diff --git a/http-digest-client.js b/http-digest-client.js
index 9d91133..a39f110 100644
--- a/http-digest-client.js
+++ b/http-digest-client.js
@@ -79,11 +79,13 @@ var HTTPDigest = function () {
       authParams.nc = nc;
       authParams.cnonce = cnonce;
     }
-
+    
+    authParams.algorithm='MD5';
+    
     var headers = options.headers || {};
     headers.Authorization = this._compileParams(authParams);
     options.headers = headers;
-
+    
     http.request(options, function (res) {
       callback(res);
     }).end();
@@ -99,12 +101,11 @@ var HTTPDigest = function () {
     var length = parts.length;
     var params = {};
     for (var i = 0; i < length; i++) {
-      var part = parts[i].match(/^\s*?([a-zA-Z0-0]+)="(.*)"\s*?$/);
+      var part = parts[i].match(/^\s*?([a-zA-Z0-0]+)="?(.*)"?\s*?$/);
       if (part.length > 2) {
-        params[part[1]] = part[2];
+        params[part[1]] = part[2].replace('"','');
       }
     }
-
     return params;
   };
 
@@ -114,9 +115,14 @@ var HTTPDigest = function () {
   HTTPDigest.prototype._compileParams = function compileParams(params) {
     var parts = [];
     for (var i in params) {
-      parts.push(i + '="' + params[i] + '"');
+      if(i === 'nc'){
+        parts.push(i + '=' + params[i]);
+      }else{
+        parts.push(i + '="' + params[i] + '"');
+      }
+        
     }
-    return 'Digest ' + parts.join(',');
+    return 'Digest ' + parts.join(', ');
   };
 
   //