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
Gvriel XOR Properties 0
Papascruff SSH Keys 0
Papascruff Privacy-Enhanced Mail? 0
Papascruff Quadratic Residues 0
Und3aD_gh0sT Greatest Common Divisor 0
Und3aD_gh0sT You either know, XOR you don't 0
Papascruff Greatest Common Divisor 0
Papascruff Favourite byte 0
Papascruff XOR Properties 0
Papascruff Encoding Challenge -1
nomemio The Good, The Pad, The Ugly 0
nomemio Pad Thai 0
BobbyLiu Quadratic Residues 0
nomemio Oh SNAP 0
numberFreak Confusion through Substitution 0
numberFreak Extended GCD 0
numberFreak Greatest Common Divisor 0
numberFreak Round Keys 0
numberFreak Favourite byte 0
numberFreak Encoding Challenge 0
numberFreak Structure of AES 0
BobbyLiu Greatest Common Divisor 0
ic3d_lemon Too Many Errors 0
ic3d_lemon Static Client 2 0
ic3d_lemon Noise Cheap 0
 


Top Solutions
RankUserChallengeRating
#1 medvedisko XOR Properties 279
#2 oushanmu You either know, XOR you don't 227
#3 Robin_Jadoul Adrien's Signs 186
#4 bigtuple Favourite byte 162
#5 Robin_Jadoul Transparency 113
#6 D00Movenok You either know, XOR you don't 105
#7 Drago Crossed Wires 101
#8 amadeus Quadratic Residues 97
#9 obormot Greatest Common Divisor 97
#10 Flecart Legendre Symbol 96
#11 exp101t Modular Binomials 87
#12 Robin_Jadoul Encoding Challenge 87
#13 thanoskoutr Modular Inverting 87
#14 Robin_Jadoul Structure of AES 83
#15 StormXploit Favourite byte 80
#16 fecell Extended GCD 79
#17 ddddavidee Successive Powers 68
#18 Hon Modular Inverting 65
#19 aloof Exceptional Curves 59
#20 Daneallen Lemur XOR 55
#21 aloof Everything is Still Big 52
#22 aloof RSA Backdoor Viability 51
#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 47
#28 boge Favourite byte 44
#29 aloof Moving Problems 43
#30 p4b Cofactor Cofantasy 43
#31 Drago Jack's Birthday Hash 43
#32 Drago Adrien's Signs 42
#33 R4GN4R Privacy-Enhanced Mail? 42
#34 zademn Fast Primes 41
#35 Utaha Roll your Own 40
#36 T0t0r0 Parameter Injection 40
#37 aloof Ellipse Curve Cryptography 39
#38 josephs Cofactor Cofantasy 38
#39 thanoskoutr Modular Arithmetic 2 37
#40 shaloo Greatest Common Divisor 37
#41 Robin_Jadoul Modular Binomials 36
#42 aschanna123 Backpack Cryptography 34
#43 Likkrid Modular Square Root 33
#44 Scalpel Private Keys 33
#45 Darumaseye Generators of Groups 33
#46 grhkm Real Curve Crypto 32
#47 randomdude999 Vote for Pedro 32
#48 hellman The Matrix Reloaded 32
#49 ctfhacker Modular Square Root 32
#50 Drago Monoprime 32

Level Up

level up icon

You are now level Current level