April 2018 archive

0CTF 2018 Quals – zer0C5 (Crypto 785)

0ops Cipher 4, hope you enjoy it:) zer0C4.zip nc 1234 Summary: related-key attack on weakened variant of RC4

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0CTF 2018 Quals – zer0SPN (Crypto 550)

0ops SPN, hope you enjoy it:) zer0SPN.zip Summary: linear cryptanalysis on toy block cipher

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0CTF 2018 Quals – zer0TC (Crypto 916)

0ops Toy Cipher, hope you enjoy it:) zer0TC.zip Summary: meet-in-the-middle and key-schedule constraints

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