCertVerifier — a custom ClientCertVerifier that requests client certs but doesn't require them or verify against a CA. alknet's identity model is fingerprint-based (the authorized_fingerprints set is the trust anchor), not PKI-based. Peer certs are extracted at the TLS layer for fingerprinting; peers without certs connect normally. 3. core/acme-integration: TlsIdentity::Acme variant (domains, cache_dir, directory, contact) + AcmeDirectory enum. TlsSetup two-phase construction: synchronous for X509/RawKey/SelfSigned, async for Acme (spawns AcmeState event loop, builds ServerConfig with ResolvesServerCertAcme). acme-tls/1 ALPN added when ACME is active; dispatch_quinn guard closes challenge connections gracefully (challenge is TLS-layer-handled). acme feature gate keeps rustls-acme out of non-ACME builds. Workspace: build/test/clippy green across all 3 feature configs (quinn-only, quinn+iroh, quinn+acme, all-features). 331 tests, 0 failures, 0 warnings.
status, last_updated
| status | last_updated |
|---|---|
| draft | 2026-06-22-21 |
alknet-core
Core library for ALPN-based protocol dispatch. Every handler crate depends on alknet-core.
Documents
| Document | Status | Description |
|---|---|---|
| core-types.md | draft | ProtocolHandler trait, HandlerError, Connection, BiStream, StreamError |
| endpoint.md | draft | ALPN router, HandlerRegistry, accept loop, graceful shutdown |
| auth.md | draft | AuthContext, Identity, IdentityProvider, AuthToken, resolution flow |
| config.md | draft | StaticConfig, DynamicConfig, ArcSwap, ConfigReloadHandle |
Applicable ADRs
| ADR | Title | Relevance |
|---|---|---|
| 001 | ALPN-Based Protocol Dispatch | Core architectural model |
| 002 | ProtocolHandler Trait | The trait every handler implements |
| 003 | Crate Decomposition | alknet-core's position in the crate graph |
| 004 | Auth as Shared Core | IdentityProvider in core |
| 006 | ALPN String Convention | ALPN format, one-ALPN-per-connection |
| 007 | BiStream Type Definition | Connection, BiStream trait, SendStream, RecvStream |
| 009 | One-Way Door Framework | Decision classification |
| 010 | ALPN Router and Endpoint | Endpoint, HandlerRegistry, accept loop |
| 011 | AuthContext Structure | AuthContext fields and resolution flow |
| 015 | Privilege Model and Authority Context | Per-request identity on OperationContext; admin scope for config reload |
Relevant Open Questions
| OQ | Title | Status | Relevance |
|---|---|---|---|
| OQ-04 | Dynamic handler registration | resolved (start static) | HandlerRegistry is immutable at startup |
| OQ-05 | Multi-connectivity endpoint | resolved (quinn + iroh) | AlknetEndpoint supports both, both feature-gated |
| OQ-11 | Handler-level auth resolution observability | resolved | Handlers store resolved identity on Connection; two identity scopes (connection-level for observability, per-request for ACL) |
Key Design Principles
- One trait, one dispatch point:
ProtocolHandleris the only abstraction handlers implement. No StreamInterface/MessageInterface split. - ALPN does the routing: The endpoint dispatches by ALPN string. No byte-peeking, no ListenerConfig enum.
- Handlers own their wire format: Each handler manages its own protocol parsing. alknet-core provides the Connection, not the framing.
- Auth is hybrid: The endpoint provides what it can (TLS-level auth). Handlers complete what they need. AuthContext may be partial.
- WASM door preserved: BiStream is a trait, Connection is an opaque type. Core types don't assume tokio or quinn in public APIs.