(C# UWP/WinRT) Convert CRL PEM to XML

Loads a CRL (Certificate Revocation List) from the PEM file format and converts to XML to allow for visual examination and parsing.

Note: This example requires Chilkat v9.5.0.77 or greater.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

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

// This example requires Chilkat v9.5.0.77 or greater.
Chilkat.Pem pem = new Chilkat.Pem();

pem.VerboseLogging = true;
bool success = await pem.LoadPemFileAsync("qa_data/crl/sampleCrl.pem","password_not_used");
if (success != true) {
    Debug.WriteLine(pem.LastErrorText);
    return;
}

int numCrls = pem.NumCrls;
int i = 0;

Chilkat.Asn asn = new Chilkat.Asn();
Chilkat.Xml xml = new Chilkat.Xml();
while (i < numCrls) {

    // Get the CRL as base64 (multi-line)
    string crlBase64 = pem.GetEncodedItem("crl","","base64_mime",i);
    if (pem.LastMethodSuccess != true) {
        Debug.WriteLine(pem.LastErrorText);
        return;
    }

    Debug.WriteLine(crlBase64);

    success = asn.LoadEncoded(crlBase64,"base64");
    if (success != true) {
        Debug.WriteLine(asn.LastErrorText);
        return;
    }

    // Convert ASN.1 to XML and load into xml and re-emit for pretty printing..
    xml.LoadXml(asn.AsnToXml());
    Debug.WriteLine(xml.GetXml());

    // Use this online tool to generate parsing code from CRL XML: 
    // Generate Parsing Code from XML

    Debug.WriteLine("-------------------------------------");
    i = i + 1;
}