Data Structures Algorithms-II MCQs

Page No. 136

Which of the following is an example of asymmetric encryption technique?


aone-time pad


b one-time password


cDSA


dblowfish


View Answer DSA

Asymmetric encryption is also known as?


aPrivate key cryptography


bPublic key cryptography


cPublic private key cryptography


d Traditional cryptography



Which of the following cipher uses two keys to encrypt data?


asubstitution cipher


btransposition cipher


csymmetric cipher


dasymmetric cipher


View Answer asymmetric cipher

Which of the following is not a type of traditional cipher?


aSubstitution cipher


bTransposition cipher


cMono alphabetic cipher


dPKCS cipher


View Answer PKCS cipher

While choosing the value of a and m (m is the no. of alphabets) in affine cipher it must be ensured that?


aa and m are prime numbers


ba and m are odd numbers


ca and m are coprime


da and m are even numbers


View Answer a and m are coprime

What will be the plain text corresponding to ciphered text “rmw ” if an affine cipher is used with key values as a=5, b=10?


acsk


bkkr


csrt


dmsd


View Answer srt

What will be the ciphered text corresponding to plain text “sanfoundry” if an affine cipher is used with key values as a=5, b=10?


awkxjcgxzra


b gkxteuxfzw


cukxhmyxdfg


drfsexbsumv


View Answer wkxjcgxzra

Affine cipher is not susceptible to frequency analysis.


atrue


bFalse


cA & B


dNone of the above


View Answer False

Affine cipher is less secure than caesar cipher.


atrue


bFalse


cA & B


d None of these


View Answer False

Affine cipher is an example of?


aMono alphabetic cipher


bPoly alphabetic cipher


cTransposition cipher


dAsymmetric cipher



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