$ ctf42

jengacrypt

Reverse weight 25.00 No technique tags yet.
Difficulty Not rated yet

Author: ron

We encrypted the flag using the attached executable! Can you carefully take it apart and reverse its logic?

The command to encrypt the flag was:

cat flag.txt | ./jengacrypt take-a-block-from-the-bottom-and-put-it-on-top encrypt > encrypted.bin Author: ron

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