0ops Cipher 4, hope you enjoy it:) zer0C4.zip nc 202.120.7.220 1234 Summary: related-key attack on weakened variant of RC4
April 2018 archive
Apr 02
0CTF 2018 Quals – zer0SPN (Crypto 550)
0ops SPN, hope you enjoy it:) zer0SPN.zip Summary: linear cryptanalysis on toy block cipher
Apr 02
0CTF 2018 Quals – zer0TC (Crypto 916)
0ops Toy Cipher, hope you enjoy it:) zer0TC.zip Summary: meet-in-the-middle and key-schedule constraints