(Unicode C++) 2-Key Triple DES (112 bits)

Demonstrates 2-Key Triple DES encryption (112-bit 3DES encryption).

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#include <CkCrypt2W.h>

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

    CkCrypt2W crypt;

    // Specify 3DES for the encryption algorithm:
    crypt.put_CryptAlgorithm(L"3des");

    crypt.put_CipherMode(L"ecb");

    // For 2-Key Triple-DES, use a key length of 128
    // (Given that each byte's msb is a parity bit, the strength is really 112 bits).
    crypt.put_KeyLength(128);

    // Pad with zeros
    crypt.put_PaddingScheme(3);

    // 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");

    // Let's create a secret key by using the MD5 hash of a password.
    // The Digest-MD5 algorithm produces a 16-byte hash (i.e. 128 bits)
    crypt.put_HashAlgorithm(L"md5");
    const wchar_t *keyHex = crypt.hashStringENC(L"secretPassword");

    // Set the encryption key:
    crypt.SetEncodedKey(keyHex,L"hex");

    // Encrypt
    const wchar_t *encStr = crypt.encryptStringENC(L"The quick brown fox jumped over the lazy dog");
    wprintf(L"%s\n",encStr);

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