fix: check outbound nonce against the key that signed, not the current TSS (F-2026-18827)

Author: Aman035

universalClient/tss/tss.go

@@ -239,28 +239,19 @@ func NewNode(ctx context.Context, cfg Config) (*Node, error) {
 		registeredPeers:            make(map[string]bool),
 	}
 
-	getTSSAddress := func(ctx context.Context) (string, error) {
-		if node.coordinator == nil {
-			return "", fmt.Errorf("coordinator not initialized")
-		}
-		return node.coordinator.GetTSSAddress(ctx)
-	}
-
 	node.txResolver = txresolver.NewResolver(txresolver.Config{
 		EventStore:    evtStore,
 		Chains:        cfg.Chains,
 		PushSigner:    cfg.PushSigner,
 		CheckInterval: sessionExpiryCheckInterval,
 		Logger:        logger,
-		GetTSSAddress: getTSSAddress,
 	})
 
 	node.txBroadcaster = txbroadcaster.NewBroadcaster(txbroadcaster.Config{
 		EventStore:    evtStore,
 		Chains:        cfg.Chains,
 		CheckInterval: sessionExpiryCheckInterval,
 		Logger:        logger,
-		GetTSSAddress: getTSSAddress,
 	})
 
 	node.expirySweeper = expirysweeper.NewSweeper(expirysweeper.Config{

universalClient/tss/txbroadcaster/broadcaster.go

@@ -18,15 +18,13 @@ type Config struct {
 	Chains        *chains.Chains
 	CheckInterval time.Duration
 	Logger        zerolog.Logger
-	GetTSSAddress func(ctx context.Context) (string, error)
 }
 
 type Broadcaster struct {
 	eventStore    *eventstore.Store
 	chains        *chains.Chains
 	checkInterval time.Duration
 	logger        zerolog.Logger
-	getTSSAddress func(ctx context.Context) (string, error)
 }
 
 func NewBroadcaster(cfg Config) *Broadcaster {
@@ -39,7 +37,6 @@ func NewBroadcaster(cfg Config) *Broadcaster {
 		chains:        cfg.Chains,
 		checkInterval: interval,
 		logger:        cfg.Logger.With().Str("component", "txbroadcaster").Logger(),
-		getTSSAddress: cfg.GetTSSAddress,
 	}
 }