C++

Workaround for the deprecated Crypt2.SignBytes method

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

#include <CkCrypt2.h>
#include <CkCert.h>
#include <CkByteData.h>
#include <CkBinData.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkCrypt2 crypt;

    CkCert cert;
    //  ...
    //  Load the cert from a source such as a .pfx/.p12 file, smart card, USB token, Apple keychain, Windows certificate store, etc.
    //  
    success = crypt.SetSigningCert(cert);

    crypt.put_HashAlgorithm("sha256");

    const char *path = "c:/someDir/example.dat";

    //  ------------------------------------------------------------------------
    //  The SignBytes method is deprecated:

    CkByteData inData;
    inData.loadFile(path);

    CkByteData outData;

    success = crypt.SignBytes(inData,outData);

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

    CkBinData bdIn;
    bdIn.LoadFile(path);

    crypt.put_EncodingMode("base64");
    const char *base64_sig = crypt.signBdENC(bdIn);

    //  If you want to access the bytes...
    CkBinData bdSig;
    bdSig.AppendEncoded(base64_sig,"base64");
    }