/**
* Build a new instance
*
* @param Generator $generator The random generator to use for seeds
* @param Factory $factory The hash factory to use for this instance
*
* @return void
*/
public function __construct(\CryptLib\Random\Generator $generator = null)
{
if (is_null($generator)) {
$random = new RandomFactory();
$generator = $random->getMediumStrengthGenerator();
}
$this->generator = $generator;
}
/**
* Build a new instance
*
* @param int $iterations The number of times to iterate the hash
* @param Generator $generator The random generator to use for seeds
*
* @return void
*/
public function __construct($iterations = 8, \CryptLib\Random\Generator $generator = null)
{
if ($iterations > 31 || $iterations < 4) {
throw new \InvalidArgumentException('Invalid Iteration Count Supplied');
}
$this->iterations = $iterations;
if (is_null($generator)) {
$random = new RandomFactory();
$generator = $random->getMediumStrengthGenerator();
}
$this->generator = $generator;
}
/**
* Build a new instance of the PBKDF password class
*
* @param PBKDF $derivation The derivation class to use
* @param int $size The size of hash to generate
* @param int $iterations The number of iterations to perform
* @param Generator $generator The Random Generator to use
*
* @return void;
*/
public function __construct(\CryptLib\Key\Derivation\PBKDF $derivation = null, $size = 40, $iterations = 5000, \CryptLib\Random\Generator $generator = null)
{
if (is_null($derivation)) {
$derivation = new PBKDF2();
}
$this->derivation = $derivation;
$this->size = $size < 40 ? 40 : (int) $size;
$this->iterations = $iterations > 0 ? (int) $iterations : 1;
if (is_null($generator)) {
$factory = new RandomFactory();
$generator = $factory->getMediumStrengthGenerator();
}
$this->generator = $generator;
}
/**
* @covers CryptLib\Random\Factory::getMediumStrengthGenerator
* @covers CryptLib\Random\Factory::getGenerator
* @covers CryptLib\Random\Factory::findMixer
*/
public function testGetMediumStrengthGenerator()
{
$factory = new Factory();
$generator = $factory->getMediumStrengthGenerator();
$this->assertTrue($generator instanceof CryptLib\Random\Generator);
$mixer = call_user_func(array(get_class($generator->getMixer()), 'getStrength'));
$this->assertTrue($mixer->compare(new Strength(Strength::MEDIUM)) <= 0);
foreach ($generator->getSources() as $source) {
$strength = call_user_func(array(get_class($source), 'getStrength'));
$this->assertTrue($strength->compare(new Strength(Strength::MEDIUM)) >= 0);
}
}
/**
* Shuffle a string and return the randomized string
*
* @param string $string The string to randomize
*
* @return string The shuffled string
*/
public function shuffleString($string)
{
$factory = new RandomFactory();
$generator = $factory->getMediumStrengthGenerator();
$array = str_split($string);
$result = $this->shuffleArray($array);
return implode('', $result);
}