Bir martali kalit
- siklda (kalitlaming hayot siklida) shifrlash
uchun bir marta ishlatiluvchi kalit. Odatda saqlanmaydigan va
tarkibiy kalit elementi hisoblanadi.
Once-only key
- the key which is once used for enciphering in
a cycle (vital keys). Usually isn't subject to storage and is an
element of a key compound.
