diff --git a/lib/ecdsa.js b/lib/ecdsa.js
index ea62070..6e2a630 100644
--- a/lib/ecdsa.js
+++ b/lib/ecdsa.js
@@ -6,13 +6,14 @@ var Privkey = require('./privkey');
 var Pubkey = require('./pubkey');
 var Random = require('./random');
 
-var ECDSA = function ECDSA(hashbuf, key, sig, k) {
+var ECDSA = function ECDSA(hashbuf, key, sig, k, verified) {
   if (!(this instanceof ECDSA))
-    return new ECDSA(hashbuf, key, sig, k);
+    return new ECDSA(hashbuf, key, sig, k, verified);
   this.hashbuf = hashbuf;
   this.key = key;
   this.sig = sig;
   this.k = k;
+  this.verified = verified;
 };
 
 ECDSA.prototype.calci = function() {
diff --git a/lib/message.js b/lib/message.js
index bb36f11..4ecb13e 100644
--- a/lib/message.js
+++ b/lib/message.js
@@ -42,15 +42,13 @@ Message.prototype.sign = function() {
   return this;
 };
 
-/*
 Message.sign = function(messagebuf, key) {
   var m = Message(messagebuf, key);
-  var sig = m.sign();
-  var sigbuf = sig.toCompressed();
-  var base64 = sigbuf.toString('base64');
-  return base64;
+  m.sign();
+  var sigbuf = m.sig.toCompressed();
+  var sigstr = sigbuf.toString('base64');
+  return sigstr;
 };
-*/
 
 Message.prototype.verify = function() {
   var hashbuf = Message.magicHash(this.messagebuf);
diff --git a/test/test.message.js b/test/test.message.js
index 34f9063..82f19ba 100644
--- a/test/test.message.js
+++ b/test/test.message.js
@@ -46,4 +46,16 @@ describe('Message', function() {
 
   });
 
+  describe('@sign', function() {
+    var messagebuf = new Buffer('this is my message');
+    var key = Key().fromRandom();
+
+    it('should return a base64 string', function() {
+      var sigstr = Message.sign(messagebuf, key);
+      var sigbuf = new Buffer(sigstr, 'base64');
+      sigbuf.length.should.equal(1 + 32 + 32);
+    });
+
+  });
+
 });