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单项选择题Regarding constructing a good encryption algorithm, what does creating an avalanche effect indicate?()

A、Altering the key length causes the ciphertext to be completely different

B、Changing only a few bits of a ciphertext message causes the plain text to be completely different

C、Altering the key length causes the plain text to be completely different

D、Changing only a few bits of a plain-text message causes the ciphertext to be completely different

  • D
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