diff --git a/build/code-sniffer-ruleset.xml b/build/code-sniffer-ruleset.xml
index a0a5fc8a..963c2892 100644
--- a/build/code-sniffer-ruleset.xml
+++ b/build/code-sniffer-ruleset.xml
@@ -45,6 +45,9 @@
  <!-- All code files MUST use only UTF-8 without BOM. -->
  <rule ref="Generic.Files.ByteOrderMark" />
 
+ <!-- Constructors MUST be called __construct() instead of after the class. -->
+ <rule ref="Generic.NamingConventions.ConstructorName" />
+
  <!-- Each file MUST end with exactly one newline character -->
  <rule ref="PSR2.Files.EndFileNewline" />
 
diff --git a/phpseclib/Crypt/AES.php b/phpseclib/Crypt/AES.php
index 14a0a627..9c4eee54 100644
--- a/phpseclib/Crypt/AES.php
+++ b/phpseclib/Crypt/AES.php
@@ -109,7 +109,7 @@ define('CRYPT_AES_MODE_OFB', CRYPT_MODE_OFB);
 
 /**#@+
  * @access private
- * @see Crypt_Base::Crypt_Base()
+ * @see Crypt_Base::__construct()
  */
 /**
  * Toggles the internal implementation
diff --git a/phpseclib/Crypt/Base.php b/phpseclib/Crypt/Base.php
index 83f46e3e..458ba198 100644
--- a/phpseclib/Crypt/Base.php
+++ b/phpseclib/Crypt/Base.php
@@ -98,7 +98,7 @@ define('CRYPT_MODE_STREAM', 5);
 
 /**#@+
  * @access private
- * @see Crypt_Base::Crypt_Base()
+ * @see Crypt_Base::__construct()
  */
 /**
  * Base value for the internal implementation $engine switch
@@ -123,7 +123,7 @@ class Crypt_Base
     /**
      * The Encryption Mode
      *
-     * @see Crypt_Base::Crypt_Base()
+     * @see Crypt_Base::__construct()
      * @var Integer
      * @access private
      */
@@ -312,7 +312,7 @@ class Crypt_Base
     /**
      * Is the mode one that is paddable?
      *
-     * @see Crypt_Base::Crypt_Base()
+     * @see Crypt_Base::__construct()
      * @var Boolean
      * @access private
      */
@@ -387,7 +387,7 @@ class Crypt_Base
      * $aes = new Crypt_AES(CRYPT_AES_MODE_CFB); // $aes will operate in cfb mode
      * $aes = new Crypt_AES(CRYPT_MODE_CFB);     // identical
      *
-     * @see Crypt_Base::Crypt_Base()
+     * @see Crypt_Base::__construct()
      * @var String
      * @access private
      */
@@ -443,7 +443,7 @@ class Crypt_Base
      * @param optional Integer $mode
      * @access public
      */
-    function Crypt_Base($mode = CRYPT_MODE_CBC)
+    function __construct($mode = CRYPT_MODE_CBC)
     {
         $const_crypt_mode = 'CRYPT_' . $this->const_namespace . '_MODE';
 
diff --git a/phpseclib/Crypt/Blowfish.php b/phpseclib/Crypt/Blowfish.php
index 90587ca0..4ca69adc 100644
--- a/phpseclib/Crypt/Blowfish.php
+++ b/phpseclib/Crypt/Blowfish.php
@@ -103,7 +103,7 @@ define('CRYPT_BLOWFISH_MODE_OFB', CRYPT_MODE_OFB);
 
 /**#@+
  * @access private
- * @see Crypt_Base::Crypt_Base()
+ * @see Crypt_Base::__construct()
  */
 /**
  * Toggles the internal implementation
diff --git a/phpseclib/Crypt/DES.php b/phpseclib/Crypt/DES.php
index 3334eb98..5a1b8227 100644
--- a/phpseclib/Crypt/DES.php
+++ b/phpseclib/Crypt/DES.php
@@ -123,7 +123,7 @@ define('CRYPT_DES_MODE_OFB', CRYPT_MODE_OFB);
 
 /**#@+
  * @access private
- * @see Crypt_Base::Crypt_Base()
+ * @see Crypt_Base::__construct()
  */
 /**
  * Toggles the internal implementation
diff --git a/phpseclib/Crypt/Hash.php b/phpseclib/Crypt/Hash.php
index 54606d85..7e18b8ed 100644
--- a/phpseclib/Crypt/Hash.php
+++ b/phpseclib/Crypt/Hash.php
@@ -58,7 +58,7 @@ use \phpseclib\Math\BigInteger;
 
