C

Workaround for the deprecated Crypt2.SignString method

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

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkCrypt2 crypt;
    HCkCert cert;
    const char *textToSign;
    HCkByteData outData;
    const char *base64_sig;
    HCkBinData bdSig;

    success = FALSE;

    crypt = CkCrypt2_Create();

    cert = CkCert_Create();
    //  ...
    //  Load the cert from a source such as a .pfx/.p12 file, smart card, USB token, Apple keychain, Windows certificate store, etc.
    //  
    success = CkCrypt2_SetSigningCert(crypt,cert);

    //  Sign the utf-8 byte representation of the text.
    CkCrypt2_putCharset(crypt,"utf-8");

    textToSign = "This is the text to sign";

    //  ------------------------------------------------------------------------
    //  The SignString method is deprecated:

    outData = CkByteData_Create();

    success = CkCrypt2_SignString(crypt,textToSign,outData);

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

    CkCrypt2_putEncodingMode(crypt,"base64");
    base64_sig = CkCrypt2_signStringENC(crypt,textToSign);

    //  If you want the binary bytes of the signature decoded from base64.
    bdSig = CkBinData_Create();
    CkBinData_AppendEncoded(bdSig,base64_sig,"base64");


    CkCrypt2_Dispose(crypt);
    CkCert_Dispose(cert);
    CkByteData_Dispose(outData);
    CkBinData_Dispose(bdSig);

    }