add support for EXT coin

index.js

@@ -27,7 +27,7 @@ my.OUTPUT_LIST = ['hex', 'latin1', 'base64'] // or 'buf' to Buffer explicitly
 my.INPUT = 'utf8' // 默认的加密方法的明文格式。utf8 能够兼容 latin1, ascii 的情形
 my.INPUT_LIST = ['utf8', 'ascii', 'latin1'] // ignored for Buffer/TypedArray/DataView
 my.COIN = 'TIC' // 默认的币种
-my.COIN_LIST = ['TIC', 'BTC', 'ETH']
+my.COIN_LIST = ['TIC', 'EXT', 'BTC', 'ETH']
 
 /**
  *
@@ -432,6 +432,9 @@ class TICrypto {
           case 'ETH':
             key = hdmaster.derive("m/44'/60'/0'/0/0")
             break
+          case 'EXT':
+            key = hdmaster.derive("m/44'/60398'/0'/0/0")
+            break
           case 'TIC':
           default:
             key = hdmaster.derive("m/44'/60000'/0'/0/0")
@@ -478,10 +481,11 @@ class TICrypto {
         return `m/44'/0'/${path}`
       case 'ETH':
         return `m/44'/60'/${path}`
+      case 'EXT':
+        return `m/44'/60398'/${path}`
       case 'TIC':
-        return `m/44'/60000'/${path}`
       default:
-        return ''
+        return `m/44'/60000'/${path}`
     }
   }