 /**#@+
  * @access private
- * @see Crypt_Hash::Crypt_Hash()
+ * @see Crypt_Hash::__construct()
  */
 /**
  * Toggles the internal implementation
@@ -153,7 +153,7 @@ class Crypt_Hash
      * @return Crypt_Hash
      * @access public
      */
-    function Crypt_Hash($hash = 'sha1')
+    function __construct($hash = 'sha1')
     {
         if ( !defined('CRYPT_HASH_MODE') ) {
             switch (true) {
diff --git a/phpseclib/Crypt/RC2.php b/phpseclib/Crypt/RC2.php
index 96c9f18c..fcf39b0e 100644
--- a/phpseclib/Crypt/RC2.php
+++ b/phpseclib/Crypt/RC2.php
@@ -101,7 +101,7 @@ define('CRYPT_RC2_MODE_OFB', CRYPT_MODE_OFB);
 
 /**#@+
  * @access private
- * @see Crypt_RC2::Crypt_RC2()
+ * @see Crypt_RC2::__construct()
  */
 /**
  * Toggles the internal implementation
@@ -334,13 +334,13 @@ class Crypt_RC2 extends Crypt_Base
      *
      * If not explicitly set, CRYPT_RC2_MODE_CBC will be used.
      *
-     * @see Crypt_Base::Crypt_Base()
+     * @see Crypt_Base::__construct()
      * @param optional Integer $mode
      * @access public
      */
-    function Crypt_RC2($mode = CRYPT_RC2_MODE_CBC)
+    function __construct($mode = CRYPT_RC2_MODE_CBC)
     {
-        parent::Crypt_Base($mode);
+        parent::__construct($mode);
         $this->setKey('');
     }
 
diff --git a/phpseclib/Crypt/RC4.php b/phpseclib/Crypt/RC4.php
index 48807350..33ff8eb4 100644
--- a/phpseclib/Crypt/RC4.php
+++ b/phpseclib/Crypt/RC4.php
@@ -71,7 +71,7 @@ if (!class_exists('Crypt_Base')) {
 
 /**#@+
  * @access private
- * @see Crypt_RC4::Crypt_RC4()
+ * @see Crypt_RC4::__construct()
  */
 /**
  * Toggles the internal implementation
@@ -172,13 +172,13 @@ class Crypt_RC4 extends Crypt_Base
      *
      * Determines whether or not the mcrypt extension should be used.
      *
-     * @see Crypt_Base::Crypt_Base()
+     * @see Crypt_Base::__construct()
      * @return Crypt_RC4
      * @access public
      */
-    function Crypt_RC4()
+    function __construct()
     {
-        parent::Crypt_Base(CRYPT_MODE_STREAM);
+        parent::__construct(CRYPT_MODE_STREAM);
     }
 
     /**
diff --git a/phpseclib/Crypt/RSA.php b/phpseclib/Crypt/RSA.php
index 88647102..ff5eb17d 100644
--- a/phpseclib/Crypt/RSA.php
+++ b/phpseclib/Crypt/RSA.php
@@ -155,7 +155,7 @@ define('CRYPT_RSA_ASN1_SEQUENCE', 48);
 
 /**#@+
  * @access private
- * @see Crypt_RSA::Crypt_RSA()
+ * @see Crypt_RSA::__construct()
  */
 /**
  * To use the pure-PHP implementation
@@ -473,7 +473,7 @@ class Crypt_RSA
      * @return Crypt_RSA
      * @access public
      */
-    function Crypt_RSA()
+    function __construct()
     {
         $this->configFile = CRYPT_RSA_OPENSSL_CONFIG;
 
diff --git a/phpseclib/Crypt/Rijndael.php b/phpseclib/Crypt/Rijndael.php
index a43283f1..878c904e 100644
--- a/phpseclib/Crypt/Rijndael.php
+++ b/phpseclib/Crypt/Rijndael.php
@@ -120,7 +120,7 @@ define('CRYPT_RIJNDAEL_MODE_OFB', CRYPT_MODE_OFB);
 
