diff --git a/lib/util.js b/lib/util.js
index 1ecdc3df..0fb6e6c7 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -265,34 +265,42 @@ For POW coins - used to format wallet address for use in generation transaction'
 //    return Buffer.concat([new Buffer([0x76, 0xa9, 0x14]), bitcoin.address.fromBase58Check(addr).hash, new Buffer([0x88, 0xac])]);
 //};
 
-exports.addressToScript = function (network, addr) {
-    if (addr[0] === "E") {
-
+ exports.addressToScript = function(network, addr){	 
+    if (addr[0] === "T") { // 添加P2SH钱包协议，T为TDC钱包首个字母
         var decoded = base58.decode(addr);
-
-        if (!decoded) {
+	    
+        if (decoded.length != 25){
+            console.error('invalid address length for ' + addr);
+            throw new Error();
+        }
+	    
+        if (!decoded){
             console.error('base58 decode failed for ' + addr);
             throw new Error();
         }
-
-        var pubkey = decoded.slice(1, -4);
-
-        return Buffer.concat([Buffer.from([0x76, 0xa9, 0x14]), pubkey, Buffer.from([0x88, 0xac])]);
-    }
-    if (addr[0] === "T") {
-
+	    
+        var pubkey = decoded.slice(1,-4);
+	    
+        return Buffer.concat([new Buffer([0xa9, 0x14]), pubkey, new Buffer([0x87])]);
+   } 
+   if (addr[0] === "D") { // 添加P2PK钱包协议，D为DYN钱包首个字母
         var decoded = base58.decode(addr);
-
-        if (!decoded) {
+	    
+        if (decoded.length != 25){
+            console.error('invalid address length for ' + addr);
+            throw new Error();
+        }
+	    
+        if (!decoded){
             console.error('base58 decode failed for ' + addr);
             throw new Error();
         }
-
-        var pubkey = decoded.slice(1, -4);
-
-        return Buffer.concat([Buffer.from([0xa9, 0x14]), pubkey, Buffer.from([0x87])]);
-    }
-    return exports.uint256BufferFromHash(script);
+	    
+        var pubkey = decoded.slice(1,-4);
+	    
+        return Buffer.concat([new Buffer([0x76, 0xa9, 0x14]), pubkey, new Buffer([0x88, 0xac])]);
+    }  	 
+    return exports.uint256BufferFromHash(script);   
 };
 
 exports.kotoAddressToScript = function (addr) {
@@ -494,4 +502,4 @@ exports.getKotoFounderRewardScript = function (addr) {
     var pubkey = decoded.slice(decoded.length - 24, -4);
 
     return Buffer.concat([Buffer.from([0xa9, 0x14]), pubkey, Buffer.from([0x87])]);
-}
\ No newline at end of file
+}