Solutions

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Recent Solutions
DateUserChallengeRating
synackrst Quadratic Residues 0
synackrst Modular Inverting 0
boge Broken RSA 0
richwas Logon Zero 0
Dagurb Missing Modulus 0
Mashi Manyprime 0
Mashi Monoprime 0
Mashi Factoring 0
Mashi RSA Signatures 0
Mashi RSA Decryption 0
Mashi Private Keys 0
Mashi Euler's Totient 0
Mashi Public Keys 0
Mashi Symmetry 0
Mashi Flipping Cookie 0
CommandMaster Authentification 2 (Breizh CTF) 0
CommandMaster Authentification 1 (Breizh CTF) 0
KOREONE Authenticated Handshake 0
KOREONE Verilicious (Cyber Apocalypse 2025) 0
KOREONE Pairing-Based Cryptography 0
KOREONE DLOG on the Surface 0
bluediamonds Efficient Exchange 0
i33ie OR Proof 0
i33ie Honest Verifier Zero Knowledge 0
i33ie Special Soundness 0
 


Top Solutions
RankUserChallengeRating
#1 medvedisko XOR Properties 277
#2 oushanmu You either know, XOR you don't 223
#3 Robin_Jadoul Adrien's Signs 184
#4 bigtuple Favourite byte 163
#5 Robin_Jadoul Transparency 113
#6 D00Movenok You either know, XOR you don't 103
#7 Drago Crossed Wires 100
#8 obormot Greatest Common Divisor 96
#9 amadeus Quadratic Residues 95
#10 Flecart Legendre Symbol 94
#11 Robin_Jadoul Encoding Challenge 87
#12 exp101t Modular Binomials 86
#13 thanoskoutr Modular Inverting 85
#14 Robin_Jadoul Structure of AES 81
#15 StormXploit Favourite byte 79
#16 fecell Extended GCD 78
#17 ddddavidee Successive Powers 68
#18 Hon Modular Inverting 65
#19 aloof Exceptional Curves 58
#20 Daneallen Lemur XOR 55
#21 aloof Everything is Still Big 52
#22 aloof RSA Backdoor Viability 50
#23 shoaloak Lemur XOR 50
#24 Retr0id ECB Oracle 49
#25 GingerCarrot Extended GCD 49
#26 obormot Modular Arithmetic 1 47
#27 0xEmperor XOR Properties 45
#28 aloof Moving Problems 43
#29 p4b Cofactor Cofantasy 43
#30 boge Favourite byte 43
#31 Drago Jack's Birthday Hash 43
#32 R4GN4R Privacy-Enhanced Mail? 42
#33 Drago Adrien's Signs 41
#34 zademn Fast Primes 40
#35 aloof Ellipse Curve Cryptography 39
#36 Utaha Roll your Own 39
#37 T0t0r0 Parameter Injection 39
#38 josephs Cofactor Cofantasy 38
#39 shaloo Greatest Common Divisor 37
#40 thanoskoutr Modular Arithmetic 2 36
#41 aschanna123 Backpack Cryptography 34
#42 Robin_Jadoul Modular Binomials 34
#43 Likkrid Modular Square Root 33
#44 Scalpel Private Keys 33
#45 grhkm Real Curve Crypto 32
#46 randomdude999 Vote for Pedro 32
#47 hellman The Matrix Reloaded 32
#48 Drago Monoprime 32
#49 glgspg Round Keys 32
#50 Darumaseye Generators of Groups 32

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