How to implement twofish and blowfish decryption algorithms?

Hi,

 

You can use Bouncy Castle C# API.

 

Symmetric key algorithms: AES, Blowfish, Camellia, CAST5, CAST6, DESede, DES, GOST28147, HC-128, HC-256, IDEA, NaccacheStern, RC2, RC4, RC5-32, RC5-64, RC6, Rijndael, Serpent, Skipjack, TEA/XTEA, Twofish, and VMPC.

 

For more details you can visit this link :

http://www.bouncycastle.org/csharp/

Or other links :

https://www.schneier.com/code/blowfish.cs

http://www.codeexperts.com/showthread.php?1039-Encrypting-files-using-4-different-encryption-methods