One disadvantage of the link encryption approach is that the messagemust be decrypted each time it enters a frame switch.
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Q11: _ is the original message or data
Q12: AES uses a Feistel structure.
Q12: The exact substitutions and transformations performed by
Q13: The ciphertext-only attack is the easiest to
Q15: "The plaintext is 64 bits in length
Q17: The _ is the encryption algorithm run
Q18: Key distribution can be achieved for two
Q19: Symmetric encryption is also referred to as
Q20: Plaintext is the scrambled message produced as
Q21: For general-purpose stream-oriented transmission you would typically
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