7 files changed, 606 insertions, 0 deletions
diff --git a/phpBB/phpbb/crypto/driver/base.php b/phpBB/phpbb/crypto/driver/base.php
new file mode 100644
index 0000000000..c134122174
--- /dev/null
+++ b/phpBB/phpbb/crypto/driver/base.php
@@ -0,0 +1,47 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* @package crypto
+*/
+abstract class phpbb_crypto_driver_base implements phpbb_crypto_driver_interface
+{
+	/** @var phpbb_config */
+	protected $config;
+
+	/** @var phpbb_crypto_driver_helper */
+	protected $helper;
+
+	/**
+	* Constructor of crypto driver object
+	*
+	* @return string	Hash prefix
+	*/
+	public function __construct(phpbb_config $config)
+	{
+		$this->config = $config;
+		$this->helper = new phpbb_crypto_driver_helper($this);
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function is_supported()
+	{
+		return true;
+	}
+}
diff --git a/phpBB/phpbb/crypto/driver/bcrypt.php b/phpBB/phpbb/crypto/driver/bcrypt.php
new file mode 100644
index 0000000000..ad5a8036c3
--- /dev/null
+++ b/phpBB/phpbb/crypto/driver/bcrypt.php
@@ -0,0 +1,108 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* @package crypto
+*/
+class phpbb_crypto_driver_bcrypt extends phpbb_crypto_driver_base
+{
+	const PREFIX = '$2a$';
+
+	/**
+	* @inheritdoc
+	*/
+	public function get_prefix()
+	{
+		return self::PREFIX;
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function get_type()
+	{
+		return get_class($this);
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function hash($password, $salt = '')
+	{
+		// The 2x and 2y prefixes of bcrypt might not be supported
+		// Revert to 2a if this is the case
+		$prefix = (!$this->is_supported()) ? '$2a$' : $this->get_prefix();
+
+		if ($salt == '')
+		{
+			$salt = $prefix . '10$' . $this->get_random_salt();
+		}
+
+		$hash = crypt($password, $salt);
+		if (strlen($hash) < 60)
+		{
+			return false;
+		}
+		return $hash;
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function check($password, $hash)
+	{
+		$salt = substr($hash, 0, 29);
+		if (strlen($salt) != 29)
+		{
+			return false;
+		}
+
+		if ($hash == $this->hash($password, $salt))
+		{
+			return true;
+		}
+		return false;
+	}
+
+	/**
+	* Get a random salt value with a length of 22 characters
+	*
+	* @return string Salt for password hashing
+	*/
+	protected function get_random_salt()
+	{
+		return $this->helper->hash_encode64($this->helper->get_random_salt(22), 22);
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function get_settings_only($hash, $full = false)
+	{
+		if ($full)
+		{
+			$pos = stripos($hash, '$', 1) + 1;
+			$length = 22 + (strripos($hash, '$') + 1 - $pos);
+		}
+		else
+		{
+			$pos = strripos($hash, '$') + 1;
+			$length = 22;
+		}
+		return substr($hash, $pos, $length);
+	}
+}
diff --git a/phpBB/phpbb/crypto/driver/bcrypt_2y.php b/phpBB/phpbb/crypto/driver/bcrypt_2y.php
new file mode 100644
index 0000000000..8bce171a25
--- /dev/null
+++ b/phpBB/phpbb/crypto/driver/bcrypt_2y.php
@@ -0,0 +1,48 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* @package crypto
+*/
+class phpbb_crypto_driver_bcrypt_2y extends phpbb_crypto_driver_bcrypt
+{
+	const PREFIX = '$2y$';
+
+	/**
+	* @inheritdoc
+	*/
+	public function get_prefix()
+	{
+		return self::PREFIX;
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function get_type()
+	{
+		return get_class($this);
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function is_supported()
+	{
+		return (version_compare(PHP_VERSION, '5.3.7', '<')) ? false : true;
+	}
+}
diff --git a/phpBB/phpbb/crypto/driver/helper.php b/phpBB/phpbb/crypto/driver/helper.php
new file mode 100644
