I’m working on a cyber security multi-part question and need an explanation to help me learn.

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.

1. a) How long time will it take you to compromise the complete key by using a brute force attack? (2 point)
2. b) What is the complete secret key? (4 points)
3. c) What is the decrypted text? (2 points)

Note: Provide the screenshot of every step to get full marks.

Question 2 (Cryptool 2) [12 points]
In the Cryptool 2, develop your own RSA digital signature generation and verification component.

1. a) Generate the hash value using built-in SHA-1 module (2 points).
2. b) Generate public and private key using built-in RSA Key Generation module (2points)
3. c) Encrypt has value using built-in RSA Cipher module (2 points)
4. d) Display Signature in text format. (2 points)
5. e) Develop Signature Verification component and display result in text format (4points)

Note: Provide the screenshot of every step to get full marks.