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 ECLCG (HITCON CTF) 0 4 solves
CTF Archive Sus (ImaginaryCTF) 0 6 solves
CTF Archive Share (HITCON CTF) 0 4 solves
CTF Archive Leet Universe (ImaginaryCTF (Daily)) 0 12 solves
CTF Archive Hyper512 (HITCON CTF) 0 7 solves
CTF Archive Maybe Someday (GoogleCTF) 0 3 solves
CTF Archive Hamiltonicity 2 (CryptoHack) 0 61 solves
CTF Archive Fischlin's Transformation (CryptoHack) 0 69 solves
CTF Archive OR Proof (CryptoHack) 0 152 solves
CTF Archive Ticket Maestro (CryptoHack) 0 49 solves
CTF Archive Additional problems (CSC Belgium) 0 7 solves
CTF Archive Hamiltonicity (CryptoHack) 0 106 solves
Symmetric Ciphers Pad Thai 80 297 solves
Symmetric Ciphers The Good, The Pad, The Ugly 100 237 solves
Symmetric Ciphers Oracular Spectacular 150 142 solves
Hash Functions Merkle Trees 25 254 solves
Elliptic Curves Checkpoint 150 94 solves
Elliptic Curves An Evil Twisted Mind 175 85 solves
Elliptic Curves A Twisted Mind 80 114 solves
Elliptic Curves An Exceptional Twisted Mind 125 75 solves
Isogenies Introduction to Isogenies 10 311 solves
Isogenies Montgomery Curves 30 192 solves
Isogenies Where's the Supersingular Curve 25 224 solves
Isogenies Image Point Arithmetic 30 213 solves
Isogenies DLOG on the Surface 40 144 solves
Isogenies The j-invariant 20 269 solves
Isogenies Better than Linear 85 98 solves
Isogenies Meet me in the Claw 120 72 solves
Isogenies André Encoding 80 93 solves
Isogenies Dual Masters 90 77 solves
Isogenies What's My Kernel 70 102 solves
Isogenies Abelian SIDH 90 82 solves
Isogenies A True Genus 175 61 solves
Isogenies Secret Exponents 60 117 solves
Isogenies Special Isogenies 30 125 solves
Isogenies Twisted CSIDH Isogenies 70 115 solves
Isogenies Prime Power Isogenies 50 124 solves
Isogenies CSIDH Key Exchange 90 108 solves
Isogenies Composite Isogenies 60 144 solves
Isogenies Breaking SIDH 250 76 solves
Isogenies Three Isogenies 35 151 solves
Isogenies SIDH Key Exchange 80 136 solves
Isogenies Two Isogenies 30 152 solves
ZKPs Mister Saplin's Preview 80 100 solves
ZKPs Mister Saplins The Prover 125 96 solves
ZKPs Pairing-Based Cryptography 50 125 solves
ZKPs Let's Prove It Again 175 80 solves
ZKPs Couples 100 88 solves
ZKPs Let's Prove It 120 85 solves
ZKPs Hamiltonicity 2 175 74 solves
 


Least Solved
CategoryChallengePointsSolves
CTF Archive Maybe Someday (GoogleCTF) 0 3 solves
CTF Archive ECLCG (HITCON CTF) 0 4 solves
CTF Archive Share (HITCON CTF) 0 4 solves
CTF Archive diffecient (SekaiCTF) 0 5 solves
CTF Archive Sus (ImaginaryCTF) 0 6 solves
CTF Archive Additional problems (CSC Belgium) 0 7 solves
CTF Archive Authenticator (Firebird Internal CTF) 0 7 solves
CTF Archive Functional (ICC Athens) 0 7 solves
CTF Archive Hyper512 (HITCON CTF) 0 7 solves
CTF Archive Maybe Someday (Maybe Someday CTF) 0 7 solves
CTF Archive GLP420 (HackTM CTF) 0 7 solves
CTF Archive FaILProof Revenge (SekaiCTF) 0 7 solves
CTF Archive Substitution Cipher III (DownUnderCTF) 0 8 solves
CTF Archive unrandom DSA (HackTM CTF) 0 8 solves
CTF Archive RSA Permutation (WACON) 0 10 solves
CTF Archive Key recovery (DCTF) 0 10 solves
CTF Archive C0ll1d3r (Firebird Internal CTF) 0 10 solves
CTF Archive RSA Secret Sharing (WACON) 0 11 solves
CTF Archive Probability (SEETF) 0 11 solves
CTF Archive Signature (TSJ CTF) 0 11 solves
CTF Archive SpongeBob SquarePants / Battle for Bikini Bottom - Rehydrated (HTB Cyber Apocalypse) 0 11 solves
CTF Archive broken oracle (HackTM CTF) 0 12 solves
CTF Archive Leet Universe (ImaginaryCTF (Daily)) 0 12 solves
CTF Archive Sign In Please, Again (HKCERT CTF) 0 12 solves
CTF Archive FaILProof (SekaiCTF) 0 12 solves

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