Merge pull request #7764 from BitGo/derek/SC-4611-support-msg-signing-for-flr-and-mon

feat: support message signing for FLR and MON

Author: benkelcher-bitgo

modules/account-lib/src/index.ts

@@ -346,6 +346,10 @@ const coinMessageBuilderFactoryMap = {
   tpolygon: Eth.MessageBuilderFactory,
   seievm: Eth.MessageBuilderFactory,
   tseievm: Eth.MessageBuilderFactory,
+  flr: Eth.MessageBuilderFactory,
+  tflr: Eth.MessageBuilderFactory,
+  mon: Eth.MessageBuilderFactory,
+  tmon: Eth.MessageBuilderFactory,
 };
 
 coins

modules/sdk-coin-flr/src/flr.ts

@@ -85,6 +85,16 @@ export class Flr extends AbstractEthLikeNewCoins {
     return 'ecdsa';
   }
 
+  /** @inheritDoc */
+  supportsMessageSigning(): boolean {
+    return true;
+  }
+
+  /** @inheritDoc */
+  supportsSigningTypedData(): boolean {
+    return true;
+  }
+
   protected async buildUnsignedSweepTxnTSS(params: RecoverOptions): Promise<OfflineVaultTxInfo | UnsignedSweepTxMPCv2> {
     return this.buildUnsignedSweepTxnMPCv2(params);
   }

modules/sdk-coin-mon/src/mon.ts

@@ -46,6 +46,16 @@ export class Mon extends AbstractEthLikeNewCoins {
     return 'ecdsa';
   }
 
+  /** @inheritDoc */
+  supportsMessageSigning(): boolean {
+    return true;
+  }
+
+  /** @inheritDoc */
+  supportsSigningTypedData(): boolean {
+    return true;
+  }
+
   protected async buildUnsignedSweepTxnTSS(params: RecoverOptions): Promise<OfflineVaultTxInfo | UnsignedSweepTxMPCv2> {
     return this.buildUnsignedSweepTxnMPCv2(params);
   }

modules/statics/src/allCoinsAndTokens.ts

@@ -1511,7 +1511,12 @@ export const allCoinsAndTokens = [
     18,
     UnderlyingAsset.MON,
     BaseUnit.ETH,
-    [...EVM_FEATURES, CoinFeature.SHARED_EVM_SIGNING, CoinFeature.SUPPORTS_ERC20]
+    [
+      ...EVM_FEATURES,
+      CoinFeature.SHARED_EVM_SIGNING,
+      CoinFeature.SHARED_EVM_MESSAGE_SIGNING,
+      CoinFeature.SUPPORTS_ERC20,
+    ]
   ),
   account(
     '5c5ebe50-fa27-4312-ae3d-7032520aedb5',
@@ -1525,6 +1530,7 @@ export const allCoinsAndTokens = [
       ...EVM_FEATURES,
       CoinFeature.SHARED_EVM_SIGNING,
       CoinFeature.SHARED_EVM_SDK,
+      CoinFeature.SHARED_EVM_MESSAGE_SIGNING,
       CoinFeature.EVM_UNSIGNED_SWEEP_RECOVERY,
       CoinFeature.EVM_NON_BITGO_RECOVERY,
       CoinFeature.SUPPORTS_ERC20,

modules/statics/src/coinFeatures.ts

@@ -706,6 +706,7 @@ export const FLR_FEATURES = [
   CoinFeature.MULTISIG_SUPPORT_GATED,
   CoinFeature.USES_NON_PACKED_ENCODING_FOR_TXDATA,
   CoinFeature.ERC20_BULK_TRANSACTION,
+  CoinFeature.SHARED_EVM_MESSAGE_SIGNING,
 ];
 
 export const WFLR_FEATURES = [...ACCOUNT_COIN_DEFAULT_FEATURES, CoinFeature.STABLECOIN, CoinFeature.STAKING];