diff --git a/lib/telegram.link.js b/lib/telegram.link.js
index 4e1c5aa..9edde02 100644
--- a/lib/telegram.link.js
+++ b/lib/telegram.link.js
@@ -103,6 +103,30 @@ function retrieveAuthKey(authKeyBuffer, authKeyPassword) {
     return mt.auth.AuthKey.decryptAuthKey(authKeyBuffer, authKeyPassword);
 }
 
+// ***
+// **Function:** telegramLink.**authKeyWithSaltToStorableBuffer(authKey, serverSalt)**
+
+// Concatenates the buffers to one long buffer which is returned and can be stored in a file.
+
+// The code:
+function authKeyWithSaltToStorableBuffer(authKey, serverSalt)
+{
+  return Buffer.concat([authKey.id, authKey.value, serverSalt], 272);
+}
+
+// ***
+// **Function:** telegramLink.**restoreAuthKeyWithSaltFromStorableBuffer(buffer)**
+
+// Splits the buffer into the needed pieces and returns it as an array.
+// returnedArray[0] ... authKey.id
+// returnedArray[1] ... authKey.value
+// returnedArray[2] ... serverSalt
+
+// The code:
+function restoreAuthKeyWithSaltFromStorableBuffer(buffer)
+{
+  return [buffer.slice(0,8), buffer.slice(8,264), buffer.slice(264,272)];
+}
 
 // ***
 // **Class:** telegramLink.**Client**
@@ -122,7 +146,11 @@ function Client(app, dataCenter) {
         this._connection = new mt.net.HttpConnection(dataCenter);
     }
 
-    if (app.authKey) {
+    if (app.authKey && app.serverSalt)
+    {
+      this._channel = createEncryptedChannel(this._connection, app, app.authKey, app.serverSalt);
+    }
+    else if (app.authKey) {
         this._channel = createEncryptedChannel(this._connection, app, app.authKey, NULL_SERVER_SALT);
     }
 
@@ -191,6 +219,16 @@ Client.prototype.createAuthKey = function (callback) {
     }
 };
 
+// ***
+// telegramLink.**newAuthKey(id, value)**
+
+// Creates a new AuthKey object with the given /id/ and /value/.
+
+// The code:
+function newAuthKey(id, value)
+{
+  return new mt.auth.AuthKey(id,value);
+}
 
 // ***
 // client.**getDataCenterList([callback])**
@@ -405,9 +443,12 @@ function connect() {
 // Export the internals.
 exports.createClient = createClient;
 exports.retrieveAuthKey = retrieveAuthKey;
+exports.authKeyWithSaltToStorableBuffer = authKeyWithSaltToStorableBuffer;
+exports.restoreAuthKeyWithSaltFromStorableBuffer = restoreAuthKeyWithSaltFromStorableBuffer;
+exports.newAuthKey = newAuthKey;
 var staticInfo = require('./static');
 exports.TEST_PRIMARY_DC = staticInfo.telegram.test.primaryDataCenter;
 exports.PROD_PRIMARY_DC = staticInfo.telegram.prod.primaryDataCenter;
 
 // Export all the API types. (no methods)
-exports.type = api.type;
\ No newline at end of file
+exports.type = api.type;