time-based cipher
nounUK /ˈtaɪm beɪst ˈsaɪfə/
US /ˈtaɪm beɪst ˈsaɪfər/
A secret code that changes with the clock so it is hard to guess.
The spy used a time-based cipher that gave a new code every minute.
RELATED WORDS
OTHER MEANINGS
2. A method of hiding messages where the key depends on the current time.
Engineers built a time-based cipher into the app to protect messages.
3. A puzzle or game code that only works during certain hours.
The treasure hunt used a time-based cipher that opened only at noon.
4. A way to scramble data that refreshes automatically as time passes.
The bank's time-based cipher keeps account numbers safe.