# Baby Encription

Platform: HTB.

Mission: Desencripte The especial message.

* Unzip the carpet, you will have 2 files one python with the logic to encript the flag and the other with the flag encripted. descomprime la carpeta, encontraras dos archivos 1 sera el codigo python que tiene la logica de la encriptacion de la flag y la otra sera la flag encriptada.

<figure><img src="/files/zF8D5H3rNzP00nTV510f" alt=""><figcaption><p>The content of both files.</p></figcaption></figure>

La solución seria, cambiar la ecuacion para que la flag se otorgue en texto leible. the solution is change the ecuation so you can have the flag desencripte.&#x20;

```
// 
fd = open(‘./msg.enc’,’r’)

secret = fd.read()
ct = bytes.fromhex(secret)

decrypted_str = “”

for char in ct:
for brute_val in range(33, 126):
if ((123 * brute_val + 18) % 256) == char:
decrypted_str += chr(brute_val)
break

print(decrypted_str)
```

Execute the script:

```
// 
HTB{l00k_47_y0u_r3v3rs1ng_3qu4710n5_c0ngr475}
```

Y tendriamos la flag, and we get the flag.


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