 /**#@+
  * @access private
- * @see Crypt_Base::Crypt_Base()
+ * @see Crypt_Base::__construct()
  */
 /**
  * Toggles the internal implementation
diff --git a/phpseclib/Crypt/TripleDES.php b/phpseclib/Crypt/TripleDES.php
index 59c5f31a..0994408a 100644
--- a/phpseclib/Crypt/TripleDES.php
+++ b/phpseclib/Crypt/TripleDES.php
@@ -181,18 +181,18 @@ class Crypt_TripleDES extends Crypt_DES
      *
      * If not explicitly set, CRYPT_DES_MODE_CBC will be used.
      *
-     * @see Crypt_DES::Crypt_DES()
-     * @see Crypt_Base::Crypt_Base()
+     * @see Crypt_DES::__construct()
+     * @see Crypt_Base::__construct()
      * @param optional Integer $mode
      * @access public
      */
-    function Crypt_TripleDES($mode = CRYPT_DES_MODE_CBC)
+    function __construct($mode = CRYPT_DES_MODE_CBC)
     {
         switch ($mode) {
             // In case of CRYPT_DES_MODE_3CBC, we init as CRYPT_DES_MODE_CBC
             // and additional flag us internally as 3CBC
             case CRYPT_DES_MODE_3CBC:
-                parent::Crypt_DES(CRYPT_DES_MODE_CBC);
+                parent::__construct(CRYPT_DES_MODE_CBC);
                 $this->mode_3cbc = true;
 
                 // This three $des'es will do the 3CBC work (if $key > 64bits)
@@ -209,7 +209,7 @@ class Crypt_TripleDES extends Crypt_DES
                 break;
             // If not 3CBC, we init as usual
             default:
-                parent::Crypt_DES($mode);
+                parent::__construct($mode);
         }
     }
 
diff --git a/phpseclib/Crypt/Twofish.php b/phpseclib/Crypt/Twofish.php
index acd52c1c..183cf3ac 100644
--- a/phpseclib/Crypt/Twofish.php
+++ b/phpseclib/Crypt/Twofish.php
@@ -103,7 +103,7 @@ define('CRYPT_TWOFISH_MODE_OFB', CRYPT_MODE_OFB);
 
 /**#@+
  * @access private
- * @see Crypt_Base::Crypt_Base()
+ * @see Crypt_Base::__construct()
  */
 /**
  * Toggles the internal implementation
diff --git a/phpseclib/File/ANSI.php b/phpseclib/File/ANSI.php
index 682ba430..dc8e8eee 100644
--- a/phpseclib/File/ANSI.php
+++ b/phpseclib/File/ANSI.php
@@ -211,7 +211,7 @@ class File_ANSI
      * @return File_ANSI
      * @access public
      */
-    function File_ANSI()
+    function __construct()
     {
         $this->setHistory(200);
         $this->setDimensions(80, 24);
diff --git a/phpseclib/File/ASN1.php b/phpseclib/File/ASN1.php
index 8fe51018..659c8eb7 100644
--- a/phpseclib/File/ASN1.php
+++ b/phpseclib/File/ASN1.php
@@ -133,7 +133,7 @@ class File_ASN1_Element
      * @return File_ASN1_Element
      * @access public
      */
-    function File_ASN1_Element($encoded)
+    function __construct($encoded)
     {
         $this->element = $encoded;
     }
diff --git a/phpseclib/File/X509.php b/phpseclib/File/X509.php
index 74f1d7ae..9cac4eb6 100644
--- a/phpseclib/File/X509.php
+++ b/phpseclib/File/X509.php
@@ -313,7 +313,7 @@ class File_X509
      * @return File_X509
      * @access public
      */
-    function File_X509()
+    function __construct()
     {
         // Explicitly Tagged Module, 1988 Syntax
         // http://tools.ietf.org/html/rfc5280#appendix-A.1
diff --git a/phpseclib/Net/SCP.php b/phpseclib/Net/SCP.php
index 2796a355..762fbae2 100644
--- a/phpseclib/Net/SCP.php
+++ b/phpseclib/Net/SCP.php
@@ -122,7 +122,7 @@ class Net_SCP
      * @return Net_SCP
      * @access public
      */
-    function Net_SCP($ssh)
+    function __construct($ssh)
     {
         if (!is_object($ssh)) {
             return;
diff --git a/phpseclib/Net/SFTP.php b/phpseclib/Net/SFTP.php
index ecc277b9..52dc3585 100644
--- a/phpseclib/Net/SFTP.php
+++ b/phpseclib/Net/SFTP.php
@@ -124,7 +124,7 @@ class Net_SFTP extends Net_SSH2
     /**
      * Packet Types
      *
-     * @see Net_SFTP::Net_SFTP()
+     * @see Net_SFTP::__construct()
      * @var Array
      * @access private
      */
@@ -133,7 +133,7 @@ class Net_SFTP extends Net_SSH2
     /**
      * Status Codes
      *
-     * @see Net_SFTP::Net_SFTP()
+     * @see Net_SFTP::__construct()
      * @var Array
      * @access private
      */
@@ -245,7 +245,7 @@ class Net_SFTP extends Net_SSH2
     /**
      * Max SFTP Packet Size
      *
-     * @see Net_SFTP::Net_SFTP()
+     * @see Net_SFTP::__construct()
      * @see Net_SFTP::get()
      * @var Array
      * @access private
@@ -283,9 +283,9 @@ class Net_SFTP extends Net_SSH2
      * @return Net_SFTP
      * @access public
      */
-    function Net_SFTP($host, $port = 22, $timeout = 10)
+    function __construct($host, $port = 22, $timeout = 10)
     {
-        parent::Net_SSH2($host, $port, $timeout);
+        parent::__construct($host, $port, $timeout);
 
