This is a tool that uses a combination between a brute force and dictionary attack on a Vigenere cipher.
At present, keys are generated using brute force (will soon try passwords generated from a dictionary first).
Each key is then used to decode the encoded message input. The output is analysed and then put into a ranking table. Outputs will be ranked on a variety of factors (at present, only number of dictionary words in output are counted).
For the future:
Better key generation,...
Crypto.Net is a free and open cryptography library for C# and .Net. AES (Rijndeal), Twofish, Blowfish, RSA, Diffie-Hellman, SSL/TLS, X509-Certificate builder, stream cipher modes or a secure netowrk stream are only some features of this library.