Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

5. (a) Given affine cipher En(x) = 11x + 14 mod 26, encrypt the message hello (b) decrypt the ciphertext goody to determine the plaintext.

image text in transcribed
5. (a) Given affine cipher En(x) = 11x + 14 mod 26, encrypt the message hello (b) decrypt the ciphertext goody to determine the plaintext. Note the plaintext is nonsensical english (c) In a one-time pad, if the key is 1001001 and the ciphertext is 0010011 then what is the plaintext. (d) suppose we apply a permutation of three items using (1,2,0). Determine the ciphertext when we encrypt the plaintext tophat (e) Suppose to encrypt we apply a substitution, permutation of three items and then a substitution (lets call this encryption SPS). The substitution is the affine cipher in (a) and the permutation is given by (1,2,0). Using SPS determine the ciphertext when we encrypt of the plaintext tophat

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Transactions On Large Scale Data And Knowledge Centered Systems Xxiv Special Issue On Database And Expert Systems Applications Lncs 9510

Authors: Abdelkader Hameurlain ,Josef Kung ,Roland Wagner ,Hendrik Decker ,Lenka Lhotska ,Sebastian Link

1st Edition

366249213X, 978-3662492130

More Books

Students also viewed these Databases questions