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A unique piece of information that is used in encryption.(a) Cipher(b) Plain Text(c) Key(d) CipherThis question was addressed to me at a job interview.This interesting question is from Encryption and Viruses in division Information Technology of Computer Fundamentals

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Correct choice is (c) Key

To explain I WOULD SAY: The key is the unique piece of information.It is used to CREATE the CIPHER text and decrypt it BACK.



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