diff --git a/Cake/Controller/Component/CookieComponent.php b/Cake/Controller/Component/CookieComponent.php
index 54458583ba6..694de688c3f 100644
--- a/Cake/Controller/Component/CookieComponent.php
+++ b/Cake/Controller/Component/CookieComponent.php
@@ -488,7 +488,7 @@ protected function _encrypt($value) {
 		if (is_array($value)) {
 			$value = $this->_implode($value);
 		}
-		if (!$this->_encrypted || !$value) {
+		if (!$this->_encrypted) {
 			return $value;
 		}
 		$prefix = "Q2FrZQ==.";
diff --git a/Cake/Test/TestCase/Controller/Component/CookieComponentTest.php b/Cake/Test/TestCase/Controller/Component/CookieComponentTest.php
index b9e3e3fb8f6..9319aaf8842 100644
--- a/Cake/Test/TestCase/Controller/Component/CookieComponentTest.php
+++ b/Cake/Test/TestCase/Controller/Component/CookieComponentTest.php
@@ -175,11 +175,11 @@ public function testWriteSimple() {
 	}
 
 /**
- * test write() Encrypted data with null & empty string & boolean value 
+ * test write() encrypted data with falsey value
  *
  * @return void
  */
-	public function testWriteWithNullEmptyString() {
+	public function testWriteWithFalseyValue() {
 		$this->Cookie->type('aes');
 		$this->Cookie->key = 'qSI232qs*&sXOw!adre@34SAv!@*(XSL#$%)asGb$@11~_+!@#HKis~#^';
 
@@ -201,7 +201,11 @@ public function testWriteWithNullEmptyString() {
 
 		$this->Cookie->write('Testing', '0');
 		$result = $this->Cookie->read('Testing');
-		$this->assertEquals('0', $result);
+		$this->assertSame('0', $result);
+
+		$this->Cookie->write('Testing', 0);
+		$result = $this->Cookie->read('Testing');
+		$this->assertSame(0, $result);
 	}
 
 /**
diff --git a/Cake/Test/TestCase/Utility/SecurityTest.php b/Cake/Test/TestCase/Utility/SecurityTest.php
index c62f3cd8511..f07debdd873 100644
--- a/Cake/Test/TestCase/Utility/SecurityTest.php
+++ b/Cake/Test/TestCase/Utility/SecurityTest.php
@@ -294,16 +294,27 @@ public function testEncryptInvalidKey() {
 	}
 
 /**
- * Test that empty data cause errors
+ * Test encrypting falsey data
  *
- * @expectedException Cake\Error\Exception
- * @expectedExceptionMessage The data to encrypt cannot be empty.
  * @return void
  */
-	public function testEncryptInvalidData() {
-		$txt = '';
+	public function testEncryptDecryptFalseyData() {
 		$key = 'This is a key that is long enough to be ok.';
-		Security::encrypt($txt, $key);
+
+		$result = Security::encrypt('', $key);
+		$this->assertSame('', Security::decrypt($result, $key));
+
+		$result = Security::encrypt(false, $key);
+		$this->assertSame('', Security::decrypt($result, $key));
+
+		$result = Security::encrypt(null, $key);
+		$this->assertSame('', Security::decrypt($result, $key));
+
+		$result = Security::encrypt(0, $key);
+		$this->assertSame('0', Security::decrypt($result, $key));
+
+		$result = Security::encrypt('0', $key);
+		$this->assertSame('0', Security::decrypt($result, $key));
 	}
 
 /**
diff --git a/Cake/Utility/Security.php b/Cake/Utility/Security.php
index fa985a30ae6..c3e16b31fda 100644
--- a/Cake/Utility/Security.php
+++ b/Cake/Utility/Security.php
@@ -238,9 +238,7 @@ protected static function _crypt($password, $salt = false) {
  */
 	public static function encrypt($plain, $key, $hmacSalt = null) {
 		self::_checkKey($key, 'encrypt()');
-		if (strlen($plain) === 0) {
-			throw new Error\Exception(__d('cake_dev', 'The data to encrypt cannot be empty.'));
-		}
+
 		if ($hmacSalt === null) {
 			$hmacSalt = Configure::read('Security.salt');
 		}