Question: Question 1 (Cryptool 1) [8 points] A DES encrypted message is given in the DES_cipher.txt file. You have been lucky; you have seen some part

Question 1 (Cryptool 1) [8 points] A DES encrypted message is given in the DES_cipher.txt file. You have been lucky; you have seen some part of the key 12 34 56 78 90 ** ** **. With the help of Cryptool 1, break the key and decipher the given text. a) How long time will it take you to compromise the complete key by using a brute force attack? (2 point) b) What is the complete secret key? (4 points) c) What is the decrypted text? (2 points) Note: Provide the screenshot of every step to get full marks.

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