COMPUTER THREATS SECURITY
TYPES OF COMPUTER SECURITY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Convert “GJGB” cipher-text back into plain text using the key:1
|
|
FIFA
|
|
|
HKHC
|
|
|
EHEZ
|
|
|
JMER
|
Explanation:
Detailed explanation-1: -The process of converting ciphertext to plain text is called decryption.
Detailed explanation-2: -decryption – the process of reverting ciphertext to plaintext (occasionally ‘decipherment’).
Detailed explanation-3: -The Caesar cipher shifts all the letters in a piece of text by a certain number of places. The key for this cipher is a letter which represents the number of place for the shift. So, for example, a key D means “shift 3 places” and a key M means “shift 12 places”.
There is 1 question to complete.