The Decryption Challenge
Work backwards to decipher the intercepted data, then answer the final exam question.
Mission Brief:
You have intercepted a wireless transmission. It is encrypted, but our system has discovered the Key. To decrypt the message, you must reverse the algorithm. If the key is a '+3 shift', you must shift each letter backwards by 3 in the alphabet.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Transmission 1 of 3
0 / 3 DecryptedIntercepted Ciphertext
Encryption Key Used: +3 Shift
AO3
Final Assessment
You successfully decrypted the data because you were given the Key. In the real world, if a hacker intercepts a school's wireless network but does not have the encryption key, why is the network still considered secure?