|  | @@ -26,216 +26,227 @@
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				|  |  |  # requirements (there can be none), but merely suggestions.
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				|  |  |  #
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				|  |  |  
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				|  |  | -class PasswordHash {
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				|  |  | +class PasswordHash
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				|  |  | +{
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				|  |  |  
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				|  |  |      var $itoa64;
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				|  |  |      var $iteration_count_log2;
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				|  |  |      var $portable_hashes;
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				|  |  |      var $random_state;
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				|  |  |  
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				|  |  | -    function PasswordHash($iteration_count_log2, $portable_hashes) {
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				|  |  | -	$this->itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
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				|  |  | +    function __construct($iteration_count_log2, $portable_hashes)
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				|  |  | +    {
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				|  |  | +        $this->itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
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				|  |  |  
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				|  |  | -	if ($iteration_count_log2 < 4 || $iteration_count_log2 > 31)
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				|  |  | -	    $iteration_count_log2 = 8;
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				|  |  | -	$this->iteration_count_log2 = $iteration_count_log2;
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				|  |  | +        if ($iteration_count_log2 < 4 || $iteration_count_log2 > 31)
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				|  |  | +            $iteration_count_log2 = 8;
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				|  |  | +        $this->iteration_count_log2 = $iteration_count_log2;
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				|  |  |  
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				|  |  | -	$this->portable_hashes = $portable_hashes;
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				|  |  | +        $this->portable_hashes = $portable_hashes;
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				|  |  |  
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				|  |  | -	$this->random_state = microtime();
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				|  |  | -	if (function_exists('getmypid'))
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				|  |  | -	    $this->random_state .= getmypid();
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				|  |  | +        $this->random_state = microtime();
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				|  |  | +        if (function_exists('getmypid'))
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				|  |  | +            $this->random_state .= getmypid();
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				|  |  |      }
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				|  |  |  
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				|  |  | -    function get_random_bytes($count) {
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				|  |  | -	$output = '';
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				|  |  | -	if (is_readable('/dev/urandom') &&
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				|  |  | -		($fh = @fopen('/dev/urandom', 'rb'))) {
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				|  |  | -	    $output = fread($fh, $count);
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				|  |  | -	    fclose($fh);
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				|  |  | -	}
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				|  |  | -
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				|  |  | -	if (strlen($output) < $count) {
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				|  |  | -	    $output = '';
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				|  |  | -	    for ($i = 0; $i < $count; $i += 16) {
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				|  |  | -		$this->random_state = md5(microtime() . $this->random_state);
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				|  |  | -		$output .=
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				|  |  | -			pack('H*', md5($this->random_state));
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				|  |  | -	    }
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				|  |  | -	    $output = substr($output, 0, $count);
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				|  |  | -	}
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				|  |  | -
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				|  |  | -	return $output;
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				|  |  | +    function get_random_bytes($count)
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				|  |  | +    {
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				|  |  | +        $output = '';
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				|  |  | +        if (is_readable('/dev/urandom') &&
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				|  |  | +            ($fh = @fopen('/dev/urandom', 'rb'))
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				|  |  | +        ) {
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				|  |  | +            $output = fread($fh, $count);
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				|  |  | +            fclose($fh);
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				|  |  | +        }
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				|  |  | +
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				|  |  | +        if (strlen($output) < $count) {
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				|  |  | +            $output = '';
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				|  |  | +            for ($i = 0; $i < $count; $i += 16) {
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				|  |  | +                $this->random_state = md5(microtime() . $this->random_state);
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				|  |  | +                $output .=
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				|  |  | +                    pack('H*', md5($this->random_state));
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				|  |  | +            }
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				|  |  | +            $output = substr($output, 0, $count);
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				|  |  | +        }
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				|  |  | +
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				|  |  | +        return $output;
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				|  |  |      }
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				|  |  |  
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				|  |  | -    function encode64($input, $count) {
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				|  |  | -	$output = '';
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				|  |  | -	$i = 0;
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				|  |  | -	do {
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				|  |  | -	    $value = ord($input[$i++]);
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				|  |  | -	    $output .= $this->itoa64[$value & 0x3f];
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				|  |  | -	    if ($i < $count)
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				|  |  | -		$value |= ord($input[$i]) << 8;
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				|  |  | -	    $output .= $this->itoa64[($value >> 6) & 0x3f];