index 0000000000..308ee7dce2
--- /dev/null
+++ b/phpBB/phpbb/crypto/driver/helper.php
@@ -0,0 +1,143 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* @package crypto
+*/
+class phpbb_crypto_driver_helper
+{
+	/** @var phpbb_config */
+	protected $driver;
+
+	/**
+	* base64 alphabet
+	* @var string
+	*/
+	public $itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
+
+	/**
+	* Constructor of crypto driver helper object
+	*/
+	public function __construct($driver)
+	{
+		$this->driver = $driver;
+	}
+
+	/**
+	* Base64 encode hash
+	*
+	* @param string $input Input string
+	* @param int $count Input string length
+	*
+	* @return string base64 encoded string
+	*/
+	public function hash_encode64($input, $count)
+	{
+		$output = '';
+		$i = 0;
+
+		do
+		{
+			$value = ord($input[$i++]);
+			$output .= $this->itoa64[$value & 0x3f];
+
+			if ($i < $count)
+			{
+				$value |= ord($input[$i]) << 8;
+			}
+
+			$output .= $this->itoa64[($value >> 6) & 0x3f];
+
+			if ($i++ >= $count)
+			{
+				break;
+			}
+
+			if ($i < $count)
+			{
+				$value |= ord($input[$i]) << 16;
+			}
+
+			$output .= $this->itoa64[($value >> 12) & 0x3f];
+
+			if ($i++ >= $count)
+			{
+				break;
+			}
+
+			$output .= $this->itoa64[($value >> 18) & 0x3f];
+		}
+		while ($i < $count);
+
+		return $output;
+	}
+
+	/**
+	* Return unique id
+	* @param string $extra additional entropy
+	*
+	* @return string Unique id
+	*/
+	public function unique_id($extra = 'c')
+	{
+		static $dss_seeded = false;
+		global $config;
+
+		$val = $config['rand_seed'] . microtime();
+		$val = md5($val);
+		$config['rand_seed'] = md5($config['rand_seed'] . $val . $extra);
+
+		if ($dss_seeded !== true && ($config['rand_seed_last_update'] < time() - rand(1,10)))
+		{
+			set_config('rand_seed_last_update', time(), true);
+			set_config('rand_seed', $config['rand_seed'], true);
+			$dss_seeded = true;
+		}
+
+		return substr($val, 4, 16);
+	}
+
+	/**
+	* Get random salt with specified length
+	*
+	* @param int $length Salt length
+	*/
+	public function get_random_salt($length)
+	{
+		$random = '';
+
+		if (($fh = @fopen('/dev/urandom', 'rb')))
+		{
+			$random = fread($fh, $length);
+			fclose($fh);
+		}
+
+		if (strlen($random) < $length)
+		{
+			$random = '';
+			$random_state = $this->unique_id();
+
+			for ($i = 0; $i < $length; $i += 16)
+			{
+				$random_state = md5($this->unique_id() . $random_state);
+				$random .= pack('H*', md5($random_state));
+			}
+			$random = substr($random, 0, $length);
+		}
+		return $random;
+	}
+}
diff --git a/phpBB/phpbb/crypto/driver/interface.php b/phpBB/phpbb/crypto/driver/interface.php
new file mode 100644
index 0000000000..9686aa33de
--- /dev/null
+++ b/phpBB/phpbb/crypto/driver/interface.php
@@ -0,0 +1,68 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* @package crypto
+*/
+interface phpbb_crypto_driver_interface
+{
+	/**
+	* Check if hash type is supported
+	*
+	* @return bool		True if supported, false if not
+	*/
+	public function is_supported();
+	/**
+	* Returns the hash prefix
+	*
+	* @return string	Hash prefix
+	*/
+	public function get_prefix();
+
+	/**
+	* Returns the name of the hash type
+	*
+	* @return string	Hash type of driver
+	*/
+	public function get_type();
+
+	/**
+	* Hash the password
+	*
+	* @return string	Password hash
+	*/
+	public function hash($password);
+
+	/**
+	* Check the password against the supplied hash
+	*
+	* @param string		$password The password to check
+	* @param string		$hash The password hash to check against
+	* @return bool		True if password is correct, else false
+	*/
+	public function check($password, $hash);
+
+	/**
