(C++) Workaround for the deprecated Crypt2.OpaqueVerifyString method

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

Note: This example requires Chilkat v11.0.0 or greater.

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

void ChilkatSample(void)
    {
    CkCrypt2 crypt;

    // Specifies how the original data bytes are converted to characters
    crypt.put_Charset("utf-8");

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

    // ------------------------------------------------------------------------
    // The OpaqueVerifyString method is deprecated:

    CkByteData inData;
    inData.loadFile(path);

    const char *originalText = crypt.opaqueVerifyString(inData);

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

    CkBinData bd;
    bd.LoadFile(path);

    // If the opaque signature is validated, the contents of bd are replaced with the original data that was signed.
    bool success = crypt.OpaqueVerifyBd(bd);

    // Indicate how the bytes are converted to chars by passing the charset.
    originalText = bd.getString("utf-8");
    }