Et tu, Brute? - 5 points

Writeup by poortho

Problem Statement: I found a message from Julius. Can you get the flag? Huk aopz pz aol mshn: clup_cpkp_cpjp_TqTfUK


Look up what a Caesar cipher is. Can you make sense of the encrypted text above? Once you do, enter the ‘flag’ in the text box below and check if you’re right!


As the problem says, the message is encrypted using a caesar cipher. We simply plug this in to an online tool such as and check all the possible keys.

By doing this, we can obtain the plaintext and the flag: And this is the flag: veni_vidi_vici_MjMyND



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