New Challenges

This page contains lists of recent and most difficult challenges. To play the challenges, please go to the challenges section.
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Recently Released
CategoryChallengePointsSolves
CTF Archive Blind (ECSC 2023 (Norway)) 0 16 solves
CTF Archive WOTS Up (ECSC 2023 (Norway)) 0 22 solves
CTF Archive Irish flan (ECSC 2023 (Norway)) 0 10 solves
CTF Archive WOTS Up 2 (ECSC 2023 (Norway)) 0 22 solves
CTF Archive Twist and shout (ECSC 2023 (Norway)) 0 14 solves
CTF Archive Hide and seek (ECSC 2023 (Norway)) 0 23 solves
CTF Archive Put a ring on it (ECSC 2023 (Norway)) 0 10 solves
CTF Archive RRSSAA (ECSC 2023 (Norway)) 0 36 solves
CTF Archive Tough decisions (ECSC 2023 (Norway)) 0 20 solves
CTF Archive What a Curve! (Breizh CTF) 0 9 solves
CTF Archive GLP420 (HackTM CTF) 0 5 solves
CTF Archive unrandom DSA (HackTM CTF) 0 4 solves
CTF Archive kaitenzushi (HackTM CTF) 0 16 solves
CTF Archive d-phi-enc (HackTM CTF) 0 65 solves
CTF Archive broken oracle (HackTM CTF) 0 11 solves
Elliptic Curves Digestive 60 326 solves
Misc RSA vs RNG 150 233 solves
Crypto on the Web Decrypting TLS 1.3 35 474 solves
Crypto on the Web Decrypting TLS 1.2 30 513 solves
Crypto on the Web Authenticated Handshake 40 238 solves
Crypto on the Web Megalomaniac 3 120 105 solves
Crypto on the Web Megalomaniac 2 120 92 solves
Crypto on the Web Megalomaniac 1 100 145 solves
Post-Quantum LWE High Bits Message 15 393 solves
Post-Quantum Nativity 60 194 solves
Post-Quantum LWE Background 5 829 solves
Post-Quantum LWE Low Bits Message 20 353 solves
Post-Quantum From Private to Public Key LWE 25 373 solves
Post-Quantum LWE Intro 10 576 solves
Post-Quantum Missing Modulus 80 164 solves
Post-Quantum Noise Free 40 281 solves
Post-Quantum Noise Cheap 90 126 solves
CTF Archive 1n_jection (Zh3r0 CTF V2) 0 19 solves
CTF Archive FaILProof (SekaiCTF) 0 10 solves
CTF Archive Real Mersenne (Zh3r0 CTF V2) 0 11 solves
CTF Archive C0ll1d3r (Firebird Internal CTF) 0 5 solves
CTF Archive FaILProof Revenge (SekaiCTF) 0 6 solves
CTF Archive Chaos (Zh3r0 CTF V2) 0 13 solves
CTF Archive import numpy as MT (Zh3r0 CTF V2) 0 11 solves
CTF Archive Twist and Shout (Zh3r0 CTF V2) 0 12 solves
CTF Archive diffecient (SekaiCTF) 0 4 solves
CTF Archive Key Backup Service 2 (HKCERT CTF) 0 13 solves
CTF Archive Sratslla SEA (HKCERT CTF) 0 8 solves
CTF Archive Maybe Someday (Maybe Someday CTF) 0 6 solves
CTF Archive Lack of Entropy (Firebird Internal CTF) 0 26 solves
CTF Archive Tenet: The Plagarism (HKCERT CTF) 0 13 solves
CTF Archive Authenticator (Firebird Internal CTF) 0 3 solves
CTF Archive Cipher Mode Picker (HKCERT CTF) 0 29 solves
CTF Archive A Joke Cipher (HKCERT CTF) 0 29 solves
CTF Archive Sign In Please, Again (HKCERT CTF) 0 9 solves
 


Least Solved
CategoryChallengePointsSolves
CTF Archive Authenticator (Firebird Internal CTF) 0 3 solves
CTF Archive diffecient (SekaiCTF) 0 4 solves
CTF Archive unrandom DSA (HackTM CTF) 0 4 solves
CTF Archive GLP420 (HackTM CTF) 0 5 solves
CTF Archive C0ll1d3r (Firebird Internal CTF) 0 5 solves
CTF Archive Substitution Cipher III (DownUnderCTF) 0 6 solves
CTF Archive Functional (ICC Athens) 0 6 solves
CTF Archive Maybe Someday (Maybe Someday CTF) 0 6 solves
CTF Archive FaILProof Revenge (SekaiCTF) 0 6 solves
CTF Archive Key recovery (DCTF) 0 7 solves
CTF Archive RSA Secret Sharing (WACON) 0 8 solves
CTF Archive Signature (TSJ CTF) 0 8 solves
CTF Archive RSA Permutation (WACON) 0 8 solves
CTF Archive Sratslla SEA (HKCERT CTF) 0 8 solves
CTF Archive Probability (SEETF) 0 9 solves
CTF Archive What a Curve! (Breizh CTF) 0 9 solves
CTF Archive SpongeBob SquarePants / Battle for Bikini Bottom - Rehydrated (HTB Cyber Apocalypse) 0 9 solves
CTF Archive Sign In Please, Again (HKCERT CTF) 0 9 solves
CTF Archive Put a ring on it (ECSC 2023 (Norway)) 0 10 solves
CTF Archive Irish flan (ECSC 2023 (Norway)) 0 10 solves
CTF Archive FaILProof (SekaiCTF) 0 10 solves
CTF Archive 1337crypt v2 (DownUnderCTF) 0 11 solves
CTF Archive Real Mersenne (Zh3r0 CTF V2) 0 11 solves
CTF Archive broken oracle (HackTM CTF) 0 11 solves
CTF Archive Unbalanced (ICC Athens) 0 11 solves

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