Using Shift Cipher with Key = 4, encrypt the plaintext CONFIDENTIALITY IS ASSURED

Q: Encrypt the following message using Caesar cipher with a key of 3 The message is  (SECURITY IS THE…

A: answer starts from step 2

Q: Your job is to decrypt the intercepted message CQNTNHRBDWMNACQNVJC, which is believed to reveal the…

A: letter=[chr(x) for x in range(65,91)] cipher="cqnthnrbdwnacqnvjc"  cipher=cipher.upper() for key in…

Q: 4- In a Hill cipher, find decryption key if the encryption key: k- 3

A: Decryption key=(k inverse)mod 26

Q: Encrypt the following plain text with a shift cipher with key K=11: THEREISSOMETHINGINTHESTOVE

A: - We need to get the encryption with key k = 11 and the code.

Q: Encrypt the message DEFEND THE BORDER. using RSA encryp- tion with key (e,n) = (11, 3071).

A: Answer: I have given answered in the handwritten format.

Q: Find the decryption key for the affine cipher with n=26, a=5 and b=8. Encrypt the message with the…

A: The Answer is

Q: Use Rail fence cipher to encrypt the following plain text where key is length of your first name.…

A: The rail fence cipher is a transposition cipher that jumbles up the order of the letters of a…

Q: Question # 2: Use the additive cipher with key = 15 to decrypt the message “WTAAD”. You must show…

A: The above question is solved in step 2 :-

Q: Which procedure is most susceptible when an attacker may edit ciphertext blocks without knowing the…

A: The ECB, also known as an electronic codebook, is a system that encrypts plaintext individually…

Q: 5. Using a Shift Cipher, the plaintext ’EULER’ gives ’LBSLY’. What is the value of k?

A: Each letter in the plaintext is moved a specific number of positions down the alphabet in a shift…

Q: Affine cipher is less secure than caesar cipher. 1. true 2. false

A: Question. Affine cipher is less secure than caesar cipher. 1. true 2. false

Q: Using the RSA algorithm, if M = 232, p = 47, q = 71 ande = 79, the ciphertext C ---- %3D %3D O 2856…

A: Given that, M = 232 p = 47 q = 71 e = 79

Q: Decrypt the following ciphertext using Hill Cipher where the key is given. 2 a) Ciphertext =…

A: Given Data : Cipher Text = "vegxfl" Key = CFJZ

Q: Decrypt the message MAXLJGTEAX which was encrypted using the affine cipher: f(p) (5p+6) mod 26 =…

A: The Answer is

Q: Encrypt using a shift cipher with the key K=4: MYLASTFAREWELL

A: Your question is about shift cipher encryption which given below :

Q: Decrypt the message MAXLJGTEAX which was encrypted using the affine cipher: Alphabet: A = 0, B = 1,…

A: The Affine cipher given: f(p) = (5p + 6) mod 26 The message given to decrypt is:- MAXLJGTEAX

Q: Use the modified Caesar cipher described in the assignment instructions to decrypt the following:…

A: Decrypt the following ciphertext using caesar cipher technique: Ciphertext:  NHUMJNXDTIKey: 5

Q: Use the modified Caesar cipher described in the assignment instructions to encrypt the following:…

A: Below i have given answer:

Q: Encrypt and decrypt the plaintext C using the Vernam one-time pad cipher for the key value 23.

A: Vernam One-time pad: The one-time pad is a random sequence of characters used as a key for…

Q: Decrypt the message “HDSIOEYQOCAA” using 3*3 Hill cipher with the Key: “CIPHERING”. Encrypt the text…

A: SUMMARY: -   Hence, we discussed all the points.

Q: RSA Using python script: Attacker obtains Q(n) = 15000 and knows public key is (en) = (19,15251). He…

A: Given, n=p*q=15251 ϕ(n)=(p-1)*(q-1)=15000 ⇒pq-p-q+1=15000 ⇒15251-p-q+1=15000 ⇒p+q=252…

Q: Which procedure is most susceptible when an attacker may edit ciphertext blocks without knowing the…

A: Given:   We have to discuss Which procedure is most susceptible when an attacker may edit ciphertext…

Q: Decrypt the message EYDXIOBAYD which was encrypted using the affine cipher: Alphabet: A = 0,…

A: The question asks to decrypt the message "EYDXJOBAYD", which was encrypted using the affine cipher…

Q: Find the plaintext using Vernam Cipher if the cipher text is “JEURQWEP” and the key is “rainyday”.

A: Vernam Cipher uses key and text of the same_ length that is the characters in both of them must be…

Q: Encipher the following plaintext using the Caesar cipher and key = 5: “meet me at the park”

A: The Caesar cipher is a  substitution cipher where each letter in the plaintext is moved a specific…

Q: Use the Vigenère cipher to encrypt the following messages: (a) Alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ…

A: Introduction: The Vigenère cipher encryption method is a technique for encrypting plaintext by using…

Q: What are the rules of PlayFair cipher?

A: What are the rules of PlayFair cipher?

Q: Many symmetric block ciphers use a similar structure as the Feistel Cipher. Briefly explain the…

A: Feistel block cipher is a structure used to derive many symmetric block ciphers such as DES…

Q: Find the decryption key for the affine cipher with n=26, a=5 and b=8. Encrypt the message with the…

A: Required:   Find the decryption key for the affine cipher with n=26, a=5 and b=8. Encrypt the…