Solutions

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Recent Solutions
DateUserChallengeRating
0xSa3d You either know, XOR you don't 0
0xSa3d Favourite byte 0
ispo Real Curve Crypto 0
ispo Checkpoint 0
quangntenemy Roll your Own 0
tera Hide and seek (ECSC 2023 (Norway)) 1
ispo An Evil Twisted Mind 0
quangntenemy LWE High Bits Message 0
quangntenemy Size and Basis 0
ispo An Exceptional Twisted Mind 0
ispo A Twisted Mind 0
Oblivi0n Bean Counter 0
Oblivi0n Symmetry 0
Oblivi0n ECB Oracle 0
10ball XOR Properties 0
bordercut Confusion through Substitution 0
bordercut Round Keys 0
davifelix Flipping Cookie 0
ispo Edwards Goes Degenerate 0
dXNlcm5hbWU_ Public Keys 0
ispo No Random, No Bias 1
vox Monoprime 0
vox Square Eyes 0
chash Modular Binomials 0
vox Inferius Prime 0
 


Top Solutions
RankUserChallengeRating
#1 medvedisko XOR Properties 315
#2 oushanmu You either know, XOR you don't 254
#3 Robin_Jadoul Adrien's Signs 201
#4 bigtuple Favourite byte 196
#5 D00Movenok You either know, XOR you don't 118
#6 Robin_Jadoul Transparency 116
#7 Drago Crossed Wires 107
#8 obormot Greatest Common Divisor 107
#9 amadeus Quadratic Residues 104
#10 thanoskoutr Modular Inverting 104
#11 Flecart Legendre Symbol 103
#12 exp101t Modular Binomials 100
#13 Robin_Jadoul Encoding Challenge 90
#14 StormXploit Favourite byte 87
#15 Robin_Jadoul Structure of AES 87
#16 fecell Extended GCD 84
#17 ddddavidee Successive Powers 75
#18 Hon Modular Inverting 66
#19 aloof Exceptional Curves 61
#20 Daneallen Lemur XOR 57
#21 0xEmperor XOR Properties 56
#22 aloof RSA Backdoor Viability 55
#23 aloof Everything is Still Big 55
#24 GingerCarrot Extended GCD 55
#25 shoaloak Lemur XOR 52
#26 Retr0id ECB Oracle 51
#27 boge Favourite byte 50
#28 obormot Modular Arithmetic 1 49
#29 p4b Cofactor Cofantasy 45
#30 Drago Adrien's Signs 45
#31 Drago Jack's Birthday Hash 45
#32 shaloo Greatest Common Divisor 45
#33 zademn Fast Primes 44
#34 aloof Moving Problems 43
#35 T0t0r0 Parameter Injection 43
#36 Utaha Roll your Own 42
#37 aloof Ellipse Curve Cryptography 41
#38 R4GN4R Privacy-Enhanced Mail? 41
#39 Robin_Jadoul Modular Binomials 40
#40 thanoskoutr Modular Arithmetic 2 38
#41 Darumaseye Generators of Groups 38
#42 josephs Cofactor Cofantasy 37
#43 glgspg Round Keys 36
#44 aschanna123 Backpack Cryptography 35
#45 Likkrid Modular Square Root 35
#46 Drago Monoprime 35
#47 Scalpel Private Keys 35
#48 trillian Vote for Pedro 34
#49 trillian Smooth Criminal 34
#50 ctfhacker Modular Square Root 34

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