anp 0.8.7

Dart SDK for Agent Network Protocol helpers, authentication, proofs, and WNS.

ANP Dart SDK

Dart SDK baseline for Agent Network Protocol (ANP) helpers. The first release target is a pure Dart package usable from Flutter mobile and other Dart runtimes where dependencies support the platform.

Status

Implemented baseline modules:

• codec helpers: base64/base64url, base58, canonical JSON
• key material models: secp256k1, secp256r1, ed25519, x25519 with standard PKCS#8/SPKI PEM persistence
• authentication helpers: DID WBA document creation, legacy auth header/JSON verification, HTTP Message Signatures, DID resolver shape, verifier/authenticator facades
• proof helpers: Go-compatible W3C proof signing input, object/group/DID-WBA wrappers, IM helpers, RFC9421 origin proof helpers
• WNS helpers: Go-compatible dot-handle validation, URI parsing/building, resolver status handling, binding helpers

direct_e2ee / X3DH is intentionally not exported in v1.

Validation

dart pub get
dart analyze
dart test
dart run example/create_did_document.dart
dart run example/authentication_http_signature.dart
dart run example/proof.dart
dart run example/wns.dart

Notes

This package is a recovery baseline after consensus planning. Dart↔Go key, auth, proof, and WNS fixture interop helpers are implemented for representative release-gate cases. Direct E2EE/X3DH remains deferred. See doc/dependency_matrix.md and doc/go_to_dart_api_mapping.md.

Interop helpers

dart run tool/interop.dart did-fixture --profile e1 --hostname example.com > /tmp/dart-e1-fixture.json
(cd ../golang && go run ./cmd/anp-interop verify-key-fixture --fixture /tmp/dart-e1-fixture.json)
dart run tool/interop.dart verify-key-fixture --fixture /tmp/dart-e1-fixture.json

dart run tool/interop.dart auth-fixture --scheme http > /tmp/dart-auth-http.json
(cd ../golang && go run ./cmd/anp-interop verify-auth-fixture --fixture /tmp/dart-auth-http.json)

dart run tool/interop.dart proof-fixture --case w3c-ed25519 > /tmp/dart-proof.json
(cd ../golang && go run ./cmd/anp-interop verify-proof-fixture --fixture /tmp/dart-proof.json)

dart run tool/interop.dart wns-fixture --handle alice.example.com > /tmp/dart-wns.json
(cd ../golang && go run ./cmd/anp-interop verify-wns-fixture --fixture /tmp/dart-wns.json)

Flutter smoke

cd example/flutter_smoke
flutter pub get
flutter test
flutter test --platform chrome

Android debug build smoke has been verified with a temporary Flutter app that path-depends on this package. iOS/macOS build smoke is not claimed unless full Xcode/CocoaPods setup is available.