Commit Graph

9 Commits

Author SHA1 Message Date
hailin 450163a94d fix(context): use parent context instead of Background() to allow proper cancellation
- Fixed delegate party event handler to use parent context with timeout
- Fixed message acknowledgment to use parent context
- Prevents orphan goroutines when session fails or party exits
- Resolves system crash after delegate party failure
2025-12-06 06:36:34 -08:00
hailin b51d5687b2 fix(server-party): include self in participants list for keygen
The JoinSession response contains OtherParties (excluding self) and
PartyIndex (self's index). The participants list passed to TSS keygen
must include all parties including self, otherwise validation fails
with "invalid party count" error.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-06 00:01:14 -08:00
hailin aa74e2b2e2 feat(mpc-system): add signing parties configuration and delegate signing support
- Add signing-config API endpoints (POST/PUT/DELETE/GET) for configuring
  which parties should participate in signing operations
- Add SigningParties field to Account entity with database migration
- Modify CreateSigningSession to use configured parties if set,
  otherwise use all active parties (backward compatible)
- Add delegate party signing support: user provides encrypted share
  at sign time for delegate party to use
- Update protobuf definitions for DelegateUserShare in session events
- Add ShareTypeDelegate to support hybrid custody model

API endpoints:
- POST /accounts/:id/signing-config - Set signing parties (first time)
- PUT /accounts/:id/signing-config - Update signing parties
- DELETE /accounts/:id/signing-config - Clear config (use all parties)
- GET /accounts/:id/signing-config - Get current configuration

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-05 22:47:55 -08:00
hailin 135e821386 feat(mpc-system): integrate reliability mechanisms and enable party-driven architecture
- Enable SubscribeSessionEvents for automatic session participation
- Integrate heartbeat mechanism with pending message count
- Add ACK sending after message receipt for reliable delivery
- Add party activity tracking in session coordinator
- Add CountPendingByParty for heartbeat response
- Add retry package with exponential backoff for gRPC clients
- Add memory-based message broker and event publisher adapters
- Add account service integration for keygen completion
- Add party timeout checking background job
- Add notification service stub for future implementation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-05 20:30:03 -08:00
hailin c976fd3eb1 feat(mpc-system): implement party-driven architecture with SessionEvent broadcasting
Fully implemented party-driven architecture according to international standards (Fireblocks, ING Bank, ZenGo patterns):

**Architecture Changes:**
- Parties actively connect to Message Router (not passively called by coordinator)
- Session Coordinator publishes SessionEvents when creating sessions
- Parties automatically subscribe and respond to SessionEvents
- PartyID-based routing instead of network addresses

**New Features:**
1. Session Coordinator → Message Router gRPC Client
   - PublishSessionEvent RPC for broadcasting session lifecycle events
   - Automatic event publishing after session creation

2. Message Router SessionEvent Broadcasting
   - SubscribeSessionEvents RPC for party subscriptions
   - PublishSessionEvent RPC for coordinator publishing
   - Targeted broadcasting to selected parties

3. Server-Party Auto-Registration & Subscription
   - RegisterParty on startup with role (persistent/delegate/temporary)
   - SubscribeSessionEvents for automatic session notifications
   - Event handler for automatic MPC participation

**Files Modified:**
- api/proto/message_router.proto: Added SessionEvent messages and RPCs
- services/message-router/adapters/input/grpc/message_grpc_handler.go: PublishSessionEvent handler
- services/session-coordinator/adapters/output/grpc/message_router_client.go: NEW - gRPC client
- services/session-coordinator/application/use_cases/create_session.go: SessionEvent publishing
- services/session-coordinator/cmd/server/main.go: Message Router client initialization
- services/server-party/adapters/output/grpc/message_router_client.go: RegisterParty + SubscribeSessionEvents
- services/server-party/cmd/server/main.go: Party registration and event subscription (commented pending full integration)
- go.mod/go.sum: Updated grpc to v1.77.0

**Technical Details:**
- gRPC streaming for SessionEvent subscriptions
- Non-blocking channel broadcasts prevent slow subscribers from blocking
- PartyRole support (persistent/delegate/temporary)
- Join tokens distributed via SessionEvent

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-05 08:44:05 -08:00
hailin 747e4ae8ef refactor(mpc-system): migrate to party-driven architecture with PartyID-based routing
- Remove Address field from PartyEndpoint (parties connect to router themselves)
- Update K8s Discovery to only manage PartyID and Role labels
- Add Party registration and SessionEvent protobuf definitions
- Implement PartyRegistry and SessionEventBroadcaster domain logic
- Add RegisterParty and SubscribeSessionEvents gRPC handlers
- Prepare infrastructure for party-driven MPC coordination

This is the first phase of migrating from coordinator-driven to party-driven
architecture following international MPC system design patterns.
2025-12-05 08:11:28 -08:00
hailin 553ffd365e feat(mpc-system): optimize party index handling and add gRPC debug logs
- Simplified participant list handling in JoinSession client
- Added debug logging for party_index conversion in gRPC messages
- Removed redundant party filtering logic
- Added detailed logging to trace protobuf field values

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-05 04:00:09 -08:00
Developer 79ccdd7116 feat: Complete MPC TSS implementation with t-of-n threshold signing
Major changes:
- Add TSS core library (pkg/tss) with keygen and signing protocols
- Implement gRPC clients for Server Party service
- Add MPC session endpoints to Account service
- Deploy 3 Server Party instances in docker-compose
- Add MarkPartyReady and StartSession to proto definitions
- Complete integration tests for 2-of-3, 3-of-5, 4-of-7 thresholds
- Add comprehensive documentation (architecture, API, testing, deployment)

Test results:
- 2-of-3: PASSED (keygen 93s, signing 80s)
- 3-of-5: PASSED (keygen 198s, signing 120s)
- 4-of-7: PASSED (keygen 221s, signing 150s)

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-29 06:57:53 -08:00
Developer 393c0ef04d > 2025-11-29 01:35:10 -08:00