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Problems for LyonCTF 2025


Problem Types Points
LyonCTF Sanity Check General 10
LyonCTF Crypto 1: HenryZ's secret Cryptography 100
LyonCTF Crypto 2: Duck Cryptography 200
LyonCTF Crypto 3: Coppersmith in RSA Cryptography 300
LyonCTF Crypto 4: HenryZ's back at it again! Cryptography 400
LyonCTF Forensics 1: Plane Spotting I Forensics 100
LyonCTF Forensics 2: Extensions Forensics 200
LyonCTF Forensics 3: Plane Spotting II Forensics 300
LyonCTF Forensics 4: Blood in the Water Forensics 400
LyonCTF Rev 1: Just Some Normal Code Reverse Engineering 100
LyonCTF Rev 2: ICS Deadline Reverse Engineering 200
LyonCTF Rev 3: Debug Reverse Engineering 300
LyonCTF Web Exploitation 1: Bob's Portfolio Web Exploitation 100
LyonCTF Web Exploitation 2: The Return of Bob's Portfolio Web Exploitation 200
LyonCTF Web Exploitation 3: Terminal Web Exploitation 300
LyonCTF Binex 1: A Number Program Binary Exploitation 100
LyonCTF Binex 2: I Love Heaps! Binary Exploitation 200
LyonCTF Binex 3: Study Buddy Binary Exploitation 300
LyonCTF Misc 1: FIller General 100
LyonCTF Misc 2: caesar salad? General 200
LyonCTF Misc 3: A Cryptic Surprise General 300
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