(MFC) DSA Public Key PEM to DER Conversion

Converts a DSA public key from PEM format to DER.

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

See Also: Using MFC CString in Chilkat

#include <CkDsa.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkDsa dsa;

    // Load a PEM public key.
    const char *pemPublicKey = 0;
    pemPublicKey = dsa.loadText("dsa_pub.pem");
    // Import the public key PEM into the DSA object.
    bool success = dsa.FromPublicPem(pemPublicKey);
    if (success != true) {
        strOut.append(dsa.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Write it out as a DER file:
    success = dsa.ToPublicDerFile("dsa_pub.der");
    if (success != true) {
        strOut.append(dsa.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append("Finished!");
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }