Load DER encoded X.509 Certificate (.cer, .crt)

Loads a digital certificate from a binary DER encoded X.509 Certificate (.cer, .crt) and fetches information about the cert.

Downloads for Windows/Linux and Install Instructions

require 'chilkat'

cert = Chilkat::CkCert.new()

#  LoadFromFile will load virtually any certificate format file.
#  It will auto-recognize the format and load appropiately.
success = cert.LoadFromFile("/Users/chilkat/testData/cer/chilkat_ssl.cer")
if (success != true)
    print cert.lastErrorText() + "\n";
    exit
end

#  DN = "Distinguished Name"
print "SubjectDN:" + cert.subjectDN() + "\n";

print "Common Name:" + cert.subjectCN() + "\n";
print "Issuer Common Name:" + cert.issuerCN() + "\n";

print "Serial Number:" + cert.serialNumber() + "\n";