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______________ employs a text string as a key that is implemented to do a series of shifts on the plain-text.(a) Vigenere Cipher(b) Shift Cipher(c) Playfair Cipher(d) Block CipherI have been asked this question in final exam.This is a very interesting question from Cryptography in portion Cryptography in Security of Cyber Security

Answer»

The CORRECT choice is (a) Vigenere CIPHER

Explanation: Vigenere Cipher employs a TEXT string as a key that is implemented to do a series of shifts on the plain-text. Here the sender & the receiver settle on a single key.



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