Summary Introduction Binary Exploitation Doubly Dangerous [110 points] Simple ROP [120 points] Heaps of Knowledge [420 points] Cryptography Flip My Letters [20 points] RSA 1 [50 points] Hash on Hash [100 points] Security Through Obscurity [150 points] RSA 4 [200 points] Genius [230 points] Premium RSA [350 points] Paillier Service [400 points] Forensics 20xx [50 points] Mane Event [50 points] Petty Difference [75 points] Flag PEG [150 points] Finn [200 points] Serial [300 points] Decomphose [325 points] QR 2 [330 points] Bizzaro [400 points] Programming Hello, world! [10 points] Fzz Buzz 2 [200 points] Match Me [300 points] Reverse Engineering Useless Python [50 points] Phunky Python II [115 points] Hex QR [200 points] 67k [400 points] Web Cookie Blog [30 points] TinyEval [100 points] Web Tunnel [260 points]