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				|  |  | -	    if ($i++ >= $count)
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				|  |  | -		break;
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				|  |  | -	    if ($i < $count)
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				|  |  | -		$value |= ord($input[$i]) << 16;
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				|  |  | -	    $output .= $this->itoa64[($value >> 12) & 0x3f];
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				|  |  | -	    if ($i++ >= $count)
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				|  |  | -		break;
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				|  |  | -	    $output .= $this->itoa64[($value >> 18) & 0x3f];
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				|  |  | -	} while ($i < $count);
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				|  |  | -
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				|  |  | -	return $output;
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				|  |  | +    function encode64($input, $count)
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				|  |  | +    {
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				|  |  | +        $output = '';
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				|  |  | +        $i = 0;
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				|  |  | +        do {
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				|  |  | +            $value = ord($input[$i++]);
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				|  |  | +            $output .= $this->itoa64[$value & 0x3f];
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				|  |  | +            if ($i < $count)
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				|  |  | +                $value |= ord($input[$i]) << 8;
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				|  |  | +            $output .= $this->itoa64[($value >> 6) & 0x3f];
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				|  |  | +            if ($i++ >= $count)
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				|  |  | +                break;
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				|  |  | +            if ($i < $count)
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				|  |  | +                $value |= ord($input[$i]) << 16;
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				|  |  | +            $output .= $this->itoa64[($value >> 12) & 0x3f];
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				|  |  | +            if ($i++ >= $count)
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				|  |  | +                break;
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				|  |  | +            $output .= $this->itoa64[($value >> 18) & 0x3f];
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				|  |  | +        } while ($i < $count);
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				|  |  | +
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				|  |  | +        return $output;
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				|  |  |      }
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				|  |  |  
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				|  |  | -    function gensalt_private($input) {
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				|  |  | -	$output = '$P$';
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				|  |  | -	$output .= $this->itoa64[min($this->iteration_count_log2 +
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				|  |  | -			((PHP_VERSION >= '5') ? 5 : 3), 30)];
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				|  |  | -	$output .= $this->encode64($input, 6);
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				|  |  | +    function gensalt_private($input)
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				|  |  | +    {
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				|  |  | +        $output = '$P$';
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				|  |  | +        $output .= $this->itoa64[min($this->iteration_count_log2 +
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				|  |  | +            ((PHP_VERSION >= '5') ? 5 : 3), 30)];
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				|  |  | +        $output .= $this->encode64($input, 6);
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				|  |  |  
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				|  |  | -	return $output;
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				|  |  | +        return $output;
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				|  |  |      }
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				|  |  |  
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				|  |  | -    function crypt_private($password, $setting) {
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				|  |  | -	$output = '*0';
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				|  |  | -	if (substr($setting, 0, 2) == $output)
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				|  |  | -	    $output = '*1';
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				|  |  | -
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				|  |  | -	$id = substr($setting, 0, 3);
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				|  |  | -	# We use "$P$", phpBB3 uses "$H$" for the same thing
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				|  |  | -	if ($id != '$P$' && $id != '$H$')
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				|  |  | -	    return $output;
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				|  |  | -
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				|  |  | -	$count_log2 = strpos($this->itoa64, $setting[3]);
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				|  |  | -	if ($count_log2 < 7 || $count_log2 > 30)
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				|  |  | -	    return $output;
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				|  |  | -
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				|  |  | -	$count = 1 << $count_log2;
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				|  |  | -
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				|  |  | -	$salt = substr($setting, 4, 8);
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				|  |  | -	if (strlen($salt) != 8)
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				|  |  | -	    return $output;
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				|  |  | -
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				|  |  | -	# We're kind of forced to use MD5 here since it's the only
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				|  |  | -	# cryptographic primitive available in all versions of PHP
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				|  |  | -	# currently in use.  To implement our own low-level crypto
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				|  |  | -	# in PHP would result in much worse performance and
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				|  |  | -	# consequently in lower iteration counts and hashes that are
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				|  |  | -	# quicker to crack (by non-PHP code).
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				|  |  | -	if (PHP_VERSION >= '5') {
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				|  |  | -	    $hash = md5($salt . $password, TRUE);
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				|  |  | -	    do {
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				|  |  | -		$hash = md5($hash . $password, TRUE);
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				|  |  | -	    } while (--$count);
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				|  |  | -	} else {
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				|  |  | -	    $hash = pack('H*', md5($salt . $password));
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				|  |  | -	    do {
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				|  |  | -		$hash = pack('H*', md5($hash . $password));
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				|  |  | -	    } while (--$count);
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				|  |  | -	}
