Is this the proper way to use Bouncy Castle to generate a Bitcoin compatible key?

Question

I'd like to use Bouncy Castle to generate the keypair for use with all *coin variants.

Is this the correct implementation to get the correct ECC curve that the *coin variants use?

    Org.BouncyCastle.Crypto.AsymmetricCipherKeyPair GenerateKeys(int keySize)
    {
        var gen = new Org.BouncyCastle.Crypto.Generators.ECKeyPairGenerator();
        var secureRandom = new Org.BouncyCastle.Security.SecureRandom();
        var keyGenParam = new Org.BouncyCastle.Crypto.KeyGenerationParameters(secureRandom, keySize);
        gen.Init(keyGenParam);

        return gen.GenerateKeyPair();
    }