Solutions

You may view, vote, and submit solutions for a challenge after you have solved it. Please see the FAQ for our policy on sharing solutions.
computer celebrating
Recent Solutions
DateUserChallengeRating
Ck3y XOR Properties 0
syndir Jack's Birthday Hash 0
zgc8562 XOR Properties 0
squ4r00t Bean Counter 0
Voxa ECB Oracle 0
kernel_crow WOTS Up 2 0
cbr4l0k Passwords as Keys 0
wapoy64924 Computing Public Values 0
a1372321 Quadratic Residues 0
a1372321 Favourite byte 0
m0ckinjay Favourite byte 0
S7AN Greatest Common Divisor 0
B0tm4n Quadratic Residues 0
mpg The Matrix 0
red909 Square Eyes 0
Sparrow09 Round Keys 0
Sparrow09 Structure of AES 0
crim_x64 ECB Oracle 0
crim_x64 Triple DES 0
crim_x64 Flipping Cookie 0
rattmanthestupid Encoding Challenge 0
Kless Extended GCD 0
crim_x64 Modular Inverting 0
crim_x64 Structure of AES 0
trihelium Legendre Symbol 0
 


Top Solutions
RankUserChallengeRating
#1 medvedisko XOR Properties 332
#2 oushanmu You either know, XOR you don't 263
#3 Robin_Jadoul Adrien's Signs 206
#4 bigtuple Favourite byte 202
#5 Robin_Jadoul Transparency 118
#6 D00Movenok You either know, XOR you don't 118
#7 thanoskoutr Modular Inverting 112
#8 obormot Greatest Common Divisor 111
#9 amadeus Quadratic Residues 108
#10 Drago Crossed Wires 107
#11 Flecart Legendre Symbol 106
#12 exp101t Modular Binomials 101
#13 Robin_Jadoul Encoding Challenge 91
#14 Robin_Jadoul Structure of AES 88
#15 StormXploit Favourite byte 87
#16 fecell Extended GCD 85
#17 ddddavidee Successive Powers 78
#18 Hon Modular Inverting 66
#19 aloof Exceptional Curves 61
#20 0xEmperor XOR Properties 61
#21 Daneallen Lemur XOR 58
#22 GingerCarrot Extended GCD 56
#23 aloof RSA Backdoor Viability 55
#24 aloof Everything is Still Big 55
#25 Retr0id ECB Oracle 53
#26 shoaloak Lemur XOR 53
#27 boge Favourite byte 52
#28 obormot Modular Arithmetic 1 50
#29 zademn Fast Primes 48
#30 shaloo Greatest Common Divisor 47
#31 Drago Adrien's Signs 46
#32 Drago Jack's Birthday Hash 46
#33 p4b Cofactor Cofantasy 45
#34 aloof Moving Problems 43
#35 Utaha Roll your Own 42
#36 T0t0r0 Parameter Injection 42
#37 aloof Ellipse Curve Cryptography 41
#38 Robin_Jadoul Modular Binomials 41
#39 R4GN4R Privacy-Enhanced Mail? 41
#40 thanoskoutr Modular Arithmetic 2 39
#41 Darumaseye Generators of Groups 39
#42 josephs Cofactor Cofantasy 37
#43 glgspg Round Keys 37
#44 Likkrid Modular Square Root 36
#45 Scalpel Private Keys 36
#46 aschanna123 Backpack Cryptography 35
#47 ctfhacker Modular Square Root 35
#48 Drago Monoprime 35
#49 trillian Vote for Pedro 34
#50 trillian Smooth Criminal 34

Level Up

level up icon

You are now level Current level