cryptography

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Across
  1. 3. unauthorized disclosure of information
  2. 6. an passive attack
  3. 7. A combination of an encryption and decryption algorithm is called
  4. 8. plaintext for the cipher “SDUWB”using caeser cipher
Down
  1. 1. prevents either sender or receiver from denying a transmitted message
  2. 2. security mechanism used to protect confidentiality of the data unit
  3. 4. use of trusted third party to assure data exchange
  4. 5. an active attack