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				|  |  | -
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				|  |  | -	$output = substr($setting, 0, 12);
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				|  |  | -	$output .= $this->encode64($hash, 16);
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				|  |  | -
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				|  |  | -	return $output;
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				|  |  | +    function crypt_private($password, $setting)
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				|  |  | +    {
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				|  |  | +        $output = '*0';
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				|  |  | +        if (substr($setting, 0, 2) == $output)
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				|  |  | +            $output = '*1';
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				|  |  | +
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				|  |  | +        $id = substr($setting, 0, 3);
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				|  |  | +        # We use "$P$", phpBB3 uses "$H$" for the same thing
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				|  |  | +        if ($id != '$P$' && $id != '$H$')
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				|  |  | +            return $output;
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				|  |  | +
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				|  |  | +        $count_log2 = strpos($this->itoa64, $setting[3]);
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				|  |  | +        if ($count_log2 < 7 || $count_log2 > 30)
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				|  |  | +            return $output;
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				|  |  | +
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				|  |  | +        $count = 1 << $count_log2;
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				|  |  | +
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				|  |  | +        $salt = substr($setting, 4, 8);
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				|  |  | +        if (strlen($salt) != 8)
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				|  |  | +            return $output;
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				|  |  | +
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				|  |  | +        # We're kind of forced to use MD5 here since it's the only
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				|  |  | +        # cryptographic primitive available in all versions of PHP
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				|  |  | +        # currently in use.  To implement our own low-level crypto
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				|  |  | +        # in PHP would result in much worse performance and
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				|  |  | +        # consequently in lower iteration counts and hashes that are
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				|  |  | +        # quicker to crack (by non-PHP code).
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				|  |  | +        if (PHP_VERSION >= '5') {
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				|  |  | +            $hash = md5($salt . $password, TRUE);
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				|  |  | +            do {
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				|  |  | +                $hash = md5($hash . $password, TRUE);
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				|  |  | +            } while (--$count);
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				|  |  | +        } else {
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				|  |  | +            $hash = pack('H*', md5($salt . $password));
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				|  |  | +            do {
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				|  |  | +                $hash = pack('H*', md5($hash . $password));
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				|  |  | +            } while (--$count);
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				|  |  | +        }
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				|  |  | +
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				|  |  | +        $output = substr($setting, 0, 12);
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				|  |  | +        $output .= $this->encode64($hash, 16);
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				|  |  | +
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				|  |  | +        return $output;
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				|  |  |      }
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				|  |  |  
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				|  |  | -    function gensalt_extended($input) {
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				|  |  | -	$count_log2 = min($this->iteration_count_log2 + 8, 24);
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				|  |  | -	# This should be odd to not reveal weak DES keys, and the
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				|  |  | -	# maximum valid value is (2**24 - 1) which is odd anyway.
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				|  |  | -	$count = (1 << $count_log2) - 1;
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				|  |  | +    function gensalt_extended($input)
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				|  |  | +    {
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				|  |  | +        $count_log2 = min($this->iteration_count_log2 + 8, 24);
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				|  |  | +        # This should be odd to not reveal weak DES keys, and the
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				|  |  | +        # maximum valid value is (2**24 - 1) which is odd anyway.
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				|  |  | +        $count = (1 << $count_log2) - 1;
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				|  |  |  
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				|  |  | -	$output = '_';
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				|  |  | -	$output .= $this->itoa64[$count & 0x3f];
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				|  |  | -	$output .= $this->itoa64[($count >> 6) & 0x3f];
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				|  |  | -	$output .= $this->itoa64[($count >> 12) & 0x3f];
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				|  |  | -	$output .= $this->itoa64[($count >> 18) & 0x3f];
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				|  |  | +        $output = '_';
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				|  |  | +        $output .= $this->itoa64[$count & 0x3f];
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				|  |  | +        $output .= $this->itoa64[($count >> 6) & 0x3f];
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				|  |  | +        $output .= $this->itoa64[($count >> 12) & 0x3f];
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				|  |  | +        $output .= $this->itoa64[($count >> 18) & 0x3f];
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				|  |  |  
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				|  |  | -	$output .= $this->encode64($input, 3);
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				|  |  | +        $output .= $this->encode64($input, 3);
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				|  |  |  
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				|  |  | -	return $output;
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				|  |  | +        return $output;
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				|  |  |      }
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				|  |  |  
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				|  |  | -    function gensalt_blowfish($input) {
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				|  |  | -	# This one needs to use a different order of characters and a
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				|  |  | -	# different encoding scheme from the one in encode64() above.
 | 
	
