Helper/PasswordHelper.php
public function lookup($hash, $className = 'Orkestra\Bundle\ApplicationBundle\Entity\User')
    {
        try {
            return $this->hashedEntityHelper->lookup($hash, $className);
            
        } catch (\RuntimeException $e) {
            return null;
        }
    }
public function lookup($hash, $className = 'Orkestra\Bundle\ApplicationBundle\Entity\User')
    {
        try {
            return $this->hashedEntityHelper->lookup($hash, $className);
            
        } catch (\RuntimeException $e) {
            return null;
        }
    }
Looks up a user with the given hash

@param string $hash
@param string $className
@return null|HashedEntity