What is the best library I can use for BlowFish/DH? [closed]

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What is the best library I can use for BlowFish/DH, because I was using BouncyCastle but it looks like it does not do what I want, so I was wondering if there is another library I can use so it let me work with CFB/DH? Thanks

And here is my BouncyCastle class:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Org.BouncyCastle.Crypto;
using Or开发者_StackOverflowg.BouncyCastle.Crypto.Modes;
using Org.BouncyCastle.Crypto.Engines;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Math;


namespace Common.Encryption
{
    public class BlowfishCryptographer
    {
        private bool forEncryption;
        private IBufferedCipher cipher;

        public BlowfishCryptographer(bool forEncryption)
        {
            this.forEncryption = forEncryption;
            cipher = new BufferedBlockCipher(new CfbBlockCipher(new BlowfishEngine(), 64));
            cipher.Init(forEncryption, new ParametersWithIV(new KeyParameter(Encoding.ASCII.GetBytes("DR654dt34trg4UI6")), new byte[8]));
        }
        public void ReInit(byte[] IV,BigInteger pubkey)
        {
            cipher.Init(forEncryption, new ParametersWithIV(new KeyParameter(pubkey.ToByteArrayUnsigned()),IV));
        }
        public byte[] DoFinal()
        {
            return cipher.DoFinal();
        }
        public byte[] DoFinal(byte[] buffer)
        {
           return cipher.DoFinal(buffer);
        }
        public byte[] DoFinal(byte[] buffer, int startIndex, int len)
        {
            return cipher.DoFinal(buffer, startIndex, len);
        }
        public byte[] ProcessBytes(byte[] buffer)
        {
            return cipher.ProcessBytes(buffer);
        }
        public byte[] ProcessBytes(byte[] buffer, int startIndex, int len)
        {
            return cipher.ProcessBytes(buffer, startIndex, len);
        }
        public void   Reset()
        {
            cipher.Reset();
        }
    }
}

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The source code for an implementation is fairly easy to stumble across on the internet thingy.

Is this what you are after?

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