Solves

Data for the 50 most recent submitted challenge solves. To read writeups for our challenges, visit Solutions.
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Recent Solves
DateUserChallengeScore
Einas Quadratic Residues 25
nnyy64 Proofs of Knowledge 20
lucky123 Let's Decrypt 80
NullRoot XOR Properties 15
crowcell Computing Shared Secrets 30
Hanan Passwords as Keys 50
Reapery Finding Flags 2
moonheesung Flipping Cookie 60
rykazari Hex 5
Abstergo XOR Properties 15
NullRoot XOR Starter 10
Abstergo XOR Starter 10
BlackBach Proofs of Knowledge 20
zhangyongran Base64 10
Abstergo Bytes and Big Integers 10
NullRoot Bytes and Big Integers 10
Einas Modular Inverting 25
Abstergo Base64 10
Abstergo Hex 5
Sid_Dude You either know, XOR you don't 30
zhangyongran Hex 5
GrishaHR Hex 5
Sid_Dude Favourite byte 20
Sid_Dude XOR Properties 15
apollyon05 Extended GCD 20
moonheesung ECB CBC WTF 55
dromerolovo Resisting Bruteforce 10
GrishaHR ASCII 5
dromerolovo Keyed Permutations 5
GrishaHR Great Snakes 3
GrishaHR Finding Flags 2
Addy12118 Finding Flags 2
Ihcra Finding Flags 2
rykazari ASCII 5
rykazari Great Snakes 3
apollyon05 Greatest Common Divisor 15
rykazari Finding Flags 2
altierFalco Great Snakes 3
altierFalco Finding Flags 2
moonheesung Deriving Symmetric Keys 40
z4ibi Passwords as Keys 50
z4ibi Modes of Operation Starter 15
PJ696769 Passwords as Keys 50
patientlegend Modular Arithmetic 2 20
xsyshuai Structure of AES 15
patientlegend Modular Arithmetic 1 20
xsyshuai Resisting Bruteforce 10
patientlegend Extended GCD 20
z4ibi Bringing It All Together 50
xsyshuai Keyed Permutations 5

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