Vigenere Cipher Multiple choice Questions and Answers (MCQs)
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What is the meaning of cipher in cryptography?
an algorithm that performs encryption
an algorithm that generates a secret code
an algorithm that performs encryption or decryption
a secret code
Question 1 Explanation:
Cipher is an algorithm for performing encryption or decryption. In cryptography, a set of defined steps are followed to generate ciphers. These are necessary to prevent data breach.
Vigenere cipher is an example of .....
Question 2 Explanation:
Vigenere cipher is a substitution cipher. It falls under the category of poly alphabetic cipher as it uses multiple substitution at different positions in order to cipher the plain text.
Encryption in Vigenere cipher is done using .....
Question 3 Explanation:
Encryption of plain text using vigenre cipher is done by making use of vigenere table. It is also known as vigenere square.
Which of the following correctly defines poly alphabetic cipher?
a substitution based cipher which uses multiple substitution at different positions
a substitution based cipher which uses fixed substitution over entire message
a transposition based cipher which uses multiple substitution at different positions
a transposition based cipher which uses fixed substitution over entire message
Question 4 Explanation:
Poly alphabetic cipher is a type of substitution cipher. It uses multiple substitution at different positions in order to cipher the plain text.
Which of the following is not a type of poly alphabetic cipher?
One time pad cipher
Question 5 Explanation:
In poly alphabetic cipher each symbol of plain text is replaced by a different cipher text regardless of its occurrence. Out of the given options only multiplicative cipher is not a poly alphabetic cipher.
There are 5 questions to complete.