nestedcipher

noun
UK /ˈnɛstɪdˌsaɪfə/
US /ˈnɛstɪdˌsaɪfər/

A nestedcipher is a secret code hidden inside another secret code.

The spy used a nestedcipher so that even if someone cracked the first code, the real message stayed hidden.


OTHER MEANINGS

2. A puzzle where solving one clue reveals another clue beneath it.

The treasure hunt used a nestedcipher: each answer pointed to the next riddle.

3. A computer file that contains another encrypted file inside it.

The technician found a nestedcipher inside the archive, hiding the real documents.

4. A message written so that each word hides a smaller coded word.

Her letter was a nestedcipher, with tiny hidden words tucked inside the ordinary sentences.