diff options
Diffstat (limited to 'framework/Security')
| -rw-r--r-- | framework/Security/TSecurityManager.php | 58 |
1 files changed, 36 insertions, 22 deletions
diff --git a/framework/Security/TSecurityManager.php b/framework/Security/TSecurityManager.php index 46ad4575..b0ea4e95 100644 --- a/framework/Security/TSecurityManager.php +++ b/framework/Security/TSecurityManager.php @@ -43,8 +43,10 @@ class TSecurityManager extends TModule {
const STATE_VALIDATION_KEY='prado:securitymanager:validationkey';
const STATE_ENCRYPTION_KEY='prado:securitymanager:encryptionkey';
- private $_validationKey;
- private $_encryptionKey;
+ const STATE_INIT_VECTOR='prado:securitymanager:initvector';
+ private $_validationKey=null;
+ private $_encryptionKey=null;
+ private $_initVector=null;
private $_validation='SHA1';
private $_encryption='3DES';
@@ -63,19 +65,16 @@ class TSecurityManager extends TModule */
protected function generateRandomKey()
{
- $v1=rand();
- $v2=rand();
- $v3=rand();
- return md5("$v1$v2$v3");
+ return rand().rand().rand().rand();
}
/**
* @return string the private key used to generate HMAC.
- * If the key is not explicitly set, a random one is generated and used.
+ * If the key is not explicitly set, a random one is generated and returned.
*/
public function getValidationKey()
{
- if(empty($this->_validationKey))
+ if($this->_validationKey===null)
{
if(($this->_validationKey=$this->getApplication()->getGlobalState(self::STATE_VALIDATION_KEY))===null)
{
@@ -88,22 +87,23 @@ class TSecurityManager extends TModule /**
* @param string the key used to generate HMAC
- * @throws TInvalidDataValueException if the key is shorter than 8 characters.
+ * @throws TInvalidDataValueException if the key is empty
*/
public function setValidationKey($value)
{
- if(strlen($value)<8)
+ if($value!=='')
+ $this->_validationKey=$value;
+ else
throw new TInvalidDataValueException('securitymanager_validationkey_invalid');
- $this->_validationKey=$value;
}
/**
* @return string the private key used to encrypt/decrypt data.
- * If the key is not explicitly set, a random one is generated and used.
+ * If the key is not explicitly set, a random one is generated and returned.
*/
public function getEncryptionKey()
{
- if(empty($this->_encryptionKey))
+ if($this->_encryptionKey===null)
{
if(($this->_encryptionKey=$this->getApplication()->getGlobalState(self::STATE_ENCRYPTION_KEY))===null)
{
@@ -116,13 +116,14 @@ class TSecurityManager extends TModule /**
* @param string the key used to encrypt/decrypt data.
- * @throws TInvalidDataValueException if the key is shorter than 8 characters.
+ * @throws TInvalidDataValueException if the key is empty
*/
public function setEncryptionKey($value)
{
- if(strlen($value)<8)
+ if($value!=='')
+ $this->_encryptionKey=$value;
+ else
throw new TInvalidDataValueException('securitymanager_encryptionkey_invalid');
- $this->_encryptionKey=$value;
}
/**
@@ -167,7 +168,15 @@ class TSecurityManager extends TModule {
if(function_exists('mcrypt_encrypt'))
{
- return mcrypt_encrypt(MCRYPT_3DES, $this->getEncryptionKey(), $data, MCRYPT_MODE_CBC);
+ $module=mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_CBC, '');
+ $key=substr(md5($this->getEncryptionKey()),0,mcrypt_enc_get_key_size($module));
+ srand();
+ $iv=mcrypt_create_iv(mcrypt_enc_get_iv_size($module), MCRYPT_RAND);
+ mcrypt_generic_init($module,$key,$iv);
+ $encrypted=$iv.mcrypt_generic($module,$data);
+ mcrypt_generic_deinit($module);
+ mcrypt_module_close($module);
+ return $encrypted;
}
else
throw new TNotSupportedException('securitymanager_mcryptextension_required');
@@ -183,7 +192,15 @@ class TSecurityManager extends TModule {
if(function_exists('mcrypt_decrypt'))
{
- return mcrypt_decrypt(MCRYPT_3DES, $this->getEncryptionKey(), $data, MCRYPT_MODE_CBC);
+ $module=mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_CBC, '');
+ $key=substr(md5($this->getEncryptionKey()),0,mcrypt_enc_get_key_size($module));
+ $ivSize=mcrypt_enc_get_iv_size($module);
+ $iv=substr($data,0,$ivSize);
+ mcrypt_generic_init($module,$key,$iv);
+ $decrypted=mdecrypt_generic($module,substr($data,$ivSize));
+ mcrypt_generic_deinit($module);
+ mcrypt_module_close($module);
+ return rtrim($decrypted,"\0");
}
else
throw new TNotSupportedException('securitymanager_mcryptextension_required');
@@ -238,10 +255,7 @@ class TSecurityManager extends TModule $func='md5';
}
$key=$this->getValidationKey();
- if (strlen($key) > 64)
- $key = pack($pack, $func($key));
- if (strlen($key) < 64)
- $key = str_pad($key, 64, chr(0));
+ $key=str_pad($func($key), 64, chr(0));
return $func((str_repeat(chr(0x5C), 64) ^ substr($key, 0, 64)) . pack($pack, $func((str_repeat(chr(0x36), 64) ^ substr($key, 0, 64)) . $data)));
}
}
|