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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MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

#include <CkDsa.h>

void ChilkatSample(void)
    {
    bool success;

    CkDsa dsa;

    success = dsa.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        printf("%s\n",dsa.lastErrorText());
        return;
    }

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

    const char * pemStr;

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

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

    printf("Finished!\n");
    }