(Mono C#) Get Certificate Chain Certs

Demonstrates how to get the certs in the chain of authentication for a certificate loaded from the Windows certificate store.

Chilkat .NET Downloads Chilkat .NET Assemblies Chilkat for .NET Core Chilkat for Mono

Chilkat.Cert cert = new Chilkat.Cert();

// This example will get the SSL server certificate for tools.chilkat.io
// which we happen to have locally installed in our Windows certificate store.
bool success = cert.LoadByCommonName("tools.chilkat.io");
if (success == false) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

Chilkat.CertChain chain = cert.GetCertChain();
if (cert.LastMethodSuccess == false) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

int numCerts = chain.NumCerts;
int i = 0;
while (i < numCerts) {
    Chilkat.Cert certInChain = chain.GetCert(i);
    Debug.WriteLine(Convert.ToString(i + 1) + ": " + certInChain.SubjectCN);

    // Get this certificate in base64 format
    string b64 = certInChain.GetEncoded();
    Debug.WriteLine(b64);

    i = i + 1;
}

// The output of the above code is:

// 1: tools.chilkat.io
// MIIGdzCCBV+gAwIBAgIQah36/0eUf3vjWnJEqykBITANBgkqhkiG9w0BAQsFADCB
// jzELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G
// A1UEBxMHU2FsZm9yZDEYMBYGA1UEChMPU2VjdGlnbyBMaW1pdGVkMTcwNQYDVQQD
// Ey5TZWN0aWdvIFJTQSBEb21haW4gVmFsaWRhdGlvbiBTZWN1cmUgU2VydmVyIENB
// MB4XDTE5MDkxMjAwMDAwMFoXDTIxMTAwOTIzNTk1OVowVDEhMB8GA1UECxMYRG9t
// YWluIENvbnRyb2wgVmFsaWRhdGVkMRQwEgYDVQQLEwtQb3NpdGl2ZVNTTDEZMBcG
// A1UEAxMQdG9vbHMuY2hpbGthdC5pbzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCC
// AQoCggEBANdVgSFZbZzl7LehEGTmXLSOCagd+f6ullW5jv5Vi79OswJZXDJm4YV3
// eotbiSCAioqdkpgH+IqK+GTh1lcHR2GPg5H3qQZiRjLvGKZGSQinhtC3XoYp2Eoh
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// 
// 2: Sectigo RSA Domain Validation Secure Server CA
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// 00u/I5sUKUErmgQfky3xxzlIPK1aEn8=
// 
// 3: USERTrust RSA Certification Authority
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// 
// 4: AAA Certificate Services
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