History of Cryptography

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Across
  1. 2. The process of decoding.
  2. 4. Used by Romans.
  3. 6. Encrypted text within a message or document.
  4. 8. The process of encoding.
Down
  1. 1. Name of the camp.
  2. 3. Readable text or message.
  3. 5. Used by Egyptians.
  4. 7. Machine used by Germans in World War 2.
  5. 9. An algorithm for performing encryption.