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4 Commits

Author SHA1 Message Date
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

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-12-05 08:44:05 -08:00
hailin 4f71018648 chore(mpc-system): update Go dependencies for K8s client-go 
Added Kubernetes client-go v0.29.0 dependencies via go mod tidy.
Required for dynamic party pool service discovery feature.

Dependencies added:
- k8s.io/apimachinery v0.29.0
- k8s.io/client-go v0.29.0
- google.golang.org/protobuf v1.31.0
- Related indirect dependencies (go-logr, gnostic-models, etc.)

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-12-05 06:21:46 -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)

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

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