Name of question : DUMBONE
DESCRIPTION (as per the Icectf webste):
I joined a couple of hacking channels on IRC and I started recieving these strange messages. Someone sent me this image. Can you figure out if there's anything suspicous hidden in it?-----------------------------------------------------------------------------------------------------------------------Write up:
In this CRYPTO question we had been given 2 things in the picture garfeld.png
First the ciphered text : "IjgJUO{P_LOUV_AIRUS_GYQUTOLTD_SKRFB_TWNKCFT}"
and a key on the top right of the photo
KEY="07271978"
In the python file i have given the code.In the code it is basically moving backward the current alphabet with the respective number given in the key.
Note: It is only for the alphabets not for the symbols
For example :	Ijg will be deciphered as below: 	'I' : 'I'-0='I'	'j' : 'j'-7='c'	'g' : 'g'-2='e' 
After running the python file the flag appeared :"IceCTF{I_DONT_THINK_GRONSFELD_LIKED_MONDAYS}" 