553de3a2b7
feat: interactive REPL with auto-setup, auto-join, encrypted local storage
...
REPL auto-setup (zero-friction startup):
- OnceLock → RwLock for CLIENT_AUTH to allow delayed init after OPAQUE login
- Extract opaque_register/opaque_login helpers from one-shot commands
- Token cache (.session file) with QPCE encryption when password provided
- Add --username/--password/--state-password to repl subcommand
- resolve_access_token: auto-register + login, cache token, prompt interactively
- rpassword for secure password input (no echo)
Interactive REPL (multi-conversation):
- SessionState: identity, hybrid key, ConversationStore, per-conversation GroupMembers
- ConversationStore: SQLite-backed conversations + messages with full CRUD
- Slash commands: /dm, /group, /invite, /join, /switch, /list, /members, /history, /whoami
- Background polling (1s interval) with auto-join from MLS Welcome messages
- pending_member pattern: persistent keystore for HPKE init key, replenish after join
- Self-DM handled as local-only notepad (no MLS/server channel)
- ANSI display module for colored prompts, incoming messages, status/error output
Username resolution:
- resolveIdentity RPC (@20 in node.capnp): look up username by identity key
- Server: resolve_identity_key in Store trait, FileBackedStore, SqlStore
- Client: resolve_identity in rpc.rs, used in auto-join for peer display names
- resolveUser: bidirectional lookup (username → identity key)
Encrypted local storage (nothing in cleartext):
- ConversationStore uses SQLCipher when --state-password is provided
- Argon2id key derivation with per-database random salt (.convdb-salt, mode 0600)
- Transparent migration of existing unencrypted databases via sqlcipher_export
- Token cache encrypted with QPCE format (Argon2id + ChaCha20Poly1305)
Server changes:
- resolveIdentity + resolveUser RPC handlers with auth + validation
- Auth: sealed-sender identity binding on enqueue, channel member authorization
- Delivery: hybrid decrypt attempts, identity key validation on enqueue
- Config: --allow-sealed-sender flag for anonymous delivery mode
- zeroize added to server dependencies
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-02-26 22:45:34 +01:00
750b794342
DM channels (createChannel), channel authz, security/docs, future improvements
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- Add createChannel RPC (node.capnp @18): create 1:1 channel, returns 16-byte channelId
- Store: create_channel(member_a, member_b), get_channel_members(channel_id)
- FileBackedStore: channels.bin; SqlStore: migration 003_channels, schema v4
- channel_ops: handle_create_channel (auth + identity, peerKey 32 bytes)
- Delivery authz: when channel_id.len() == 16, require caller and recipient are channel members (E022/E023)
- Error codes E022 CHANNEL_ACCESS_DENIED, E023 CHANNEL_NOT_FOUND
- SUMMARY: link Certificate lifecycle; security audit, future improvements, multi-agent plan docs
- Certificate lifecycle doc, SECURITY-AUDIT, FUTURE-IMPROVEMENTS, MULTI-AGENT-WORK-PLAN
- Client/core/tls/auth/server main: assorted fixes and updates from review and audit
Co-authored-by: Cursor <cursoragent@cursor.com >
2026-02-23 22:54:28 +01:00
6b8b61c6ae
feat: add delivery sequence numbers + major server/client refactor
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Delivery sequence numbers (MLS epoch ordering fix):
- schemas/node.capnp: add Envelope{seq,data} struct; enqueue returns seq:UInt64;
fetch/fetchWait return List(Envelope) instead of List(Data)
- storage.rs: Store trait enqueue returns u64; fetch/fetch_limited return
Vec<(u64, Vec<u8>)>; FileBackedStore gains QueueMapV3 with per-inbox seq
counters and V2→V3 on-disk migration
- migrations/002_add_seq.sql: seq column, delivery_seq_counters table, index
- sql_store.rs: atomic UPSERT counter via RETURNING, ORDER BY seq, SCHEMA_VERSION→3
- node_service/delivery.rs: builds Envelope list; returns seq from enqueue
- client/rpc.rs: enqueue→u64, fetch_all/fetch_wait→Vec<(u64,Vec<u8>)>
- client/commands.rs: sort-by-seq before MLS processing; retry loop in cmd_recv
and receive_pending_plaintexts for correct epoch ordering
Server refactor:
- Split monolithic main.rs into node_service/{mod,delivery,auth_ops,key_ops,p2p_ops}
- Add auth.rs (token validation, rate limiting), config.rs, metrics.rs, tls.rs
- Add SQL migrations runner (001_initial.sql, 002_add_seq.sql)
- OPAQUE PAKE login/registration, sealed-sender mode, queue depth limit (1000)
Client refactor:
- Split lib.rs into client/{commands,rpc,state,retry,hex,mod}
- Add cmd_whoami, cmd_health, cmd_check_key, cmd_ping subcommands
- Add cmd_register_user, cmd_login (OPAQUE), cmd_refresh_keypackage
- Hybrid PQ envelope (X25519 + ML-KEM-768) on all send/recv paths
- E2E test suite expanded
Other:
- quicnprotochat-gui: Tauri 2 desktop GUI skeleton (backend + HTML UI)
- quicnprotochat-p2p: iroh-based P2P transport stub
- quicnprotochat-core: app_message, hybrid_crypto modules; GroupMember API updates
- .github/workflows/size-lint.yml: binary size regression check
- docs: protocol comparison, roadmap updates, fully-operational checklist
2026-02-22 20:40:12 +01:00
00b0aa92a1
feat: add protocol comparison docs, P2P crate, production audit, and design fixes
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Add comprehensive documentation comparing quicnprotochat against classical
chat protocols (IRC+SSL, XMPP, Telegram) with diagrams and attack scenarios.