+	* Get only the settings of the specified hash
+	*
+	* @param string		$hash Password hash
+	* @param bool		$full Return full settings or only settings
+	*			related to the salt
+	* @return string	String containing the hash settings
+	*/
+	public function get_settings_only($hash, $full = false);
+}
diff --git a/phpBB/phpbb/crypto/driver/phpass.php b/phpBB/phpbb/crypto/driver/phpass.php
new file mode 100644
index 0000000000..4868464d73
--- /dev/null
+++ b/phpBB/phpbb/crypto/driver/phpass.php
@@ -0,0 +1,40 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* @package crypto
+*/
+class phpbb_crypto_driver_phpass extends phpbb_crypto_driver_salted_md5
+{
+	const PREFIX = '$P$';
+
+	/**
+	* @inheritdoc
+	*/
+	public function get_prefix()
+	{
+		return self::PREFIX;
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function get_type()
+	{
+		return get_class($this);
+	}
+}
diff --git a/phpBB/phpbb/crypto/driver/salted_md5.php b/phpBB/phpbb/crypto/driver/salted_md5.php
new file mode 100644
index 0000000000..c5a8345453
--- /dev/null
+++ b/phpBB/phpbb/crypto/driver/salted_md5.php
@@ -0,0 +1,152 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* @package crypto
+*/
+class phpbb_crypto_driver_salted_md5 extends phpbb_crypto_driver_base
+{
+	const PREFIX = '$H$';
+
+	/**
+	* @inheritdoc
+	*/
+	public function get_prefix()
+	{
+		return self::PREFIX;
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function get_type()
+	{
+		return get_class($this);
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function hash($password, $setting = '')
+	{
+		if ($setting != '')
+		{
+			if (($settings = $this->get_hash_settings($setting)) === false)
+			{
+				return false;
+			}
+		}
+		else
+		{
+			if (($settings = $this->get_hash_settings($this->generate_salt())) === false)
+			{
+				return false;
+			}
+		}
+
+		$hash = md5($settings['salt'] . $password, true);
+		do
+		{
+			$hash = md5($hash . $password, true);
+		}
+		while (--$settings['count']);
+
+		$output = $settings['full'];
+		$output .= $this->helper->hash_encode64($hash, 16);
+
+		if (strlen($output) == 34)
+		{
+			return $output;
+		}
+
+		// Should we really just return the md5 of the password? O.o
+		return md5($password);
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function check($password, $hash)
+	{
+		if (strlen($hash) !== 34)
+		{
+			return (md5($password) === $hash) ? true : false;
+		}
+		// No need to check prefix, already did that in manage
+
+		if ($hash === $this->hash($password, $hash))
+		{
+			return true;
+		}
+		return false;
+	}
+
+	/**
+	* Generate salt for hashing method
+	*
+	* @return string Salt for hashing method
+	*/
+	protected function generate_salt()
+	{
+		$salt = '';
+		$random = '';
+		$count = 6;
+
+		$random = $this->helper->get_random_salt($count);
+
+		$salt = $this->get_prefix();
+		$salt .= $this->helper->itoa64[min($count + 5, 30)];
+		$salt .= $this->helper->hash_encode64($random, $count);
+
+		return $salt;
+	}
+
+	/**
+	* Get hash settings
+	*
+	* @return array Array containing the count_log2, salt, and full hash
+	*		settings string
+	*/
+	public function get_hash_settings($hash)
+	{
+		if (empty($hash))
+		{
+			return false;
+		}
+		$count_log2 = strpos($this->helper->itoa64, $hash[3]);
+		$salt = substr($hash, 4, 8);
+
+		if ($count_log2 < 7 || $count_log2 > 30 || strlen($salt) != 8)
+		{
+			return false;
+		}
+
+		return array(
+			'count'	=> 1 << $count_log2,
+			'salt'	=> $salt,
+			'full'	=> substr($hash, 0, 12),
+		);
+	}
+
+	/**
+	* @inheritdoc
+	*/
+	public function get_settings_only($hash, $full = false)
+	{
+		return substr($hash, 3, 9);
+	}
+}