(Unicode C++) Iterate Keys and Certs in PEM

Demonstrates how to access each of the private keys and certs contained within a PEM.

Note: This example requires Chilkat v11.0.0 or greater.

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#include <CkPemW.h>
#include <CkPrivateKeyW.h>
#include <CkCertW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkPemW pem;

    // Load the PEM from a file.
    // If the PEM is encrypted, provide a password.  Otherwise pass an empty string for the password.
    const wchar_t *password = L"myPassword";
    success = pem.LoadPemFile(L"../myPemFiles/myPem.pem",password);
    if (success == false) {
        wprintf(L"%s\n",pem.lastErrorText());
        return;
    }

    // Note: If the app already has the PEM pre-loaded in a string variable, then load it 
    // by calling LoadPem instead.  
    const wchar_t *pemContent = L"... the PEM contents ...";
    success = pem.LoadPem(pemContent,password);
    // Check for success as before..

    // Iterate over the private keys.
    int numPrivateKeys = pem.get_NumPrivateKeys();
    int i = 0;

    CkPrivateKeyW privKey;
    while (i < numPrivateKeys) {
        pem.PrivateKeyAt(i,privKey);
        wprintf(L"Private Key %d is %d in length\n",i,privKey.get_BitLength());
        i = i + 1;
    }

    // Iterate over the certificates.
    CkCertW cert;
    int numCerts = pem.get_NumCerts();
    i = 0;
    while (i < numCerts) {
        pem.CertAt(i,cert);
        wprintf(L"Certificate %d : %s\n",i,cert.subjectDN());
        i = i + 1;
    }
    }