Vrypto - CTF 24

CTF Name: Vrypto

Topic: Cryptography

Flag Format: IHC_CTF{}

CTF Link: https://t.me/ctf_invisiblehc/40

Description:

Decrypt the cipher text and find the flag. 

Stay with "IHC"

Solution:

We opened the challenge file and found a secret message. When we decoded it from Base58, there was another cipher in Base32. After decoding that, we got one more encrypted text.

The challenge's name suggests it might be  Vigenère cipher, and after closely examining the challenge description, we identified the key: "IHC" 

Using the following website to decrypt the cipher: https://cryptii.com/pipes/vigenere-cipher

we successfully decrypted the text and found the flag.

flag: IHC_CTF{H3110_W021D_kdjfhe}

Join Our CTF Channel: https://t.me/ctf_invisiblehc