q1- What will be the plain text corresponding to cipher text "PROTO" if vigenere cipher is used with keyword as "HELLO"?

a. QATAR

b. AMERICA

c. WORLD

q2- In Vigenre Cipher, if we use the word ABLE as the keyword, the shift values for each letter in the plaintext will be

a. 0, 1, 11, and 4.

b. 1, 2, 3, and 4.

c. 1, 2, 10, and 3.

d. 0, 1, 2, and 3.

q3- Suppose in order to get a message across enemy lines, we need to choose an initial secret key si decrypted cipher when the original message is 010010011.

• . 1001011
• b. 0011010
• c. 110100
• d. 011011

q4- For a one word of key 77 FA D1 5C and a state word input 37 D4 70 9F what is the output we obtain after the "add round key".

• a. 1E 84 E7 D6
• b. EB 59 8B 1B
• c. F2 38 13 42
• d. 40 2E A1 C3

In Vigenre Cipher, if we use the word ABLE as the keyword, the shift values for each letter in the plaintext will be a. 0,1,11, and 4 . b. 1, 2, 3, and 4 . c. 1,2,10, and 3 . d. 0,1,2, and 3 . x What will be the plain text corresponding to cipher text "PROTO" if vigenere cipher is used with keyword as "HELLO"? a. QATAR b. AMERICA c. WORLD For a one word of key 77FAD15C and a state word input 37 D4 709F what is the output we obtain after the "add round key". a. 1E84E7D6 b. EB 598B1B c. F2381342 x d. 402EA1C3 Suppose in order to get a message across enemy lines, we need to choose an initial secret key si decrypted cipher when the original message is 010010011. a. 1001011 b. 0011010 c. 110100 d. 011011