         $this->max_sftp_packet = 1 << 15;
 
diff --git a/phpseclib/Net/SFTP/Stream.php b/phpseclib/Net/SFTP/Stream.php
index 2f11abaa..e8bd23a1 100644
--- a/phpseclib/Net/SFTP/Stream.php
+++ b/phpseclib/Net/SFTP/Stream.php
@@ -131,7 +131,7 @@ class Net_SFTP_Stream
      *
      * @access public
      */
-    function Net_SFTP_Stream()
+    function __construct()
     {
         if (defined('NET_SFTP_STREAM_LOGGING')) {
             echo "__construct()\r\n";
diff --git a/phpseclib/Net/SSH1.php b/phpseclib/Net/SSH1.php
index d4fbdf06..511084cb 100644
--- a/phpseclib/Net/SSH1.php
+++ b/phpseclib/Net/SSH1.php
@@ -360,7 +360,7 @@ class Net_SSH1
     /**
      * Protocol Flags
      *
-     * @see Net_SSH1::Net_SSH1()
+     * @see Net_SSH1::__construct()
      * @var Array
      * @access private
      */
@@ -463,7 +463,7 @@ class Net_SSH1
     /**
      * Hostname
      *
-     * @see Net_SSH1::Net_SSH1()
+     * @see Net_SSH1::__construct()
      * @see Net_SSH1::_connect()
      * @var String
      * @access private
@@ -473,7 +473,7 @@ class Net_SSH1
     /**
      * Port Number
      *
-     * @see Net_SSH1::Net_SSH1()
+     * @see Net_SSH1::__construct()
      * @see Net_SSH1::_connect()
      * @var Integer
      * @access private
@@ -488,7 +488,7 @@ class Net_SSH1
      * however, is non-optional. There will be a timeout, whether or not you set it. If you don't it'll be
      * 10 seconds. It is used by fsockopen() in that function.
      *
-     * @see Net_SSH1::Net_SSH1()
+     * @see Net_SSH1::__construct()
      * @see Net_SSH1::_connect()
      * @var Integer
      * @access private
@@ -498,7 +498,7 @@ class Net_SSH1
     /**
      * Default cipher
      *
-     * @see Net_SSH1::Net_SSH1()
+     * @see Net_SSH1::__construct()
      * @see Net_SSH1::_connect()
      * @var Integer
      * @access private
@@ -517,7 +517,7 @@ class Net_SSH1
      * @return Net_SSH1
      * @access public
      */
-    function Net_SSH1($host, $port = 22, $timeout = 10, $cipher = NET_SSH1_CIPHER_3DES)
+    function __construct($host, $port = 22, $timeout = 10, $cipher = NET_SSH1_CIPHER_3DES)
     {
         // Include Crypt_Random
         // the class_exists() will only be called if the crypt_random_string function hasn't been defined and
@@ -1333,7 +1333,7 @@ class Net_SSH1
      * should be a number with the property that gcd($e, ($p - 1) * ($q - 1)) == 1.  Could just make anything that
      * calls this call modexp, instead, but I think this makes things clearer, maybe...
      *
-     * @see Net_SSH1::Net_SSH1()
+     * @see Net_SSH1::__construct()
      * @param Math_BigInteger $m
      * @param Array $key
      * @return Math_BigInteger
diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index 41dfdd46..ae230bc8 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -299,7 +299,7 @@ class Net_SSH2
      *
      *  -- http://tools.ietf.org/html/rfc4253#section-6
      *
-     * @see Net_SSH2::Net_SSH2()
+     * @see Net_SSH2::__construct()
      * @see Net_SSH2::_send_binary_packet()
      * @var Integer
      * @access private
@@ -309,7 +309,7 @@ class Net_SSH2
     /**
      * Block Size for Client to Server Encryption
      *
-     * @see Net_SSH2::Net_SSH2()
