repeating-passwordcipher

noun

UK /rɪˈpiːtɪŋ ˈpɑːswɜːd ˈsaɪfə/

US /rɪˈpiːtɪŋ ˈpæswɜːrd ˈsaɪfər/

A secret code that uses the same password over and over to hide a message.

The spy used a repeating-passwordcipher so the same secret word scrambled every letter of the note.

SYNONYMS

repeating-key cipher periodic-key cipher repeated-key encryption cyclic-key cipher

RELATED WORDS

cipher encryption password secret key cryptography

OTHER MEANINGS

2. A cipher where the key is repeated to match the length of the message.

In a repeating-passwordcipher, the short key is copied again and again until it covers the whole text.

3. A simple encryption method that is easy to break when the key is short.

Codebreakers can crack a repeating-passwordcipher by spotting patterns in the scrambled letters.

4. A teaching example used to show how repeating keys create patterns.

The class used a repeating-passwordcipher to see why long random keys are safer.