(Ruby) Iterate over Certificates on Connected Smart Cards and USB Tokens

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Demonstrates how to iterate over the certificates on connected smart cards and USB tokens.

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()

# Detects connected smart cards and USB tokens
# and loads the certificate store object with the certificates found.
# Works on Windows, MacOS, iOS, and Linux.
# Note: If something is not detected, contact info@chilkatsoft.com
# for help or for workarounds.
argNotUsed = ""
success = certStore.OpenSmartcard(argNotUsed)
if (success == false)
    print certStore.lastErrorText() + "\n";
    exit
end

cert = Chilkat::CkCert.new()

numCerts = certStore.get_NumCertificates()
i = 0

while i < numCerts
    # Load the cert object with the Nth certificate found in the connected HSMs
    certStore.GetCert(i,cert)
    print i.to_s() + ": " + cert.subjectCN() + "\n";
    i = i + 1
end