public static function provideGenerators()
{
$factory = new \CryptLib\Random\Factory();
$generator = $factory->getLowStrengthGenerator();
$sources = $generator->getSources();
$ret = array();
$ret[] = array(new Generator($sources, new \CryptLib\Random\Mixer\Hash()), 10000, 'hash');
$ret[] = array(new Generator($sources, new \CryptLib\Random\Mixer\DES()), 10000, 'des');
$ret[] = array(new Generator($sources, new \CryptLib\Random\Mixer\Rijndael()), 10000, 'rijndael');
return $ret;
}
* CryptLib\Random\Factory class to build a random number generator to suit
* our needs here.
*/
//We first load the bootstrap file so we have access to the library
require_once dirname(dirname(__DIR__)) . '/lib/CryptLib/bootstrap.php';
//Now, let's get a random number factory
$factory = new \CryptLib\Random\Factory();
/**
* Now, since we want a low strength random number, let's get a low strength
* generator from the factory.
*
* If we wanted stronger random numbers, we could change this to medium or high
* but both use significantly more resources to generate, so let's just stick
* with low for the purposes of this example:
*/
$generator = $factory->getLowStrengthGenerator();
/**
* We can now start generating our random strings. The generator by default
* outputs full-byte strings (character 0 - 255), so it's not safe to display
* them directly. Instead, let's convert them to hex to show the string.
*/
$number = $generator->generate(8);
printf("\nHere's our first random string: %s\n", bin2hex($number));
/**
* We can also base64 encode it to display the string
*/
$number = $generator->generate(8);
printf("\nHere's a base64 encoded random string: %s\n", base64_encode($number));
/**
* But, we can also generate random strings against a list of characters. That
* way we can use the random string in user-facing situations: (this can be for
/**
* Generates a Safe Hash to use throughout CiiMS
* @param integer $length the hash length, default of 16
* @return string
*/
public static function generateSafeHash($length = 16)
{
$factory = new CryptLib\Random\Factory();
return preg_replace('/[^A-Za-z0-9\\-]/', '', $factory->getLowStrengthGenerator()->generateString($length));
}
/**
* Generates a new API key for this application
* @return string
*/
protected function generateApiKey()
{
// Load the hashing factory
$factory = new CryptLib\Random\Factory();
$meta = UserMetadata::model()->getPrototype('UserMetadata', array('user_id' => $this->getUser()->id, 'key' => 'api_key' . $this->app_name), array('user_id' => $this->getUser()->id, 'key' => 'api_key' . $this->app_name));
$meta->value = $factory->getLowStrengthGenerator()->generateString(16);
if ($meta->save()) {
return $meta->value;
}
throw new CHttpException(500, Yii::t('ciims.models.LoginForm', 'Unable to create API key, please try again.'));
}