		
			
				|  |  | -	# We care because the last character in our encoded string will
 | 
	
		
			
				|  |  | -	# only represent 2 bits.  While two known implementations of
 | 
	
		
			
				|  |  | -	# bcrypt will happily accept and correct a salt string which
 | 
	
		
			
				|  |  | -	# has the 4 unused bits set to non-zero, we do not want to take
 | 
	
		
			
				|  |  | -	# chances and we also do not want to waste an additional byte
 | 
	
		
			
				|  |  | -	# of entropy.
 | 
	
		
			
				|  |  | -	$itoa64 = './ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
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				|  |  | -
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				|  |  | -	$output = '$2a$';
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				|  |  | -	$output .= chr(ord('0') + $this->iteration_count_log2 / 10);
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				|  |  | -	$output .= chr(ord('0') + $this->iteration_count_log2 % 10);
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				|  |  | -	$output .= '$';
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				|  |  | -
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				|  |  | -	$i = 0;
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				|  |  | -	do {
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				|  |  | -	    $c1 = ord($input[$i++]);
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				|  |  | -	    $output .= $itoa64[$c1 >> 2];
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				|  |  | -	    $c1 = ($c1 & 0x03) << 4;
 | 
	
		
			
				|  |  | -	    if ($i >= 16) {
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				|  |  | -		$output .= $itoa64[$c1];
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				|  |  | -		break;
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				|  |  | -	    }
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				|  |  | -
 | 
	
		
			
				|  |  | -	    $c2 = ord($input[$i++]);
 | 
	
		
			
				|  |  | -	    $c1 |= $c2 >> 4;
 | 
	
		
			
				|  |  | -	    $output .= $itoa64[$c1];
 | 
	
		
			
				|  |  | -	    $c1 = ($c2 & 0x0f) << 2;
 | 
	
		
			
				|  |  | -
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				|  |  | -	    $c2 = ord($input[$i++]);
 | 
	
		
			
				|  |  | -	    $c1 |= $c2 >> 6;
 | 
	
		
			
				|  |  | -	    $output .= $itoa64[$c1];
 | 
	
		
			
				|  |  | -	    $output .= $itoa64[$c2 & 0x3f];
 | 
	
		
			
				|  |  | -	} while (1);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -	return $output;
 | 
	
