Non-textual Troubles - UACTF 2022

It turn out that in Python 3, attempting to write non-ASCII characters to a file without using ‘binary mode’ (a mode which deals with ’non-textual data’, hence the name of the challenge) has some less-than ideal results. Indeed, if you tried providing your own plain-text to xor.py you might have noticed that there are somehow more bytes in the cipher-text after XORing that you started with in your plaintext. Ultimately, it appears that the write....

August 7, 2022 · javad