https://x3ric.com/blog/tags/aes/CTF notes, systems work, and writeups.Hugoen-usSat, 06 Jun 2026 21:41:13 +0200https://x3ric.com/blog/posts/HackTheBox-Multipage-Recyclings-Challenge/https://x3ric.com/blog/posts/HackTheBox-Multipage-Recyclings-Challenge/Fri, 31 Jan 2025 09:20:00 +0800challengehtbcryptoaesMultipage Recyclings: abuse the AES misuse, derive the missing key material, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-Permuted-Challenge/https://x3ric.com/blog/posts/HackTheBox-Permuted-Challenge/Fri, 31 Jan 2025 09:20:00 +0800challengehtbcryptorsaaeshashPermuted: exploit the RSA structure, recover the missing secret, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-Whole-Lotta-Candy-Challenge/https://x3ric.com/blog/posts/HackTheBox-Whole-Lotta-Candy-Challenge/Fri, 31 Jan 2025 09:20:00 +0800challengehtbcryptoaesxorWhole Lotta Candy: abuse the AES misuse, derive the missing key material, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-MSS-Challenge/https://x3ric.com/blog/posts/HackTheBox-MSS-Challenge/Thu, 23 Jan 2025 09:20:00 +0800challengehtbcryptorsaaeshashMSS: exploit the RSA structure, recover the missing secret, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-Arranged-Challenge/https://x3ric.com/blog/posts/HackTheBox-Arranged-Challenge/Wed, 22 Jan 2025 09:20:00 +0800challengehtbcryptoaeslatticeecchashArranged: abuse the AES misuse, derive the missing key material, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-Bloom-Bloom-Challenge/https://x3ric.com/blog/posts/HackTheBox-Bloom-Bloom-Challenge/Wed, 22 Jan 2025 09:20:00 +0800challengehtbcryptoaeslatticehashBloom Bloom: abuse the AES misuse, derive the missing key material, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-Iced-Tea-Challenge/https://x3ric.com/blog/posts/HackTheBox-Iced-Tea-Challenge/Wed, 22 Jan 2025 09:20:00 +0800challengehtbcryptoaeseccIced Tea: abuse the AES misuse, derive the missing key material, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-Android-in-the-Middle-Challenge/https://x3ric.com/blog/posts/HackTheBox-Android-in-the-Middle-Challenge/Tue, 07 Jan 2025 09:20:00 +0800challengehtbcryptoaeshashAndroid-in-the-Middle: abuse the AES misuse, derive the missing key material, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-Embryonic-Plant-Challenge/https://x3ric.com/blog/posts/HackTheBox-Embryonic-Plant-Challenge/Fri, 13 Dec 2024 09:20:00 +0800challengehtbcryptoaesprnghashEnter the challenge flag to unlock this writeup.https://x3ric.com/blog/posts/HackTheBox-LostKey-Challenge/https://x3ric.com/blog/posts/HackTheBox-LostKey-Challenge/Fri, 13 Dec 2024 09:20:00 +0800challengehtbcryptorsaaeslatticeecchashEnter the challenge flag to unlock this writeup.https://x3ric.com/blog/posts/HackTheBox-ReMeeting-the-Wheel-Challenge/https://x3ric.com/blog/posts/HackTheBox-ReMeeting-the-Wheel-Challenge/Fri, 13 Dec 2024 09:20:00 +0800challengehtbcryptorsaaeshashEnter the challenge flag to unlock this writeup.https://x3ric.com/blog/posts/HackTheBox-XorXorXor-Challenge/https://x3ric.com/blog/posts/HackTheBox-XorXorXor-Challenge/Fri, 13 Dec 2024 09:20:00 +0800challengehtbcryptoaesxorEnter the challenge flag to unlock this writeup.https://x3ric.com/blog/posts/HackTheBox-Rhome-Challenge/https://x3ric.com/blog/posts/HackTheBox-Rhome-Challenge/Thu, 12 Dec 2024 09:20:00 +0800challengehtbcryptoaesprnghashEnter the challenge flag to unlock this writeup.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.https://x3ric.com/blog/posts/HackTheBox-RsaCtfTool-Challenge/https://x3ric.com/blog/posts/HackTheBox-RsaCtfTool-Challenge/Mon, 09 Dec 2024 09:20:00 +0800challengehtbcryptoaeshashRsaCtfTool: abuse the AES misuse, derive the missing key material, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-Flippin-Bank-Challenge/https://x3ric.com/blog/posts/HackTheBox-Flippin-Bank-Challenge/Sat, 23 Nov 2024 09:20:00 +0800challengehtbcryptoaesprngFlippin Bank: reconstruct the generator state, derive the AES material, and decrypt the final ciphertext.https://x3ric.com/blog/posts/HackTheBox-Hybrid-Unifier-Challenge/https://x3ric.com/blog/posts/HackTheBox-Hybrid-Unifier-Challenge/Sat, 16 Nov 2024 09:20:00 +0800challengehtbcryptoaeshashHybrid Unifier: abuse the AES misuse, derive the missing key material, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-Inizialization-Challenge/https://x3ric.com/blog/posts/HackTheBox-Inizialization-Challenge/Sat, 16 Nov 2024 09:20:00 +0800challengehtbcryptoaesxorInizialization: abuse the AES misuse, derive the missing key material, and decrypt the flag.https://x3ric.com/blog/posts/HackTheBox-SPG-Challenge/https://x3ric.com/blog/posts/HackTheBox-SPG-Challenge/Sat, 16 Nov 2024 09:20:00 +0800challengehtbcryptoaesprnghashSPG: reconstruct the generator state, derive the AES material, and decrypt the final ciphertext.https://x3ric.com/blog/posts/TryHackMe-Flip-Challenge/https://x3ric.com/blog/posts/TryHackMe-Flip-Challenge/Thu, 03 Oct 2024 09:20:00 +0800challengethmcryptoaesxorFlip: abuse the AES misuse, derive the missing key material, and decrypt the flag.