Node.js

Twofish CFB Mode Encryption

See more Encryption Examples

Demonstrates how to encrypt using Twofish 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();

    crypt.CryptAlgorithm = "twofish";
    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";

    var ivHex = "000102030405060708090A0B0C0D0E0F";
    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("We must face the fact that the preservation of individual freedom is incompatible with a full satisfaction of our views of distributive justice. -- Friedrich Hayek");
    console.log(encStr);

    var decrypt = new chilkat.Crypt2();

    decrypt.CryptAlgorithm = "twofish";
    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();