C

Workaround for the deprecated Crypt2.MacBytesENC method

Shows how to replace the deprecated MacBytesENC method. (Chilkat is moving away from the use of CkByteData.) C

#include <C_CkCrypt2.h>
#include <C_CkByteData.h>
#include <C_CkBinData.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkCrypt2 crypt;
    const char *keyHex;
    const char *path;
    HCkByteData inData;
    const char *hmac_hex;
    HCkBinData bdIn;

    success = FALSE;

    crypt = CkCrypt2_Create();

    //  Do HMAC using SHA-256.
    CkCrypt2_putMacAlgorithm(crypt,"hmac");
    CkCrypt2_putHashAlgorithm(crypt,"sha256");

    keyHex = "000102030405060708090A0B0C0D0E0F";
    success = CkCrypt2_SetMacKeyEncoded(crypt,keyHex,"hex");

    //  Return the HMAC using the lowercase hex encoding.
    CkCrypt2_putEncodingMode(crypt,"hex_lower");

    path = "c:/someDir/example.dat";

    //  ------------------------------------------------------------------------
    //  The MacBytesENC method is deprecated:

    inData = CkByteData_Create();
    CkByteData_loadFile(inData,path);

    hmac_hex = CkCrypt2_macBytesENC(crypt,inData);
    printf("%s\n",hmac_hex);

    //  ------------------------------------------------------------------------
    //  Workaround.
    //  (Chilkat is moving away from using CkByteData)

    bdIn = CkBinData_Create();
    CkBinData_LoadFile(bdIn,path);

    hmac_hex = CkCrypt2_macBdENC(crypt,bdIn);
    printf("%s\n",hmac_hex);


    CkCrypt2_Dispose(crypt);
    CkByteData_Dispose(inData);
    CkBinData_Dispose(bdIn);

    }