(Unicode C++) Twofish Encryption - 128-bit, 192-bit, 256-bit

Twofish encryption. The Chilkat encryption component supports 128-bit, 192-bit, and 256-bit Twofish encryption in both ECB (Electronic Cookbook) and CBC (Cipher-Block Chaining) modes.

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <CkCrypt2W.h>

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

    CkCrypt2W crypt;

    // Set the encryption algorithm = "twofish"	
    crypt.put_CryptAlgorithm(L"twofish");

    // CipherMode may be "ecb" or "cbc"
    crypt.put_CipherMode(L"cbc");

    // KeyLength may be 128, 192, 256
    crypt.put_KeyLength(256);

    // The padding scheme determines the contents of the bytes
    // that are added to pad the result to a multiple of the
    // encryption algorithm's block size.  Twofish has a block
    // size of 16 bytes, so encrypted output is always
    // a multiple of 16.
    crypt.put_PaddingScheme(0);

    // EncodingMode specifies the encoding of the output for
    // encryption, and the input for decryption.
    // It may be "hex", "url", "base64", or "quoted-printable".
    crypt.put_EncodingMode(L"hex");

    // An initialization vector is required if using CBC mode.
    // ECB mode does not use an IV.
    // The length of the IV is equal to the algorithm's block size.
    // It is NOT equal to the length of the key.
    const wchar_t *ivHex = L"000102030405060708090A0B0C0D0E0F";
    crypt.SetEncodedIV(ivHex,L"hex");

    // The secret key must equal the size of the key.  For
    // 256-bit encryption, the binary secret key is 32 bytes.
    // For 128-bit encryption, the binary secret key is 16 bytes.
    const wchar_t *keyHex = L"000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F";
    crypt.SetEncodedKey(keyHex,L"hex");

    // Encrypt a string...
    // The input string is 44 ANSI characters (i.e. 44 bytes), so
    // the output should be 48 bytes (a multiple of 16).
    // Because the output is a hex string, it should
    // be 96 characters long (2 chars per byte).
    const wchar_t *encStr = crypt.encryptStringENC(L"The quick brown fox jumps over the lazy dog.");
    wprintf(L"%s\n",encStr);

    // Now decrypt:
    const wchar_t *decStr = crypt.decryptStringENC(encStr);
    wprintf(L"%s\n",decStr);
    }