(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 <C_CkDsaW.h>

void ChilkatSample(void)
    {
    HCkDsaW dsa;
    BOOL success;
    const wchar_t *pemStr;

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

    dsa = CkDsaW_Create();

    // Load a DER private key.
    success = CkDsaW_FromDerFile(dsa,L"dsa_priv.der");
    if (success != TRUE) {
        wprintf(L"%s\n",CkDsaW_lastErrorText(dsa));
        CkDsaW_Dispose(dsa);
        return;
    }

    // Save to unencrypted PEM:
    pemStr = CkDsaW_toPem(dsa);
    success = CkDsaW_SaveText(dsa,pemStr,L"dsa_priv.pem");
    if (success != TRUE) {
        wprintf(L"%s\n",CkDsaW_lastErrorText(dsa));
        CkDsaW_Dispose(dsa);
        return;
    }

    // Save to encrypted PEM:
    pemStr = CkDsaW_toEncryptedPem(dsa,L"myPassword");
    success = CkDsaW_SaveText(dsa,pemStr,L"dsa_privEncrypted.pem");
    if (success != TRUE) {
        wprintf(L"%s\n",CkDsaW_lastErrorText(dsa));
        CkDsaW_Dispose(dsa);
        return;
    }

    wprintf(L"Finished!\n");


    CkDsaW_Dispose(dsa);

    }