Perl

Sign Italian SPID Metadata XML

See more XML Digital Signatures Examples

Demonstrates how to create an XML digital signature for Italian SPID Metadata. Perl

use chilkat();

$success = 0;

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

$success = 1;

# Load the XML to be signed.
$sbXml = chilkat::CkStringBuilder->new();
$success = $sbXml->LoadFile("qa_data/xml_dsig/spid_metadata.xml","utf-8");
if ($success == 0) {
    print "Failed to load the input file." . "\r\n";
    exit;
}

# The XML to sign contains XML such as this:

# <?xml version="1.0" encoding="utf-8"?>
# <md:EntityDescriptor xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" entityID="https://***.it" ID="_AE17AFFF-A600-49D5-B81D-76EEA55B50FF">
#     <md:SPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol" AuthnRequestsSigned="true" WantAssertionsSigned="true">
#         <md:KeyDescriptor use="signing">
#             <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
#                 <ds:X509Data>
#                     <ds:X509Certificate>MIIF5...</ds:X509Certificate>
#                 </ds:X509Data>
#             </ds:KeyInfo>
#         </md:KeyDescriptor>
#         <md:KeyDescriptor use="encryption">
#             <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
#                 <ds:X509Data>
#                     <ds:X509Certificate>MIIF5...</ds:X509Certificate>
#                 </ds:X509Data>
#             </ds:KeyInfo>
#         </md:KeyDescriptor>
#         <md:SingleLogoutService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://***.it/it-it/spid/logout"/>
#         <md:NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:transient</md:NameIDFormat>
#         <md:AssertionConsumerService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://***.it/it-it/spid/loginresp" index="0" isDefault="true"/>
#         <md:AttributeConsumingService index="1">
#             <md:ServiceName xml:lang="it">Servizi Online</md:ServiceName>
#             <md:ServiceDescription xml:lang="it">Accesso ai Servizi Online</md:ServiceDescription>
#             <md:RequestedAttribute Name="spidCode" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
#             <md:RequestedAttribute Name="name" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
#             <md:RequestedAttribute Name="familyName" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
#             <md:RequestedAttribute Name="fiscalNumber" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
#         </md:AttributeConsumingService>
#     </md:SPSSODescriptor>
#     <md:Organization>
#         <md:OrganizationName xml:lang="it">SomeCompany s.r.l.</md:OrganizationName>
#         <md:OrganizationDisplayName xml:lang="it">SomeCompany s.r.l.</md:OrganizationDisplayName>
#         <md:OrganizationURL xml:lang="it">https://***.it</md:OrganizationURL>
#     </md:Organization>
# </md:EntityDescriptor>

$gen = chilkat::CkXmlDSigGen->new();

$gen->put_SigLocation("md:EntityDescriptor|md:SPSSODescriptor");
$gen->put_SigLocationMod(2);
$gen->put_SignedInfoCanonAlg("EXCL_C14N");
$gen->put_SignedInfoDigestMethod("sha256");

# -------- Reference 1 --------
$gen->AddSameDocRef("_AE17AFFF-A600-49D5-B81D-76EEA55B50FF","sha256","EXCL_C14N","","");

# Provide a certificate + private key. (PFX password is test123)
$cert = chilkat::CkCert->new();
$success = $cert->LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123");
if ($success != 1) {
    print $cert->lastErrorText() . "\r\n";
    exit;
}

$gen->SetX509Cert($cert,1);

$gen->put_KeyInfoType("X509Data+KeyValue");
$gen->put_X509Type("Certificate");

$gen->put_Behaviors("IndentedSignature,ForceAddEnvelopedSignatureTransform,OmitAlreadyDefinedSigNamespace");

# Sign the XML...
$success = $gen->CreateXmlDSigSb($sbXml);
if ($success != 1) {
    print $gen->lastErrorText() . "\r\n";
    exit;
}

# -----------------------------------------------

# Save the signed XML to a file.
$success = $sbXml->WriteFile("qa_output/signedXml.xml","utf-8",0);

print $sbXml->getAsString() . "\r\n";

# ----------------------------------------
# Verify the signatures we just produced...
$verifier = chilkat::CkXmlDSig->new();
$success = $verifier->LoadSignatureSb($sbXml);
if ($success != 1) {
    print $verifier->lastErrorText() . "\r\n";
    exit;
}

$numSigs = $verifier->get_NumSignatures();
$verifyIdx = 0;
while ($verifyIdx < $numSigs) {
    $verifier->put_Selector($verifyIdx);
    $verified = $verifier->VerifySignature(1);
    if ($verified != 1) {
        print $verifier->lastErrorText() . "\r\n";
        exit;
    }

    $verifyIdx = $verifyIdx + 1;
}

print "All signatures were successfully verified." . "\r\n";