(Ruby) 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 Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

cert = Chilkat::CkCert.new()

# This example will get the SSL server certificate for tools.chilkat.io
# which we happen to have locally installed in our Windows certificate store.
success = cert.LoadByCommonName("tools.chilkat.io")
if (success == false)
    print cert.lastErrorText() + "\n";
    exit
end

# chain is a CkCertChain
chain = cert.GetCertChain()
if (cert.get_LastMethodSuccess() == false)
    print cert.lastErrorText() + "\n";
    exit
end

numCerts = chain.get_NumCerts()
i = 0
while i < numCerts
    # certInChain is a CkCert
    certInChain = chain.GetCert(i)
    print (i + 1).to_s() + ": " + certInChain.subjectCN() + "\n";

    # Get this certificate in base64 format
    b64 = certInChain.getEncoded()
    print b64 + "\n";

    i = i + 1
end

# The output of the above code is:

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