diff --git a/composer.lock b/composer.lock
index da993134..79f7f6ad 100644
--- a/composer.lock
+++ b/composer.lock
@@ -9,16 +9,16 @@
     "packages": [
         {
             "name": "danog/phpstruct",
-            "version": "1.1",
+            "version": "1.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/danog/PHPStruct.git",
-                "reference": "ac1d7a0b1eb54d5b10dca553be816c8fb0881e47"
+                "reference": "635b6a57a903b976c56c1283d00ee26b8a1b175d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/danog/PHPStruct/zipball/ac1d7a0b1eb54d5b10dca553be816c8fb0881e47",
-                "reference": "ac1d7a0b1eb54d5b10dca553be816c8fb0881e47",
+                "url": "https://api.github.com/repos/danog/PHPStruct/zipball/635b6a57a903b976c56c1283d00ee26b8a1b175d",
+                "reference": "635b6a57a903b976c56c1283d00ee26b8a1b175d",
                 "shasum": ""
             },
             "require": {
@@ -53,7 +53,7 @@
                 "struct",
                 "unpack"
             ],
-            "time": "2016-07-29 15:13:54"
+            "time": "2016-08-14 17:51:55"
         },
         {
             "name": "paragonie/constant_time_encoding",
diff --git a/src/danog/MadelineProto/RSA.php b/src/danog/MadelineProto/RSA.php
index 6cc69029..4996c9fa 100644
--- a/src/danog/MadelineProto/RSA.php
+++ b/src/danog/MadelineProto/RSA.php
@@ -18,7 +18,7 @@ class RSA extends TL\TL
     public $n; // phpseclib\Math\BigInteger class
     public $e; // phpseclib\Math\BigInteger class
     public $fp; // phpseclib\Math\BigInteger class
-    public $fp_float; // float
+    public $fp_bytes; // bytes
 
     public function __construct($key)
     {
@@ -27,8 +27,8 @@ class RSA extends TL\TL
         $this->n = $this->key->modulus;
         $this->e = $this->key->exponent;
 
-        $this->fp = new \phpseclib\Math\BigInteger(strrev(substr(sha1($this->serialize_param('bytes', $this->n->toBytes()).$this->serialize_param('bytes', $this->e->toBytes()), true), -8)), -256);
-        $this->fp_float = (float) $this->fp->toString();
+        $this->fp_bytes = substr(sha1($this->serialize_param('bytes', $this->n->toBytes()).$this->serialize_param('bytes', $this->e->toBytes()), true), -8);
+        $this->fp = new \phpseclib\Math\BigInteger(strrev($this->fp_bytes), -256);
     }
 
     public function encrypt($data)
diff --git a/src/danog/MadelineProto/Session.php b/src/danog/MadelineProto/Session.php
index 22a80253..af64736a 100644
--- a/src/danog/MadelineProto/Session.php
+++ b/src/danog/MadelineProto/Session.php
@@ -245,7 +245,8 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
             throw new Exception('Handshake: wrong nonce');
         }
         foreach ($ResPQ['server_public_key_fingerprints'] as $curfp) {
-            if ($curfp === $this->key->fp_float) {
+            $curfp_biginteger = new \phpseclib\Math\BigInteger($curfp);
+            if ($this->key->fp->equals($curfp_biginteger)) {
                 $public_key_fingerprint = $curfp;
                 break;
             }
@@ -284,7 +285,6 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
 
         // req_DH_params
         $this->log->log('Starting Diffie Hellman key exchange');
-
         $server_dh_params = $this->method_call('req_DH_params',
             [
                 'nonce'                  => $nonce,
diff --git a/src/danog/MadelineProto/TL/TL.php b/src/danog/MadelineProto/TL/TL.php
index afc870ca..3025c505 100644
--- a/src/danog/MadelineProto/TL/TL.php
+++ b/src/danog/MadelineProto/TL/TL.php
@@ -98,7 +98,6 @@ class TL
                 if (!is_numeric($value)) {
                     throw new Exception("serialize_param: given value isn't numeric");
                 }
-
                 return \danog\PHP\Struct::pack('<q', $value);
                 break;
             case 'int128':
@@ -167,10 +166,16 @@ class TL
                 if ($l == 254) {
                     $long_len = \danog\PHP\Struct::unpack('<I', fread($bytes_io, 3).\danog\MadelineProto\Tools::string2bin('\x00')) [0];
                     $x = fread($bytes_io, $long_len);
-                    fread($bytes_io, \danog\MadelineProto\Tools::posmod(-$long_len, 4));
+                    $resto = \danog\MadelineProto\Tools::posmod(-$long_len, 4);
+                    if ($resto > 0) {
+                        fread($bytes_io, $resto);
+                    }
                 } else {
                     $x = fread($bytes_io, $l);
-                    fread($bytes_io, \danog\MadelineProto\Tools::posmod(-($l + 1), 4));
+                    $resto = \danog\MadelineProto\Tools::posmod(-($l + 1), 4);
+                    if ($resto > 0) {
+                        fread($bytes_io, $resto);
+                    }
                 }
                 if (!is_string($x)) {
                     throw new Exception("deserialize: generated value isn't a string");