Cryptanalysis
Known plaintext - XOR
Hi,
I’ve downloaded the BMP file and I wasn’t expecting it to simply open with a picture editor so I used the PIL library from Python to try and open it.
But this doesn’t work and I have this error : "cannot identify image file ch3.bmp"
I would like to know if I have to find another way or if I’m doing something wrong.
Can you help me ?
Thanks !
Known plaintext - XOR
Thanks for your answer, p374.
I know that the data is encrypted and that is why I mentioned that I didn’t try to display it (open it with an editor) but rather access it via python in order to analyze it.
When you say that I have to look into the encrypted data, can you explain how or with what tool ?
As I say, I tried with the PIL library and it didn’t word...
Can you give me a hint please ?
Thank you for your time
Known plaintext - XOR
hi , the file should be BMP ...
so read about BMP in wikipedia...
every file has its own head :)
just say no to spoils !