(MFC) Convert to DER encoded X.509 Certificate (.cer, .crt)

Loads a digital certificate from any format and saves to a binary DER encoded X.509 Certificate (.cer, .crt).

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkCert.h>

void ChilkatSample(void)
    {
    CkString strOut;

    CkCert cert;

    bool success;

    //  LoadFromFile will load virtually any certificate format file.
    //  It will auto-recognize the format and load appropiately.
    //  In this case, load a PEM format certificate and convert to DER.
    success = cert.LoadFromFile("/Users/chilkat/testData/pem/chilkat.pem");
    if (success != true) {
        strOut.append(cert.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    success = cert.ExportCertDerFile("chilkat.der");
    if (success != true) {
        strOut.append(cert.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append("Converted certificate from PEM to DER format.");
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }