https://x3ric.com/blog/tags/vigenere/CTF notes, systems work, and writeups.Hugoen-usSat, 06 Jun 2026 21:41:13 +0200https://x3ric.com/blog/posts/HackTheBox-Classic-yet-complicated-Challenge/https://x3ric.com/blog/posts/HackTheBox-Classic-yet-complicated-Challenge/Wed, 22 Jan 2025 09:20:00 +0800challengehtbcryptovigenereClassic, yet complicated: recover the Vigenere key from the ciphertext, decrypt the message, and verify the flag.https://x3ric.com/blog/posts/HackTheBox-Perfect-Synchronization-Challenge/https://x3ric.com/blog/posts/HackTheBox-Perfect-Synchronization-Challenge/Wed, 11 Dec 2024 09:20:00 +0800challengehtbcryptoaeseccvigenerePerfect Synchronization: recover the Vigenere key from the ciphertext, decrypt the message, and verify the flag.