+     * @see Net_SSH2::__construct()
      * @see Net_SSH2::_get_binary_packet()
      * @var Integer
      * @access private
@@ -403,7 +403,7 @@ class Net_SSH2
     /**
      * Message Numbers
      *
-     * @see Net_SSH2::Net_SSH2()
+     * @see Net_SSH2::__construct()
      * @var Array
      * @access private
      */
@@ -412,7 +412,7 @@ class Net_SSH2
     /**
      * Disconnection Message 'reason codes' defined in RFC4253
      *
-     * @see Net_SSH2::Net_SSH2()
+     * @see Net_SSH2::__construct()
      * @var Array
      * @access private
      */
@@ -421,7 +421,7 @@ class Net_SSH2
     /**
      * SSH_MSG_CHANNEL_OPEN_FAILURE 'reason codes', defined in RFC4254
      *
-     * @see Net_SSH2::Net_SSH2()
+     * @see Net_SSH2::__construct()
      * @var Array
      * @access private
      */
@@ -431,7 +431,7 @@ class Net_SSH2
      * Terminal Modes
      *
      * @link http://tools.ietf.org/html/rfc4254#section-8
-     * @see Net_SSH2::Net_SSH2()
+     * @see Net_SSH2::__construct()
      * @var Array
      * @access private
      */
@@ -441,7 +441,7 @@ class Net_SSH2
      * SSH_MSG_CHANNEL_EXTENDED_DATA's data_type_codes
      *
      * @link http://tools.ietf.org/html/rfc4254#section-5.2
-     * @see Net_SSH2::Net_SSH2()
+     * @see Net_SSH2::__construct()
      * @var Array
      * @access private
      */
@@ -789,7 +789,7 @@ class Net_SSH2
     /**
      * Hostname
      *
-     * @see Net_SSH2::Net_SSH2()
+     * @see Net_SSH2::__construct()
      * @see Net_SSH2::_connect()
      * @var String
      * @access private
@@ -799,7 +799,7 @@ class Net_SSH2
     /**
      * Port Number
      *
-     * @see Net_SSH2::Net_SSH2()
+     * @see Net_SSH2::__construct()
      * @see Net_SSH2::_connect()
      * @var Integer
      * @access private
@@ -814,7 +814,7 @@ class Net_SSH2
      * however, is non-optional. There will be a timeout, whether or not you set it. If you don't it'll be
      * 10 seconds. It is used by fsockopen() and the initial stream_select in that function.
      *
-     * @see Net_SSH2::Net_SSH2()
+     * @see Net_SSH2::__construct()
      * @see Net_SSH2::_connect()
      * @var Integer
      * @access private
@@ -831,7 +831,7 @@ class Net_SSH2
      * @return Net_SSH2
      * @access public
      */
-    function Net_SSH2($host, $port = 22, $timeout = 10)
+    function __construct($host, $port = 22, $timeout = 10)
     {
         if (!function_exists('crypt_random_string')) {
             include_once 'Crypt/Random.php';
diff --git a/phpseclib/System/SSH/Agent.php b/phpseclib/System/SSH/Agent.php
index ead905fa..d4555111 100644
--- a/phpseclib/System/SSH/Agent.php
+++ b/phpseclib/System/SSH/Agent.php
@@ -115,7 +115,7 @@ class System_SSH_Agent_Identity
      * @return System_SSH_Agent_Identity
      * @access private
      */
-    function System_SSH_Agent_Identity($fsock)
+    function __construct($fsock)
     {
         $this->fsock = $fsock;
     }
@@ -231,7 +231,7 @@ class System_SSH_Agent
      * @return System_SSH_Agent
      * @access public
      */
-    function System_SSH_Agent()
+    function __construct()
     {
         switch (true) {
             case isset($_SERVER['SSH_AUTH_SOCK']):