Over the summer holidays I started working on cracking a few of the codes that are part of the Cipher Challenge. As practice for my C programming I wrote programs to solve all of the codes, even stages 1 & 2, which were fairly trivial. Stage 4 (a Vigenère cipher for those who are in the know) was the first challenging one.

The good news is I have completed my program for solving Vigenère ciphers and have cracked the code. As with my code for stages 1 & 2, this program is licensed under the GPL. If anyone would like a copy please email me and I'll be glad to send it to you. Speaking of this I hope to be putting the programs on my website at some point, but like the 2.4 Kernel I couldn't put a date on it.