Encrypt the message “INFORMATION” using the Playfair cipher with the keyword “SECURITY”.
Marks: 5Chapter: Unit 1. Introduction and Classical Ciphers
Chapter Study
Bsc CSIT Semester 5 – Cryptography – Unit 1. Introduction and Classical Ciphers
Comprehensive questions and detailed answers for Unit 1. Introduction and Classical Ciphers. Perfect for exam preparation and concept clarity.
9
Questions
45
Marks
Encrypt the message “INFORMATION” using the Playfair cipher with the keyword “SECURITY”.
MediumTHEORY5 marks2076(TU Final)
Decrypt the message “GVPJ” using Hill cipher taking the key as {Row1 = 3 7, Row2= 5 12}.
MediumTHEORY5 marks2078(TU Final)
The message “IMOGUN” was encrypted with a Playfair cipher using keyword “GALOIS”. Decrypt the message.
MediumTHEORY5 marks2079(TU Final)
Show encryption and decryption of “csit” using hill cipher having key,
MediumTHEORY5 marks2080(TU Final)
How substitution ciphers are different from transposition ciphers? Given a message M=”CSIT PROGRAM IS A HOT CAKE”, encrypt M using Rail Fence cipher with rail size 3.
MediumTHEORY5 marks2080(TU Final)
Show the encryption of plain text “ALGORITHM” using the key “PSEUDOCODE” using playfair cipher.
MediumTHEORY5 marks2081(TU Final)
Using Vignere cipher with key = “worlds”, encrypt the plain text “hello everyone”.
MediumTHEORY5 marks2081(TU Final)
Given the key “HELLOWORLD”, encrypt the plaintext “TURINGTEST” using Play fair cipher.
MediumTHEORY5 marks2082(TU Final)
Which one is more secure, monoalphabetic cipher or poly alphabetic cipher? Justify. Using Rail Fence cipher, encrypt the text "LEARNING AND TEACHING ARE DIFFERENT", using 3 as rails.
MediumTHEORY5 marks2079(TU Final)
Showing 9 questions
Sample Questions
Decrypt the message “GVPJ” using Hill cipher taking the key as {Row1 = 3 7, Row2= 5 12}.
Marks: 5Chapter: Unit 1. Introduction and Classical Ciphers
The message “IMOGUN” was encrypted with a Playfair cipher using keyword “GALOIS”. Decrypt the message.
Marks: 5Chapter: Unit 1. Introduction and Classical Ciphers
Show encryption and decryption of “csit” using hill cipher having key, \[ k = \begin{array}{|c|c|} \hline 3 & 2 \\ \hline 5 & 7 \\ \hline \end{array} \]
Marks: 5Chapter: Unit 1. Introduction and Classical Ciphers
How substitution ciphers are different from transposition ciphers? Given a message M=”CSIT PROGRAM IS A HOT CAKE”, encrypt M using Rail Fence cipher with rail size 3.
Marks: 5Chapter: Unit 1. Introduction and Classical Ciphers
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