Mixer The first program you will write shall be named mixer.py. The job of this program will be to encrypt (mix or "jumble") the lines of a text file, but do it in such a way that it can be un-done later with a separate program (which you will also write). When run, your program will first request a file to encrypt. Requesting the file name will look like Enter a nane of a python program to mix: X This program will then run it's encrypting (mixing) algorithm on the text file g. It will save the mixed version of the program to a file named ted.txt At this point you might be asking, how does the mixing work? And how can I mix in such a way that it can be undone by another program? Your program will "mix an input file by randomly re-arranging the lines of the input file. For example, you might request that xerpyencrypt a python file named get-credentials.py that looks like this lget the usernane from a prompt username raw_input ("Login: >") llist of allowed users user1 Jack" user 2 1i11" lcontrol that the user belongs to the list of allowed users if usernane user1: print "Access granted" elif usernane user2: print Welcome to the systen" else print "Access denied You then run mixer.py and request that it mix this file Enter a nane of a python program to mix: get-credentials.py After running. encrytd.txt will have the following contents Il have the following contents ted.txt