src/Adapter/Helper/ActiveUserDataProvider.php
public function getActiveUserHashedId()
    {
        $id = null;
        if ($this->isLoaded()) {
            $id = md5($this->user->oxuser__oxid->value);
        }

        return $id;
    }
public function getActiveUserHashedId()
    {
        $id = null;
        if ($this->isLoaded()) {
            $id = md5($this->user->oxuser__oxid->value);
        }

        return $id;
    }
Hashes active user ID and returns it.

@return null|string