/**
* Generate a config string from an array.
*
* @param array $config Array of configuration options.
* @return string Configuration string.
* @throws InvalidArgumentException Throws an InvalidArgumentException if
* any passed-in configuration options are invalid.
*/
public static function genConfig(array $config = array())
{
$defaults = array('salt' => Utilities::encode64(Utilities::genRandomBytes(1)));
$config = array_merge($defaults, array_change_key_case($config, CASE_LOWER));
$string = '*1';
if (self::validateOptions($config)) {
$string = $config['salt'];
}
return $string;
}
/**
* Generate a config string from an array.
*
* @param array $config Array of configuration options.
* @return string Configuration string.
* @throws InvalidArgumentException Throws an InvalidArgumentException if
* any passed-in configuration options are invalid.
*/
public static function genConfig(array $config = array())
{
$defaults = array('rounds' => 40000, 'salt' => Utilities::encode64(Utilities::genRandomBytes(6)));
$config = array_merge($defaults, array_change_key_case($config, CASE_LOWER));
$string = '*1';
if (self::validateOptions($config)) {
$string = sprintf('$sha1$%d$%s', $config['rounds'], $config['salt']);
}
return $string;
}
/**
* Generate a config string from an array.
*
* @param array $config Array of configuration options.
* @return string Configuration string.
* @throws InvalidArgumentException Throws an InvalidArgumentException if
* any passed-in configuration options are invalid.
*/
public static function genConfig(array $config = array())
{
$defaults = array('ident' => self::IDENT_PHPASS, 'rounds' => 16, 'salt' => Utilities::encode64(Utilities::genRandomBytes(6)));
$config = array_merge($defaults, array_change_key_case($config, CASE_LOWER));
$string = '*1';
if (self::validateOptions($config)) {
$charset = Utilities::CHARS_H64;
$string = sprintf('$%s$%s%s', $config['ident'], $charset[(int) $config['rounds']], $config['salt']);
}
return $string;
}
/**
* Generate a config string from an array.
*
* @param array $config Array of configuration options.
* @return string Configuration string.
* @throws InvalidArgumentException Throws an InvalidArgumentException if
* any passed-in configuration options are invalid.
*/
public static function genConfig(array $config = array())
{
$defaults = array('rounds' => 5001, 'salt' => Utilities::encode64(Utilities::genRandomBytes(3)));
$config = array_merge($defaults, array_change_key_case($config, CASE_LOWER));
$string = '*1';
if (self::validateOptions($config)) {
// Rounds needs to be odd in order to avoid exposing weak DES keys
if ($config['rounds'] % 2 == 0) {
--$config['rounds'];
}
$string = sprintf('_%s%s', Utilities::encodeInt24($config['rounds']), $config['salt']);
}
return $string;
}
/**
* @param string $input
* @return string
*/
protected static function genSalt($input = null)
{
if (!$input) {
$input = Utilities::genRandomBytes(16);
}
$count = strlen($input);
$atoi64 = './ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
$output = '';
$i = 0;
do {
$c1 = ord($input[$i++]);
$output .= $atoi64[$c1 >> 2];
$c1 = ($c1 & 0x3) << 4;
if ($i >= $count) {
$output .= $atoi64[$c1];
break;
}
$c2 = ord($input[$i++]);
$c1 |= $c2 >> 4;
$output .= $atoi64[$c1];
$c1 = ($c2 & 0xf) << 2;
$c2 = ord($input[$i++]);
$c1 |= $c2 >> 6;
$output .= $atoi64[$c1];
$output .= $atoi64[$c2 & 0x3f];
} while (1);
return $output;
}
/**
* @param string $input
* @return string
*/
protected static function genSalt($input = null)
{
if (!$input) {
$input = Utilities::genRandomBytes(16);
}
return Utilities::altBase64Encode($input);
}
