(MFC) Load Base64-encoded X.509 Certificate (.cer)

Loads a digital certificate from a base64 encoded DER X.509 Certificate (.cer, .crt) and fetches information about the cert.

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.
    //  A base64-encoded DER X.509 certificate file
    //  contains the binary DER in base64 encoded form.
    //  Therefore, it is a text file that will begin like this:
    //  -----BEGIN CERTIFICATE-----
    //  MIIFbjCCBFagAwIBAgIGdDPNv/L0MA0GCSqGSIb3DQEBBQUAMIHKMQswCQYDVQQG
    //  EwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEaMBgG
    //  ...

    success = cert.LoadFromFile("/Users/chilkat/testData/cer/chilkat_base64.cer");
    if (success != true) {
        strOut.append(cert.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  DN = "Distinguished Name"
    strOut.append("SubjectDN:");
    strOut.append(cert.subjectDN());
    strOut.append("\r\n");

    strOut.append("Common Name:");
    strOut.append(cert.subjectCN());
    strOut.append("\r\n");
    strOut.append("Issuer Common Name:");
    strOut.append(cert.issuerCN());
    strOut.append("\r\n");

    strOut.append("Serial Number:");
    strOut.append(cert.serialNumber());
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }