Add Blowfish tests

        }

    }

    fn cipher_test_nopad(ciphertype: super::Cipher, pt: &str, ct: &str, key: &str, iv: &str) {

        let pt = Vec::from_hex(pt).unwrap();

        let ct = Vec::from_hex(ct).unwrap();

        let key = Vec::from_hex(key).unwrap();

        let iv = Vec::from_hex(iv).unwrap();

        let computed = {

            let mut c = Crypter::new(ciphertype, Mode::Decrypt, &key, Some(&iv)).unwrap();

            c.pad(false);

            let mut out = vec![0; ct.len() + ciphertype.block_size()];

            let count = c.update(&ct, &mut out).unwrap();

            let rest = c.finalize(&mut out[count..]).unwrap();

            out.truncate(count + rest);

            out

        };

        let expected = pt;

        if computed != expected {

            println!("Computed: {}", computed.to_hex());

            println!("Expected: {}", expected.to_hex());

            if computed.len() != expected.len() {

                println!("Lengths differ: {} in computed vs {} expected",

                         computed.len(),

                         expected.len());

            }

            panic!("test failure");

        }

    }

    #[test]

    fn test_rc4() {

        cipher_test(super::Cipher::aes_256_cfb8(), pt, ct, key, iv);

    }

    #[test]

    fn test_bf_cbc() {

        // https://www.schneier.com/code/vectors.txt

        let pt = "37363534333231204E6F77206973207468652074696D6520666F722000000000";

        let ct = "6B77B4D63006DEE605B156E27403979358DEB9E7154616D959F1652BD5FF92CC";

        let key = "0123456789ABCDEFF0E1D2C3B4A59687";

        let iv = "FEDCBA9876543210";

        cipher_test_nopad(super::Cipher::bf_cbc(), pt, ct, key, iv);

    }

    #[test]

    fn test_bf_ecb() {

        let pt = "5CD54CA83DEF57DA";

        let ct = "B1B8CC0B250F09A0";

        let key = "0131D9619DC1376E";

        let iv = "0000000000000000";

        cipher_test_nopad(super::Cipher::bf_ecb(), pt, ct, key, iv);

    }

    #[test]

    fn test_bf_cfb64() {

        let pt = "37363534333231204E6F77206973207468652074696D6520666F722000";

        let ct = "E73214A2822139CAF26ECF6D2EB9E76E3DA3DE04D1517200519D57A6C3";

        let key = "0123456789ABCDEFF0E1D2C3B4A59687";

        let iv = "FEDCBA9876543210";

        cipher_test_nopad(super::Cipher::bf_cfb64(), pt, ct, key, iv);

    }

    #[test]

    fn test_bf_ofb() {

        let pt = "37363534333231204E6F77206973207468652074696D6520666F722000";

        let ct = "E73214A2822139CA62B343CC5B65587310DD908D0C241B2263C2CF80DA";

        let key = "0123456789ABCDEFF0E1D2C3B4A59687";

        let iv = "FEDCBA9876543210";

        cipher_test_nopad(super::Cipher::bf_ofb(), pt, ct, key, iv);

    }

    #[test]

    fn test_des_cbc() {