Cryptology

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