1. TUM CTF: Haggis

    Writeup for the Haggis flag.

    The challenge is the following:

    • A message \(m\) is padded, then encrypted using AES in CBC mode, with known key \(K=0\) and IV \(IV=0\), to ciphertext \(c\).
    • \(m\) needs to start with "I solemnly swear that I am up to no good.\0 ...
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