COU4306 Quiz 2

Encrypt the message 'attacktomorrow' using the Caesar cipher.

• worrowkcattata

• dwwdfnwrpruuxrz

• qwertyuiopasdf

• cvvcemvqoqttqty

Encrypt the message 'meetmeatcalifornia' using the Vigenère cipher.

• JSJKJGKRAOOAOIRGV

• WIQPGAMJFUHRTAJNF

• SECRETSECRETSECRET

• EIGKQXSXERPBXSTEMT

Use the Vernam cipher to encrypt 'enterat3pm' (use the binary value of 3)
Encryption key: 'month'

• I D E X W M D O C L

• I D A M E R W A W A

• Q R Y U C 2 4 C A G

• 1 G 9 C Z A S R T V

What are the main drawbacks you saw in the above encryption?

• Cannot perform the XOR operation on binary values

• Letters and numbers share the same numerical or binary value

• Cannot decrypt the cipher text

• No option for spaces

Decrypt using the one-time pad cipher. Use the key 'SecRet'

Cipher text: 'US NUL STX $ NUL T DC3 T S'

• Leave now

• Leave @10

• Attack@10

• Secret@11

Download the image and use the steganography decryption tool to get the hidden message.