H1DD3N P455 - CTF 51

IHC Blog

CTF Name: H1DD3N P455

Topic: Cryptography

Level: Beginner

Flag Format: IHC_CTF{}

CTF Link: https://t.me/ctf_invisiblehc/86

Description: 

Decrypt the text with a hidden pass.


Solution:

We found a encrypted text in a challenge image. We figured out it was encrypted using Vigenere cipher. 

By checking the image's metadata, we found the decryption key "CTFIHC." Using this key, we unlocked the message and got the flag.

flag: IHC_CTF{H1DD3N_P455_CRYP70_602}

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