PFX to PEM (Certificate and Private Key Files)

Export a certificate and private key from a PFX to a pair of PEM files.

Download Chilkat Ruby Library

require 'chilkat'


certStore = Chilkat::CkCertStore.new()

#  Load the PFX file into a certificate store object

password = "myPassword"
success = certStore.LoadPfxFile("chilkat.pfx",password)
if (success != true)
    print certStore.lastErrorText() + "\n"
    exit
end

#  Find the cert to be exported by the subject:

# cert is a CkCert
cert = certStore.FindCertBySubject("Chilkat Software, Inc.")
if (cert == nil )
    print "Certificate not found." + "\n"
    exit
end

#  Does this cert have a private key?
if (cert.HasPrivateKey() == true)

    #  Get the private key.

    # pvkey is a CkPrivateKey
    pvkey = cert.ExportPrivateKey()

    #   Export the private key to a PEM file:
    success = pvkey.SaveRsaPemFile("chilkat_pkey.pem")
    if (success != true)
        print pvkey.lastErrorText() + "\n"
        exit
    end

end

#  Save the cert to a PEM file:
success = cert.ExportCertPemFile("chilkat_cert.pem")
if (success != true)
    print cert.lastErrorText() + "\n"
    exit
end