Related Clues:
- Secure, in a way
- Write in Playfair, e.g.
- See 46 Down
- Disguised language
- Morse creation
- What cryptographers do
- ''Bar'' or ''airport'' follower
- What a programmer writes
- Make secret, in a way
- When it's cracked, it's broken
- Encipher
- It may be broken
- Collection of laws
- Camouflaged communication
- Dots and dashes, e.g.