04-12-2025, 03:11 PM
Challenge: Not that random is a medium difficulty cryptography challenge on Hack The Box.
Audience: This write-up is for new users with little HTB challenge experience.
Challenge author:
25 User solves (as of 2025/04/12).
Skills learned: sha256
Official write-up: https://app.hackthebox.com/challenges/No...lkthroughs
CHALLENGE DESCRIPTION
Uncertain of their safety from other potentially hostile communities, the survivors recognize the necessity of arming themselves with laser weapons and flamethrowers for self-defense. Rumor has it that an old casino on the city's outskirts holds advanced weaponry. However, to gain access to this private area, an uninvited visitor must play a seemingly impossible game of chance and accumulate a specific amount of winnings. Is the challenge as it appears, or can you prove them wrong?
Steps:
The zip file contains a Python script server.py that runs the challenge guessing game.
'''
$ conda install pycryptodome -y
$ python server.py
Welcome to my online casino! Let's play a game!
Make a choice:
1. Buy flag (-500 coins)
2. Buy hint (-10 coins)
3. Play (+5/-10 coins)
4. Print balance (free)
5. Exit
Option: 4
You have 100 coins.
'''
Follow official walk-thru starting on page 2 to complete the challenge.
Have fun!
Audience: This write-up is for new users with little HTB challenge experience.
Challenge author:
25 User solves (as of 2025/04/12).
Skills learned: sha256
Official write-up: https://app.hackthebox.com/challenges/No...lkthroughs
CHALLENGE DESCRIPTION
Uncertain of their safety from other potentially hostile communities, the survivors recognize the necessity of arming themselves with laser weapons and flamethrowers for self-defense. Rumor has it that an old casino on the city's outskirts holds advanced weaponry. However, to gain access to this private area, an uninvited visitor must play a seemingly impossible game of chance and accumulate a specific amount of winnings. Is the challenge as it appears, or can you prove them wrong?
Steps:
- Start challenge server hosted on Hack The Box.
- Click on Download Files -- file password and sha256 fingerprint is displayed when Download Files button is clicked.
- Extract zip file contents to a local folder.
- Open server.py and review Python source code
The zip file contains a Python script server.py that runs the challenge guessing game.
- Install dependencies:
'''
$ conda install pycryptodome -y
$ python server.py
Welcome to my online casino! Let's play a game!
Make a choice:
1. Buy flag (-500 coins)
2. Buy hint (-10 coins)
3. Play (+5/-10 coins)
4. Print balance (free)
5. Exit
Option: 4
You have 100 coins.
'''
Follow official walk-thru starting on page 2 to complete the challenge.
Have fun!