112-bit 3DES Encryption

Demonstrates how to do 112-bit 3DES encryption.

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MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

#include <C_CkCrypt2.h>

void ChilkatSample(void)
    {
    HCkCrypt2 crypt;
    BOOL success;
    const char * ivHex;
    const char * keyHex;
    const char * encStr;
    const char * decStr;

    crypt = CkCrypt2_Create();

    success = CkCrypt2_UnlockComponent(crypt,"Anything for 30-day trial");
    if (success != TRUE) {
        printf("Crypt component unlock failed\n");
        return;
    }

    //  Specify 3DES for the encryption algorithm:
    CkCrypt2_putCryptAlgorithm(crypt,"3des");

    //  CipherMode may be "ecb" or "cbc"
    CkCrypt2_putCipherMode(crypt,"ecb");

    //  Set the key length
    CkCrypt2_putKeyLength(crypt,112);

    //  Choose a padding scheme...
    CkCrypt2_putPaddingScheme(crypt,0);

    //  EncodingMode specifies the encoding of the output for
    //  encryption, and the input for decryption.
    //  It may be "hex", "url", "base64", or "quoted-printable".
    CkCrypt2_putEncodingMode(crypt,"hex");

    //  An initialization vector is required if using CBC or CFB modes.
    //  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.

    ivHex = "0001020304050607";
    CkCrypt2_SetEncodedIV(crypt,ivHex,"hex");

    //  The secret key must equal the size of the key.
    //  Remember, DES (i.e. 3DES) uses a parity bit in the key,
    //  so 112-bit 3DES requires 128 bits of key material
    //  (i.e. 16 bytes)

    keyHex = "11165395389c904862912aba16d315b8";
    CkCrypt2_SetEncodedKey(crypt,keyHex,"hex");

    //  Encrypt a string...

    encStr = CkCrypt2_encryptStringENC(crypt,"999999987");
    //  The result should be: 8CDBB138C11EDC3A77F04E488B46385C
    printf("%s\n",encStr);

    //  Now decrypt:

    decStr = CkCrypt2_decryptStringENC(crypt,encStr);
    printf("%s\n",decStr);

    CkCrypt2_Dispose(crypt);

    }