		
			
				|  |  | +    function gensalt_blowfish($input)
 | 
	
		
			
				|  |  | +    {
 | 
	
		
			
				|  |  | +        # This one needs to use a different order of characters and a
 | 
	
		
			
				|  |  | +        # different encoding scheme from the one in encode64() above.
 | 
	
		
			
				|  |  | +        # We care because the last character in our encoded string will
 | 
	
		
			
				|  |  | +        # only represent 2 bits.  While two known implementations of
 | 
	
		
			
				|  |  | +        # bcrypt will happily accept and correct a salt string which
 | 
	
		
			
				|  |  | +        # has the 4 unused bits set to non-zero, we do not want to take
 | 
	
		
			
				|  |  | +        # chances and we also do not want to waste an additional byte
 | 
	
		
			
				|  |  | +        # of entropy.
 | 
	
		
			
				|  |  | +        $itoa64 = './ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +        $output = '$2a$';
 | 
	
		
			
				|  |  | +        $output .= chr(ord('0') + $this->iteration_count_log2 / 10);
 | 
	
		
			
				|  |  | +        $output .= chr(ord('0') + $this->iteration_count_log2 % 10);
 | 
	
		
			
				|  |  | +        $output .= '$';
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +        $i = 0;
 | 
	
		
			
				|  |  | +        do {
 | 
	
		
			
				|  |  | +            $c1 = ord($input[$i++]);
 | 
	
		
			
				|  |  | +            $output .= $itoa64[$c1 >> 2];
 | 
	
		
			
				|  |  | +            $c1 = ($c1 & 0x03) << 4;
 | 
	
		
			
				|  |  | +            if ($i >= 16) {
 | 
	
		
			
				|  |  | +                $output .= $itoa64[$c1];
 | 
	
		
			
				|  |  | +                break;
 | 
	
		
			
				|  |  | +            }
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +            $c2 = ord($input[$i++]);
 | 
	
		
			
				|  |  | +            $c1 |= $c2 >> 4;
 | 
	
		
			
				|  |  | +            $output .= $itoa64[$c1];
 | 
	
		
			
				|  |  | +            $c1 = ($c2 & 0x0f) << 2;
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +            $c2 = ord($input[$i++]);
 | 
	
		
			
				|  |  | +            $c1 |= $c2 >> 6;
 | 
	
		
			
				|  |  | +            $output .= $itoa64[$c1];
 | 
	
		
			
				|  |  | +            $output .= $itoa64[$c2 & 0x3f];
 | 
	
		
			
				|  |  | +        } while (1);
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +        return $output;
 | 
	
		
			
				|  |  |      }
 | 
	
		
			
				|  |  |  
 | 
	
		
			
				|  |  | -    function HashPassword($password) {
 | 
	
		
			
				|  |  | -	$random = '';
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -	if (CRYPT_BLOWFISH == 1 && !$this->portable_hashes) {
 | 
	
		
			
				|  |  | -	    $random = $this->get_random_bytes(16);
 | 
	
		
			
				|  |  | -	    $hash = crypt($password, $this->gensalt_blowfish($random));
 | 
	
		
			
				|  |  | -	    if (strlen($hash) == 60)
 | 
	
		
			
				|  |  | -		return $hash;
 | 
	
		
			
				|  |  | -	}
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -	if (CRYPT_EXT_DES == 1 && !$this->portable_hashes) {
 | 
	
		
			
				|  |  | -	    if (strlen($random) < 3)
 | 
	
		
			
				|  |  | -		$random = $this->get_random_bytes(3);
 | 
	
		
			
				|  |  | -	    $hash = crypt($password, $this->gensalt_extended($random));
 | 
	
		
			
				|  |  | -	    if (strlen($hash) == 20)
 | 
	
		
			
				|  |  | -		return $hash;
 | 
	
		
			
				|  |  | -	}
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -	if (strlen($random) < 6)
 | 
	
