maeglin1908/cryptopals-aes_ecb

cryptopals-AES_ECB

Usage

This script just requires Numpy (1.19.5 used). To make simple, just run :

pip3 install -r requirements.txt

Then you can run the script with python3 :

python aes.py -k "YELLOW SUBMARINE" -d "A text whish has a length 16 byt"

You can specify the output with -o filename, which will contain the output as binary. By default, the output is as hex on stdout

Note

Almost everywhere, I only saw "implementations" using AES library directly, and almost never complete python codes. So, I decide to make my own ! I started also by implement matrix things, but, as it's not the point of this exercise, I just used Numpy.

To do all that, i used a lot of documentations. I will not lie, and tell I pick code from the he(ll)aven.

Just, a lot of documentation, and a lot of tries (and fails :D )

Used Documentations

https://datatracker.ietf.org/doc/html/rfc2104.html https://kavaliro.com/wp-content/uploads/2014/03/AES.pdf https://fr.slideshare.net/Shiraz316/aes-by-example https://www.angelfire.com/biz7/atleast/mix_columns.pdf https://github.com/boppreh/aes/blob/master/aes.py , line 89->96. I picked only that, cause, admit, it's really a pain.. https://en.wikipedia.org/wiki/Rijndael_S-box