Node.js

Blowfish CFB Mode Encryption

See more Encryption Examples

Demonstrates how to encrypt using Blowfish CFB (Cipher Feedback) mode. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    //  This example assumes the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    var crypt = new chilkat.Crypt2();

    //  Use "blowfish2" to produce correct results that match published blowfish test vectors.
    crypt.CryptAlgorithm = "blowfish2";
    crypt.CipherMode = "cfb";
    crypt.KeyLength = 256;

    //  EncodingMode specifies the encoding of the output for
    //  encryption, and the input for decryption.
    //  It may be "hex", "url", "base64", "quoted-printable", or many other choices.
    crypt.EncodingMode = "hex";

    //  The block size of the blowfish algoirthm is 8 bytes, therefore the IV is 8 bytes.
    var ivHex = "0001020304050607";
    crypt.SetEncodedIV(ivHex,"hex");

    //  The secret key must equal the size of the key.  For
    //  256-bit encryption, the binary secret key is 32 bytes.
    var keyHex = "603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4";
    crypt.SetEncodedKey(keyHex,"hex");

    //  Encrypt a string...
    var encStr = crypt.EncryptStringENC("In all intellectual debates, both sides tend to be correct in what they affirm, and wrong in what they deny. -- John Stuart Mill");
    console.log(encStr);

    var decrypt = new chilkat.Crypt2();

    decrypt.CryptAlgorithm = "blowfish2";
    decrypt.CipherMode = "cfb";
    decrypt.KeyLength = 256;
    decrypt.EncodingMode = "hex";
    decrypt.SetEncodedIV(ivHex,"hex");
    decrypt.SetEncodedKey(keyHex,"hex");

    //  Now decrypt:
    var decStr = decrypt.DecryptStringENC(encStr);
    console.log(decStr);

}

chilkatExample();