Across
- 2. Process of converting plaintext to ciphertext
- 4. Reverse the encryption process
- 5. The original unencoded message
- 8. Number of positions to move each letter
- 9. Another name for the shifting technique used
Down
- 1. Type of cipher that replaces letters with other letters
- 3. The 26 letters used in English encoding
- 6. The number that determines how far to shift
- 7. First name of the Roman general who used this cipher