Solutions

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Recent Solutions
DateUserChallengeRating
Kran Favourite byte 0
rito_sand Legendre Symbol 0
TeraP Greatest Common Divisor 0
TeraP You either know, XOR you don't 0
TeraP XOR Properties 0
TeraP Favourite byte 0
erenlander RSA Signatures 0
rito_sand Greatest Common Divisor 0
erenlander RSA Decryption 0
erenlander Euler's Totient 0
erenlander Public Keys 0
rito_sand You either know, XOR you don't 0
Voxa Smooth Criminal 0
Mard DLOG on the Surface 0
Mard Montgomery Curves 0
Mard Image Point Arithmetic 0
Mard Where's the Supersingular Curve 0
Mard The j-invariant 0
4rg0 Lemur XOR 0
4rg0 Passwords as Keys 0
4rg0 Bringing It All Together 0
4rg0 Round Keys 0
4rg0 Diffusion through Permutation 0
Alfaepsilon Modulus Inutilis 0
4rg0 Confusion through Substitution 0
 


Top Solutions
RankUserChallengeRating
#1 medvedisko XOR Properties 358
#2 bigtuple Favourite byte 219
#3 Robin_Jadoul Adrien's Signs 210
#4 D00Movenok You either know, XOR you don't 127
#5 Robin_Jadoul Transparency 118
#6 amadeus Quadratic Residues 116
#7 Flecart Legendre Symbol 114
#8 thanoskoutr Modular Inverting 113
#9 Drago Crossed Wires 111
#10 obormot Greatest Common Divisor 111
#11 exp101t Modular Binomials 104
#12 StormXploit Favourite byte 93
#13 Robin_Jadoul Encoding Challenge 90
#14 Robin_Jadoul Structure of AES 89
#15 fecell Extended GCD 85
#16 ddddavidee Successive Powers 78
#17 0xEmperor XOR Properties 70
#18 Hon Modular Inverting 64
#19 aloof Exceptional Curves 62
#20 GingerCarrot Extended GCD 59
#21 Daneallen Lemur XOR 58
#22 boge Favourite byte 57
#23 aloof Everything is Still Big 56
#24 aloof RSA Backdoor Viability 55
#25 shoaloak Lemur XOR 54
#26 Retr0id ECB Oracle 53
#27 zademn Fast Primes 50
#28 obormot Modular Arithmetic 1 49
#29 shaloo Greatest Common Divisor 49
#30 Drago Jack's Birthday Hash 48
#31 Drago Adrien's Signs 47
#32 p4b Cofactor Cofantasy 46
#33 T0t0r0 Parameter Injection 44
#34 aloof Moving Problems 43
#35 Utaha Roll your Own 43
#36 Robin_Jadoul Modular Binomials 42
#37 aloof Ellipse Curve Cryptography 41
#38 R4GN4R Privacy-Enhanced Mail? 41
#39 thanoskoutr Modular Arithmetic 2 41
#40 Likkrid Modular Square Root 40
#41 Darumaseye Generators of Groups 40
#42 josephs Cofactor Cofantasy 37
#43 ctfhacker Modular Square Root 37
#44 glgspg Round Keys 37
#45 Scalpel Private Keys 37
#46 aschanna123 Backpack Cryptography 36
#47 thanoskoutr Modular Arithmetic 1 36
#48 trillian Smooth Criminal 35
#49 Drago Monoprime 35
#50 trillian Vote for Pedro 34

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