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this simple program implements the Vigenere cipher in python
For details of this cipher see;
http://en.wikipedia.org/wiki/Vigenere_cipher
This cipher can be broken by frequency analysis, this is a toy project, and should not be used in situations where security is important.
SLEncrypt is a python module for encryption with 11 ciphers at the moment, including ADFGVX, Autokey, Caesar/ROT13, Vigenere, XOR and a lot more. It contains functions allowing you to easily encrypt/decrypt files. The code is about 95% PEP 8 compilant.