#cryptography
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Introduction Challenge: credstuff Category: Cryptography Description: We found a leak of a black-market website's login credentials. Can you find the...
Introduction Challenge: basic-mod-2 Category: Cryptography Description: A new modular challenge! Download the message here. Take each number mod 41...
Introduction Challenge: basic-mod1 Category: Cryptography Description: We found this weird message being passed around on the servers, we think we...