Promote comparison pages to top-level sidebar section. Include P2P transport
crate (iroh), production readiness audit, CI workflows, dependency policy,
and continued architecture improvements across all crates.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-02-22 12:15:44 +01:00
0bdc222724
fix: address 16 architecture design flaws across all crates
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Phase 1 — Foundation:
- Constant-time token comparison via subtle::ConstantTimeEq (Fix 11)
- Structured error codes E001–E020 in new error_codes.rs (Fix 15)
- Remove dead envelope.capnp code and related types (Fix 16)
Phase 2 — Auth Hardening:
- Registration collision check via has_user_record() (Fix 5)
- Auth required on uploadHybridKey/fetchHybridKey RPCs (Fix 1)
- Identity-token binding at registration and login (Fix 2)
- Session token expiry with 24h TTL and background reaper (Fix 3)
- Bounded pending logins with 5-minute timeout (Fix 4)
Phase 3 — Resource Limits:
- Rate limiting: 100 enqueues/60s per token (Fix 6)
- Queue depth cap at 1000 + 7-day message TTL/GC (Fix 7)
- Partial queue drain via limit param on fetch/fetchWait (Fix 8)
Phase 4 — Crypto Fixes:
- OPAQUE KSF switched from Identity to Argon2id (Fix 10)
- Random AEAD nonce in hybrid KEM instead of HKDF-derived (Fix 12)
- Zeroize secret fields in HybridKeypairBytes (Fix 13)
- Encrypted client state files via QPCE format (Fix 9)
Phase 5 — Protocol:
- Commit fan-out to all existing members on invite (Fix 14)
- Add member_identities() to GroupMember
Breaking: existing OPAQUE registrations invalidated (Argon2 KSF).
Schema: added auth to hybrid key ops, identityKey to OPAQUE finish
RPCs, limit to fetch/fetchWait.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-02-22 10:51:09 +01:00
8d5c1b3b9b
WIP: add OPAQUE password-authenticated key exchange
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Add opaque-ke (v4, ristretto255) for password-based registration and
login. Extend NodeService schema with opaqueRegisterStart/Finish and
opaqueLoginStart/Finish RPCs. Add Store trait methods for OPAQUE server
setup and user records. Initial e2e integration test scaffolding.
Note: FileBackedStore does not yet implement the new Store trait
methods — server compilation is temporarily broken.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-02-22 08:25:34 +01:00
f334ed3d43
feat: add post-quantum hybrid KEM + SQLCipher persistence
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Feature 1 — Post-Quantum Hybrid KEM (X25519 + ML-KEM-768):
- Create hybrid_kem.rs with keygen, encrypt, decrypt + 11 unit tests
- Wire format: version(1) | x25519_eph_pk(32) | mlkem_ct(1088) | nonce(12) | ct
- Add uploadHybridKey/fetchHybridKey RPCs to node.capnp schema
- Server: hybrid key storage in FileBackedStore + RPC handlers
- Client: hybrid keypair in StoredState, auto-wrap/unwrap in send/recv/invite/join
- demo-group runs full hybrid PQ envelope round-trip
Feature 2 — SQLCipher Persistence:
- Extract Store trait from FileBackedStore API
- Create SqlStore (rusqlite + bundled-sqlcipher) with encrypted-at-rest SQLite
- Schema: key_packages, deliveries, hybrid_keys tables with indexes
- Server CLI: --store-backend=sql, --db-path, --db-key flags
- 5 unit tests for SqlStore (FIFO, round-trip, upsert, channel isolation)
Also includes: client lib.rs refactor, auth config, TOML config file support,
mdBook documentation, and various cleanups by user.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-02-22 08:07:48 +01:00
d1ddef4cea
Add channel-aware delivery and update roadmap
2026-02-22 06:31:16 +01:00
3bf3ab23e2
Rename project to quicnprotochat
2026-02-21 23:37:40 +01:00
