Individual assigment files can be found in the location:

http://echidna.maths.usyd.edu.au/~kohel/tch/Crypto/Assignments/02/LastFirstMiddle.pdf

The raw data ciphertext files for this assigment are:

http://echidna.maths.usyd.edu.au/~kohel/tch/Crypto/Assignments/02/Ciphertext/LastFirstMiddle.txt

Replace (Last,First,Middle) with appropriate names.