Fix default salt being unicode instead of bytes
Fix default salt being unicode instead of bytes

etalab/udata,jphnoel/udata,etalab/udata,jphnoel/udata,opendatateam/udata,davidbgk/udata,opendatateam/udata,etalab/udata,jphnoel/udata,davidbgk/udata,davidbgk/udata,opendatateam/udata