(Ruby) Find Certificate by Subject CN (Common Name)

See more Cert Store Examples

Demonstrates how to find a certificate having the specified subject CN.

Note: Requires Chilkat v10.1.2 or later.

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

require 'chilkat'

certStore = Chilkat::CkCertStore.new()

# This opens the Current User certificate store on Windows,
# On MacOS and iOS it opens the default Keychain.
readOnly = false
success = certStore.OpenCurrentUserStore(readOnly)
if (success == false)
    print certStore.lastErrorText() + "\n";
    exit
end

# Find the certificate having a Subject CN = "Example ABC".
json = Chilkat::CkJsonObject.new()
json.UpdateString("CN","Example ABC")

cert = Chilkat::CkCert.new()
success = certStore.FindCert(json,cert)
if (success == true)
    # Show the full distinguished name of the certificate.
    print "Found: " + cert.subjectDN() + "\n";
else
    print "Not found." + "\n";
end