Ruby

Verify XML Digital Signature

See more XML Digital Signatures Examples

Verifies XML signatures in an XML file. Ruby

require 'chilkat'

success = false

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

sbXml = Chilkat::CkStringBuilder.new()
success = sbXml.LoadFile("qa_data/xml_dsig_verify/csioz_sample.xml","utf-8")
if (success != true)
    print "Failed to load XML file." + "\n";
    exit
end

dsig = Chilkat::CkXmlDSig.new()

# First load the XML containing the signatures to be verified.
success = dsig.LoadSignatureSb(sbXml)
if (success != true)
    print dsig.lastErrorText() + "\n";
    exit
end

# It's possible that an XML document can contain multiple signatures.
# Each can be verified as follows:
i = 0
while i < dsig.get_NumSignatures()
    # Select the Nth signature by setting the Selector property.
    dsig.put_Selector(i)

    # The bVerifyReferenceDigests argument determines if we want
    # to also verify each reference digest.  If set to false,
    # then only the SignedInfo part of the Signature is verified.
    bVerifyReferenceDigests = true
    bVerified = dsig.VerifySignature(bVerifyReferenceDigests)
    print "Signature " + (i + 1).to_s() + " verified = " + bVerified.to_s() + "\n";

    i = i + 1
end