D1533/CTF-scripts

## CTF 脚本 本仓库包含针对各种 CTF 挑战的脚本解决方案。 ## 目录 ### CryptoPals | 挑战 | 集合 | 脚本 | |-----------------------------------------------|-------|----------------------------------------| | 01. Convert hex to base64 | Set 1 |[challenge_01.py](set1/challenge_01.py) | | 02. Fixed XOR | Set 1 |[challenge_02.py](set1/challenge_02.py) | | 03. Single-byte XOR cipher | Set 1 |[challenge_03.py](set1/challenge_03.py) | | 04. Detect single-character XOR | Set 1 |[challenge_04.py](set1/challenge_04.py) | | 05. Implement repeating-key XOR | Set 1 |[challenge_05.py](set1/challenge_05.py) | | 06. Break repeating-key XOR | Set 1 |[challenge_06.py](set1/challenge_06.py) | | 07. AES in ECB mode | Set 1 |[challenge_07.py](set1/challenge_07.py) | | 08. Detect AES in ECB mode | Set 1 |[challenge_08.py](set1/challenge_08.py) | | 09. Implement PKCS#7 padding | Set 2 |[challenge_09.py](set2/challenge_09.py) | | 10. Implement CBC mode | Set 2 |[challenge_10.py](set2/challenge_10.py) | | 11. An ECB/CBC detection oracle | Set 2 |[challenge_11.py](set2/challenge_11.py) | | 12. Byte-at-a-time ECB decryption (Simple) | Set 2 |[challenge_12.py](set2/challenge_12.py) | | 13. ECB cut-and-paste | Set 2 |[challenge_13.py](set2/challenge_13.py) | | 14. Byte-at-a-time ECB decryption (Harder) | Set 2 |[challenge_14.py](set2/challenge_14.py) | | 15. PKCS#7 padding validation | Set 2 |[challenge_15.py](set2/challenge_15.py) | | 16. CBC bitflipping attacks | Set 2 |[challenge_16.py](set2/challenge_16.py) | | 17. The CBC Padding oracle | Set 3 |[challenge_17.py](set3/challenge_17.py) | ### Hack The Box | 挑战 | 类别 | 脚本 | 主题 | |-----------------------|----------|------------------------------------------------------------------------|-------------------------------------------------------------------| | Alpashcii Clashing | crypto | [alphascii_clashing.py](htb/crypto/alphascii_clashing.py) | MD5 hash collision. | | Ancient Encodings | crypto | [ancient_encodings.py](htb/crypto/ancient_encodings.py) | Base64, hex encodings. | | Android in the Middle | crypto | [android_in_the_middle.py](htb/crypto/android_in_the_middle.py) | Diffie-Hellman. Choosen Public Key Attack. | | Arranged | crypto | [arranged.py](htb/crypto/arranged.py) | ECC. Small subgroup discrete log. | | Baby quick maffs | crypto | [baby_quick_maffs.py](htb/crypto/baby_quick_maffs.py) | Modular arithmetic. Equation manipulation. | | Binary basis | crypto | [binary_basis.py](htb/crypto/binary_basis.py) | RSA. Multiple primes encoding. | | Brainy's Cipher | crypto | [brainys_cipher.py](htb/crypto/brainys_cipher.py) | RSA. Chinese Remainder Theorem. | | Brevi Moduli | crypto | [brevi_moduli.py](htb/crypto/brevi_moduli.py) | RSA. Small modulus factorization. | | Digital Safety Annex | crypto | [digital_safety_annex.py](htb/crypto/digital_safety_annex.py) | DSA. Nonce $k$ brute force. | | Fast Carmichael | crypto | [fast_carmichael.py](htb/crypto/fast_carmichael.py) | Carmichael numbers. Find the paper challenge. | | Flippin Bank | crypto | [flippin_bank.py](htb/crypto/flippin_bank.py) | AES. Flipping bit attack. | | Gonna lift em all | crypto | [gonna_lift_em_all.py](htb/crypto/gonna_lift_em_all.py) | ElGamal. Implementation flaw. | | Hidden Handshake | crypto | [hidden_handshake.py](htb/crypto/hidden_handshake.py) | AES CTR. Known Plaintext attack. | | Initialization | crypto | [initialization.py](htb/crypto/initialization.py) | AES.CTR. Known Plaintext attack. | | Lost Key | crypto | [lostkey.py](htb/crypto/lostkey.py) | ECC. Curve parameters recovery. Pohlig-Hellman. | | Lost Modulus | crypto | [lost_modulus.py](htb/crypto/lost_modulus.py) | RSA. Small exponent without message padding. | | Lost Modulus Again | crypto | [lost_modulus_again.py](htb/crypto/lost_modulus_again.py) | RSA. Coppersmith's short pad attack. | | Nuclear Sale | crypto | [nuclear_sale.py](htb/crypto/nuclear_sale.py) | .pcap analysis | | Optimus Prime | crypto | [optimus_prime.py](htb/crypto/optimus_prime.py) | RSA. Shared prime on different keys. GCD attack | | Quadratic Points | crypto | [quadratic_points.py](htb/crypto/quadratic_points.py) | Integer polynomial coefficients recovery. ECC discrete log. CRT. | | RLotto | crypto | [rlotto.py](htb/crypto/rlotto.py) | PRNG. Time seed | | Rookie Mistake | crypto | [rookie_mistake.py](htb/crypto/rookie_mistake.py) | RSA. Implementation fault. | | Secure Signing | crypto | [secure_signing.py](htb/crypto/secure_signing.py) | SHA256. Byte at a time Oracle Attack | | Sekur Julius | crypto | [sekur_julius.py](htb/crypto/sekur_julius.py) | Caesar cipher brute force. | | SPG | crypto | [spg.py](htb/crypto/spg.py) | AES. Weak random key recovery. | | Spooky RSA | crypto | [spooky_rsa.py](htb/crypto/spooky_rsa.py) | RSA. Encrypted prime. GCD attack. | | Sugar Free Candies | crypto | [sugar_free_candies.py](htb/crypto/sugar_free_candies.py) | Integer equation system. | | Symbols | crypto | [symbols.py](htb/crypto/symbols.py) | Legendre symbol. | | Two for One | crypto | [two_for_one.py](htb/crypto/two_for_one.py) | RSA. Polynomial gcd. Franklin-reiter attack. | | Weak RSA | crypto | [weak_rsa.py](htb/crypto/weak_rsa.py) | RSA. Small $d$. Wiener Attack. | ### TAMUctf 2026 | 挑战 | 类别 | 脚本 | 主题 | |-----------------------|----------|------------------------------------------------------------------------------------------------|-------------------------------------------| | Abnormal Ellipse | crypto | [abnormal_ellipse.py](TAMUctf-2026/crypto/abnormal-ellipse/abnormal_ellipse.py) | ECC. Smart Attack. | | Hidden Log Factoring | crypto | [hidden_log_factoring.py](TAMUctf-2026/crypto/hidden_log_factoring/hidden_log_factoring.py) | RSA. Pohlig-Hellman. Factor $N$ from $d$. |

标签：AES, CBC, CryptoPals, CTF Writeup, CTF工具, CTF脚本, CTF解题, ECB, PKCS#7, Python, Web安全, Writeup, XOR, 加密算法, 填充, 夺旗赛, 威胁模拟, 安全竞赛, 密码学, 手动系统调用, 无后门, 漏洞搜索, 脚本集合, 蓝队分析, 解密脚本, 逆向工具