PicoCTF - HashingJobApp

Challenge

Tags

Beginner picoMini 2022 / General skill / shell / python / nc / hashing

Description

If you want to hash with the best, beat this test!

nc saturn.picoctf.net 54555

Writeup

1. Run command nc saturn.picoctf.net 54555
2. Create a python script to transfer string to md5 hash

    import hashlib
    import sys
   
    def give_me_md5_hash(str):
      result = hashlib.md5((str).encode())
   
      # printing the equivalent hexadecimal value.
      print("The hexadecimal equivalent of hash is : ", end ="")
      print(result.hexdigest())
         
    give_me_md5_hash(sys.argv[1])
   

   Execute script in this way :

     python3 HashingJobApp.py "some string" 
     # The hexadecimal equivalent of hash is : 53a09ce3db9c4d42c862dc0e29d777e5
   

3. It will ask you for md5 hash of string it give three times like below.
4. Here’s flag: picoCTF{4ppl1c4710n_r3c31v3d_674c1de2} ٩(^ᴗ^)۶