Solves

Data for the 50 most recent submitted challenge solves. To read writeups for our challenges, visit Solutions.
computer celebrating
Recent Solves
DateUserChallengeScore
MHW Base64 10
yawanxuan Adrien's Signs 80
Judah_Ayieko Modes of Operation Starter 15
phatnt Base64 10
phatnt Hex 5
osman21 Bean Counter 60
osman21 Symmetry 50
Samuel_Soares Bytes and Big Integers 10
osman21 Flipping Cookie 60
mma XOR Starter 10
phatnt ASCII 5
osman21 ECB CBC WTF 55
phatnt Great Snakes 3
Judah_Ayieko Bringing It All Together 50
phatnt Finding Flags 2
osman21 ECB Oracle 60
osman21 Passwords as Keys 50
hikaru820 Quadratic Residues 25
osman21 Modes of Operation Starter 15
EOGWAYO Bean Counter 60
whaoe Modular Square Root 35
bad_code Modular Inverting 25
osman21 Bringing It All Together 50
mathers79 Bytes and Big Integers 10
KMA_SiriuS_ Triple DES 60
osman21 Diffusion through Permutation 30
OVAN Favourite byte 20
osman21 Confusion through Substitution 25
osman21 Round Keys 20
OVAN XOR Properties 15
osman21 Structure of AES 15
Judah_Ayieko Diffusion through Permutation 30
osman21 Resisting Bruteforce 10
osman21 Keyed Permutations 5
aceseven Favourite byte 20
OVAN XOR Starter 10
Judah_Ayieko Confusion through Substitution 25
Judah_Ayieko Round Keys 20
Judah_Ayieko Structure of AES 15
hikaru820 Modular Inverting 25
liendaidx Encoding Challenge 40
mma Bytes and Big Integers 10
AbhayK Origami (NNS CTF 2025) 0
Judah_Ayieko Resisting Bruteforce 10
CookieMonste Base64 10
OVAN Encoding Challenge 40
hikaru820 Modular Arithmetic 2 20
Judah_Ayieko Keyed Permutations 5
at220121 Passwords as Keys 50
hikaru820 Modular Arithmetic 1 20

Level Up

level up icon

You are now level Current level