Vigenere Ciphers

Here is the program (a Maple worksheet) I used to decipher some of them.

vigen_decode.mws

After downloading the ciphers, you can read them into the Maple worksheet by the command

cipher:=readin(`filename.txt`);

Then you manipulate cipher with the worksheet commands.

1.txt	2.txt	3.txt	4.txt
5.txt	6.txt	7.txt	8.txt
9.txt	10.txt	11.txt	12.txt
13.txt	14.txt	15.txt	16.txt
17.txt	18.txt	19.txt	20.txt