Knowee
Questions
Features
Study Tools

What will be the correct cipher text for the message “Hello” and K = ‘N’ using Auto key cipher.

Question

What will be the correct cipher text for the message “Hello” and K = ‘N’ using Auto key cipher.

🧐 Not the exact question you are looking for?Go ask a question

Solution

To encrypt the message "Hello" using the Autokey Cipher with the key 'N', we need to follow these steps:

Step 1: Assign numerical values to the letters in the message and the key. We can use the convention A=0, B=1, C=2, and so on. In this case, "Hello" becomes [7, 4, 11, 11, 14] and 'N' becomes 13.

Step 2: Create the keystream. The first letter of the keystream is the key. The rest of the keystream is the original message. In this case, the keystream is [13, 7, 4, 11, 11].

Step 3: Add the message and the keystream together modulo 26. The resulting list of numbers is the encrypted message.

[7, 4, 11, 11, 14] (message) [13, 7, 4, 11, 11] (keystream) ------------------- (add modulo 26) [20, 11, 15, 22, 25]

Step 4: Convert the numbers back to letters to get the encrypted message. In this case, [20, 11, 15, 22, 25] becomes "Ulpwz".

So, the correct cipher text for the message “Hello” and K = ‘N’ using Auto key cipher is "Ulpwz".

This problem has been solved

Similar Questions

use the additive cipher with key =15 to encript the message ''hello''

What will be the correct cipher text for the message “money helps” and , using Hill Cipher.

We received the following ciphertext which was encoded with a shift cipher:JGNNQKPFKCPerform an attack against the cipher based on a letter frequency count. What is the cleartext?Letter  Frequency                         Letter     FrequencyA         0.0817                                 N           0.0675B         0.0150                                 O            0.0751C         0.0278                                 P            0.0193D        0.0425                                 Q            0.0010E         0.1270                                 R             0.0599F         0.0223                                 S             0.0633G        0.0202                                 T              0.0906H        0.0609                                 U             0.0276I         0.0697                                 V             0.0098J        0.0015                                 W            0.0236K       0.0077                                  X              0.0015L       0.0403                                  Y             0.0197M     0.0241                                  Z             0.0007

n the case of RC4 stream cipher, the very first step is to initialize the S Vector and T Vector. If the key is HELLO, then the value of T[0x0F] will be

What will be the correct cipher text for the message “money helps” and , using Hill Cipher. Group of answer choicesUNPAW YOELFUNKWA YOELEUNKAW YOELFUNPAW YOELEUNKWA YOELE

1/1

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.