diff --git a/README.md b/README.md
index f7659e0b..a904de5e 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # phpseclib - PHP Secure Communications Library
 
-[![Build Status](https://secure.travis-ci.org/phpseclib/phpseclib.png?branch=master)](http://travis-ci.org/phpseclib/phpseclib)
+[![Build Status](https://secure.travis-ci.org/phpseclib/phpseclib.png?branch=master)](http://travis-ci.org/phpseclib/phpseclib) [![Code Climate](https://codeclimate.com/github/phpseclib/phpseclib/badges/gpa.svg)](https://codeclimate.com/github/phpseclib/phpseclib)
 
 MIT-licensed pure-PHP implementations of an arbitrary-precision integer
 arithmetic library, fully PKCS#1 (v2.1) compliant RSA, DES, 3DES, RC4, Rijndael,
diff --git a/phpseclib/Crypt/RSA.php b/phpseclib/Crypt/RSA.php
index 3c420693..3146ca14 100644
--- a/phpseclib/Crypt/RSA.php
+++ b/phpseclib/Crypt/RSA.php
@@ -2567,7 +2567,7 @@ class Crypt_RSA
         // be output.
 
         $emLen = ($emBits + 1) >> 3; // ie. ceil($emBits / 8)
-        $sLen = $this->sLen == false ? $this->hLen : $this->sLen;
+        $sLen = $this->sLen === false ? $this->hLen : $this->sLen;
 
         $mHash = $this->hash->hash($m);
         if ($emLen < $this->hLen + $sLen + 2) {
@@ -2605,7 +2605,7 @@ class Crypt_RSA
         // be output.
 
         $emLen = ($emBits + 1) >> 3; // ie. ceil($emBits / 8);
-        $sLen = $this->sLen == false ? $this->hLen : $this->sLen;
+        $sLen = $this->sLen === false ? $this->hLen : $this->sLen;
 
         $mHash = $this->hash->hash($m);
         if ($emLen < $this->hLen + $sLen + 2) {
diff --git a/phpseclib/Net/SFTP/Stream.php b/phpseclib/Net/SFTP/Stream.php
index eda1cdba..7db29979 100644
--- a/phpseclib/Net/SFTP/Stream.php
+++ b/phpseclib/Net/SFTP/Stream.php
@@ -511,7 +511,7 @@ class Net_SFTP_Stream
 
         $path_from = $this->_parse_path($path_from);
         $path_to = parse_url($path_to);
-        if ($path_from == false) {
+        if ($path_from === false) {
             return false;
         }