Task A – Password Cracking

1. Create 6 users in your Linux Terminal, then set the password for each user that

meets the following complexity requirements respectively. You should list the

passwords created for each user. [6 * 5 = 30 points].

1. For user1, the password should be a simple dictionary word (all lowercase)

2. For user2, the password should consist of 4 digits.

3. For user3, the password should consist of a simple dictionary word of any

length characters (all lowercase) + digits.

4. For user4, the password should consist of a simple dictionary word

characters (all lowercase) + digits + symbols.

5. For user5, the password should consist of a simple dictionary word (all

lowercase) + digits.

6. For user6, the password should consist of a simple dictionary word (with a

combination of lower and upper case) + digits + symbols.

Remember, do not use the passwords for your real-world accounts.

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2. Export above users’ hashes into a file named xxx.hash (replace xxx with your

MIDAS name) and use John the Ripper tool to crack their passwords in wordlist

mode (use rockyou.txt). [ 40 points]

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3. Keep your john the ripper cracking for 10 minutes. How many passwords have been

successfully cracked? [30 points]

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