[Tutor] Columnar Transposition Cipher question

[Steven D'Aprano]

On Mon, Nov 08, 2010 at 03:28:44PM -0800, Natalie Kristine T. Castillo wrote:
> Hi, I need help on how exactly to solve this:
>
> To send secret messages you and your partner have decided to use the
> columnar function you have written to perform columnar transposition
> cipher for this course. You have received the ciphertext
> EXLYHILOSHOOAETU from your friend. You two decide to use the keyword
> MARS. What message did your friend send you? Show your steps and do it
> by hand.

This link might help:
http://en.wikipedia.org/wiki/Transposition_cipher#Columnar_transposition

Otherwise, this isn't exactly on-topic for a Python list, particularly
since you're told to do it by hand. But in case anyone is interested:

http://pypi.python.org/pypi/obfuscate

Good luck :)


--
Steven