Solutions

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Recent Solutions
DateUserChallengeRating
4n4l1st Base64 0
WildanAliAkbar Modular Exponentiation 0
dXNlcm5hbWU_ The j-invariant 0
MORIS_0101 XOR Properties 0
Beeair19 Bytes and Big Integers 0
OutOfTheWell Flipping Cookie 0
4yru5 Quadratic Residues 0
almutaz9s ASCII 0
shihab Finding Flags 0
fpersona Rhetorical Oracle 0
4yru5 Great Snakes 0
4yru5 Modular Arithmetic 1 0
MaxVX Finding Flags 3
N0tPresl3y Rhetorical Oracle 2 -1
4yru5 Extended GCD 0
N0tPresl3y Rhetorical Oracle -1
4yru5 Greatest Common Divisor 0
4yru5 You either know, XOR you don't 0
4yru5 Favourite byte 0
gokulavasan Adrien's Signs 0
4yru5 XOR Properties 0
4yru5 XOR Starter 2
4yru5 Base64 1
4yru5 Hex 1
4yru5 ASCII 0
 


Top Solutions
RankUserChallengeRating
#1 medvedisko XOR Properties 361
#2 bigtuple Favourite byte 220
#3 Robin_Jadoul Adrien's Signs 210
#4 D00Movenok You either know, XOR you don't 128
#5 Robin_Jadoul Transparency 117
#6 amadeus Quadratic Residues 116
#7 thanoskoutr Modular Inverting 115
#8 Flecart Legendre Symbol 113
#9 Drago Crossed Wires 111
#10 obormot Greatest Common Divisor 110
#11 exp101t Modular Binomials 105
#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 63
#19 aloof Exceptional Curves 62
#20 GingerCarrot Extended GCD 59
#21 Daneallen Lemur XOR 58
#22 boge Favourite byte 58
#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 shaloo Greatest Common Divisor 49
#29 Drago Adrien's Signs 48
#30 Drago Jack's Birthday Hash 48
#31 p4b Cofactor Cofantasy 46
#32 obormot Modular Arithmetic 1 46
#33 T0t0r0 Parameter Injection 44
#34 Utaha Roll your Own 43
#35 Robin_Jadoul Modular Binomials 43
#36 aloof Moving Problems 42
#37 thanoskoutr Modular Arithmetic 2 42
#38 aloof Ellipse Curve Cryptography 41
#39 R4GN4R Privacy-Enhanced Mail? 41
#40 Likkrid Modular Square Root 39
#41 glgspg Round Keys 39
#42 Darumaseye Generators of Groups 39
#43 thanoskoutr Modular Arithmetic 1 38
#44 ctfhacker Modular Square Root 37
#45 Scalpel Private Keys 37
#46 aschanna123 Backpack Cryptography 36
#47 josephs Cofactor Cofantasy 35
#48 trillian Smooth Criminal 35
#49 trillian Vote for Pedro 34
#50 Drago Monoprime 34

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