Across
- 4. Program to make computers do things
- 5. Tuning a radio
- 8. Random numbers but mathematically correct
- 11. Key to the heart
- 12. Showing that something is real
- 13. James Bond
- 17. Breaking in without a key
- 19. Genius
- 20. Math
Down
- 1. talk effectively with someone
- 2. Guards at an event
- 3. Message transformed to hinder public viewing
- 4. message hidden behind code
- 6. The use of counting and arranging
- 7. Message reformed to allow viewing of the public
- 9. Machine used in WW2
- 10. Process of turning back message
- 14. Saying thank you to show respect
- 15. Many alphabets to hide message
- 16. A word you give to gain access to something
- 18. A way of writing