Files
punktfunk/crates/punktfunk-android
enricobuehler b0df291ffe
apple / swift (push) Successful in 55s
ci / rust (push) Failing after 1m11s
ci / web (push) Successful in 28s
android / android (push) Failing after 1m55s
ci / docs-site (push) Successful in 33s
ci / bench (push) Successful in 1m45s
decky / build-publish (push) Successful in 12s
docker / build-push (--build-arg FEDORA_VERSION=44, ci, ci/fedora-rpm.Dockerfile, punktfunk-fedora44-rpm) (push) Successful in 6s
docker / build-push (., web/Dockerfile, punktfunk-web) (push) Successful in 4s
docker / build-push (ci, ci/fedora-rpm.Dockerfile, punktfunk-fedora-rpm) (push) Successful in 3s
docker / build-push (ci, ci/rust-ci.Dockerfile, punktfunk-rust-ci) (push) Successful in 4s
docker / build-push (docs-site, docs-site/Dockerfile, punktfunk-docs) (push) Successful in 4s
flatpak / build-publish (push) Failing after 2s
deb / build-publish (push) Failing after 2m43s
rpm / build-publish (bazzite, punktfunk-fedora-rpm) (push) Successful in 5m15s
rpm / build-publish (fedora-44, punktfunk-fedora44-rpm) (push) Successful in 5m9s
docker / deploy-docs (push) Successful in 18s
feat(android): pairing/identity — persistent identity, TOFU pinning, SPAKE2 PIN ceremony
M4 Android stage 1 (trust). The client now presents a persistent self-signed identity on
every connect, pins host certs trust-on-first-use, and runs the SPAKE2 PIN pairing
ceremony — parity with the Apple/Linux clients. The Rust connector already exposed this;
this wires it through the JNI + a Keystore-backed Kotlin store + the connect UI.

- crates/punktfunk-android: nativeGenerateIdentity (mint), nativeConnect gains
  certPem/keyPem/pinHex (identity + TOFU/pinned), nativeHostFingerprint, nativePair
  (SPAKE2). hex32/parse_hex32 helpers.
- kit/security: IdentityStore (AndroidKeyStore AES-256-GCM-wrapped PEM blob; StrongBox
  with TEE fallback; four-state load so a decrypt failure never shadow-mints), PinStore
  (host-id -> fp-hex in SharedPreferences). obtainIdentity mints once on genuine first run.
- app: ConnectScreen loads/mints the identity, looks up the stored pin, and gates connect
  on a trust decision — TOFU prompt (first connect), fingerprint-changed warning, PIN dialog.
- AndroidManifest: allowBackup=false (Keystore keys don't restore; a restored device
  re-mints rather than carrying a dead blob).

Verified live (emulator -> home-worker-2, synthetic m3-host):
- identity: host logs the presented client fingerprint; stable across an app restart.
- TOFU: first-connect prompt -> Trust -> pins the observed host fp -> pinned reconnect
  skips the prompt.
- SPAKE2: PIN ceremony -> "pairing complete — client trusted" -> auto-connect under
  --require-pairing; wrong PIN / host down -> "Pairing failed".

Known follow-up: trust is keyed by mDNS instance id for discovered hosts but by
"host:port" for manually-typed ones, so pairing via one path isn't recognized by the other.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-15 12:29:04 +02:00
..