cyclic-keycipher
nounUK /ˈsaɪ.klɪk ˈkiː.saɪ.fər/
US /ˈsaɪ.klɪk ˈkiː.saɪ.fɚ/
A secret code that repeats a pattern to hide a message.
The spy used a cyclic-keycipher to scramble the note so only her friend could read it.
RELATED WORDS
OTHER MEANINGS
2. A cipher whose key cycles through a fixed sequence of symbols.
The cyclic-keycipher cycled through three letters before starting over.
3. A method of encoding where the same key pattern is reused for each block of text.
Because the cyclic-keycipher reused its key, the codebreaker spotted the pattern.
4. A puzzle tool that shifts letters in a repeating loop.
The children made a cyclic-keycipher wheel to send secret notes.