		
			
				|  |  | -	    $random = $this->get_random_bytes(6);
 | 
	
		
			
				|  |  | -	$hash = $this->crypt_private($password, $this->gensalt_private($random));
 | 
	
		
			
				|  |  | -	if (strlen($hash) == 34)
 | 
	
		
			
				|  |  | -	    return $hash;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -	# Returning '*' on error is safe here, but would _not_ be safe
 | 
	
		
			
				|  |  | -	# in a crypt(3)-like function used _both_ for generating new
 | 
	
		
			
				|  |  | -	# hashes and for validating passwords against existing hashes.
 | 
	
		
			
				|  |  | -	return '*';
 | 
	
		
			
				|  |  | +    function HashPassword($password)
 | 
	
		
			
				|  |  | +    {
 | 
	
		
			
				|  |  | +        $random = '';
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +        if (CRYPT_BLOWFISH == 1 && !$this->portable_hashes) {
 | 
	
		
			
				|  |  | +            $random = $this->get_random_bytes(16);
 | 
	
		
			
				|  |  | +            $hash = crypt($password, $this->gensalt_blowfish($random));
 | 
	
		
			
				|  |  | +            if (strlen($hash) == 60)
 | 
	
		
			
				|  |  | +                return $hash;
 | 
	
		
			
				|  |  | +        }
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +        if (CRYPT_EXT_DES == 1 && !$this->portable_hashes) {
 | 
	
		
			
				|  |  | +            if (strlen($random) < 3)
 | 
	
		
			
				|  |  | +                $random = $this->get_random_bytes(3);
 | 
	
		
			
				|  |  | +            $hash = crypt($password, $this->gensalt_extended($random));
 | 
	
		
			
				|  |  | +            if (strlen($hash) == 20)
 | 
	
		
			
				|  |  | +                return $hash;
 | 
	
		
			
				|  |  | +        }
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +        if (strlen($random) < 6)
 | 
	
		
			
				|  |  | +            $random = $this->get_random_bytes(6);
 | 
	
		
			
				|  |  | +        $hash = $this->crypt_private($password, $this->gensalt_private($random));
 | 
	
		
			
				|  |  | +        if (strlen($hash) == 34)
 | 
	
		
			
				|  |  | +            return $hash;
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +        # Returning '*' on error is safe here, but would _not_ be safe
 | 
	
		
			
				|  |  | +        # in a crypt(3)-like function used _both_ for generating new
 | 
	
		
			
				|  |  | +        # hashes and for validating passwords against existing hashes.
 | 
	
		
			
				|  |  | +        return '*';
 | 
	
		
			
				|  |  |      }
 | 
	
		
			
				|  |  |  
 | 
	
		
			
				|  |  | -    function CheckPassword($password, $stored_hash) {
 | 
	
		
			
				|  |  | -	$hash = $this->crypt_private($password, $stored_hash);
 | 
	
		
			
				|  |  | -	if ($hash[0] == '*')
 | 
	
		
			
				|  |  | -	    $hash = crypt($password, $stored_hash);
 | 
	
		
			
				|  |  | +    function CheckPassword($password, $stored_hash)
 | 
	
		
			
				|  |  | +    {
 | 
	
		
			
				|  |  | +        $hash = $this->crypt_private($password, $stored_hash);
 | 
	
		
			
				|  |  | +        if ($hash[0] == '*')
 | 
	
		
			
				|  |  | +            $hash = crypt($password, $stored_hash);
 | 
	
		
			
				|  |  |  
 | 
	
		
			
				|  |  | -	return $hash == $stored_hash;
 | 
	
		
			
				|  |  | +        return $hash == $stored_hash;
 | 
	
		
			
				|  |  |      }
 | 
	
		
			
				|  |  |  
 | 
	
		
			
				|  |  |  }
 |