(Unicode C++) Convert DSA DER Private Key to PEM

Converts a DSA private key from DER format to PEM. Demonstrates how to write both encrypted and unencrypted PEM formatted private keys.

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#include <CkDsaW.h>

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

    CkDsaW dsa;

    // Load a DER private key.
    bool success = dsa.FromDerFile(L"dsa_priv.der");
    if (success != true) {
        wprintf(L"%s\n",dsa.lastErrorText());
        return;
    }

    const wchar_t *pemStr = 0;

    // Save to unencrypted PEM:
    pemStr = dsa.toPem();
    success = dsa.SaveText(pemStr,L"dsa_priv.pem");
    if (success != true) {
        wprintf(L"%s\n",dsa.lastErrorText());
        return;
    }

    // Save to encrypted PEM:
    pemStr = dsa.toEncryptedPem(L"myPassword");
    success = dsa.SaveText(pemStr,L"dsa_privEncrypted.pem");
    if (success != true) {
        wprintf(L"%s\n",dsa.lastErrorText());
        return;
    }

    wprintf(L"Finished!\n");
    }