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(Perl) Signed Zip as Base64 with XAdES-BESThis example is to help companies implement a solution for sending XAdES-BES to the Polish government for reporting purposes. Specifically: Przed podpisaniem deklaracja zbiorcza (PIT-11Z, PIT-8CZ, PIT-40Z, PIT-RZ) musi zostać The example demonstrates the following:
This example will also show the reverse:
use chilkat(); # This example assumes the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. # Zip the PIT-11Z.xml to create PIT-11Z.zip (not as a .zip file, but in-memory). $sbXmlToZip = chilkat::CkStringBuilder->new(); $success = $sbXmlToZip->LoadFile("qa_data/xml/PIT-11Z.xml","utf-8"); if ($success != 1) { print "Failed to load the XML to be zipped." . "\r\n"; exit; } $zip = chilkat::CkZip->new(); # Initialize the zip object. No file is created in this call. # It should always return 1. $success = $zip->NewZip("PIT-11Z.zip"); # Add the XML to be zipped. # entry is a ZipEntry $entry = $zip->AppendString("PIT-11Z.xml",$sbXmlToZip->getAsString()); # Write the zip to a BinData object. $bdZip = chilkat::CkBinData->new(); $zip->WriteBd($bdZip); # The contents of the bdZip will be retrieved in base64 format when needed below.. $gen = chilkat::CkXmlDSigGen->new(); $gen->put_SigLocation(""); $gen->put_SigLocationMod(0); $gen->put_SigId("Signature_2a8df7f8-b958-40cc-83f6-edb53b837347_19"); $gen->put_SigNamespacePrefix("ds"); $gen->put_SigNamespaceUri("http://www.w3.org/2000/09/xmldsig#"); $gen->put_SigValueId("SignatureValue_2a8df7f8-b958-40cc-83f6-edb53b837347_52"); $gen->put_SignedInfoId("SignedInfo_2a8df7f8-b958-40cc-83f6-edb53b837347_41"); $gen->put_SignedInfoCanonAlg("C14N"); $gen->put_SignedInfoDigestMethod("sha1"); # Set the KeyInfoId before adding references.. $gen->put_KeyInfoId("KeyInfo_2a8df7f8-b958-40cc-83f6-edb53b837347_24"); # Create an Object to be added to the Signature. $object1 = chilkat::CkXml->new(); $object1->put_Tag("xades:QualifyingProperties"); $object1->AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#"); $object1->AddAttribute("Id","QualifyingProperties_2a8df7f8-b958-40cc-83f6-edb53b837347_43"); $object1->AddAttribute("Target","#Signature_2a8df7f8-b958-40cc-83f6-edb53b837347_19"); $object1->UpdateAttrAt("xades:SignedProperties",1,"Id","SignedProperties_2a8df7f8-b958-40cc-83f6-edb53b837347_4e"); $object1->UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties",1,"Id","SignedSignatureProperties_2a8df7f8-b958-40cc-83f6-edb53b837347_0a"); # Chilkat will replace the strings "TO BE GENERATED BY CHILKAT" with actual values when the signature is created. $object1->UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT"); # Note: It may be that http://www.w3.org/2001/04/xmlenc#sha256 is needed in the following line instead of http://www.w3.org/2000/09/xmldsig#sha1 $object1->UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",1,"Algorithm","http://www.w3.org/2000/09/xmldsig#sha1"); $object1->UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT"); $object1->UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2","TO BE GENERATED BY CHILKAT"); $object1->UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties",1,"Id","SignedDataObjectProperties_2a8df7f8-b958-40cc-83f6-edb53b837347_4b"); $object1->UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",1,"ObjectReference","#Reference1_2a8df7f8-b958-40cc-83f6-edb53b837347_27"); $object1->UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description","MIME-Version: 1.0\r\nContent-Type: application/zip\r\nContent-Transfer-Encoding: binary\r\nContent-Disposition: filename="PIT-11Z.zip""); $object1->UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier",1,"Qualifier","OIDAsURI"); $object1->UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier","http://www.certum.pl/OIDAsURI/signedFile/1.2.616.1.113527.3.1.1.3.1"); $object1->UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Description","Opis formatu dokumentu oraz jego pelna nazwa"); $object1->UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:DocumentationReferences|xades:DocumentationReference","http://www.certum.pl/OIDAsURI/signedFile.pdf"); $object1->UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","application/zip"); $object1->UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:CommitmentTypeId|xades:Identifier","http://uri.etsi.org/01903/v1.2.2#ProofOfApproval"); $object1->UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:AllSignedDataObjects",""); $object1->UpdateAttrAt("xades:UnsignedProperties",1,"Id","UnsignedProperties_2a8df7f8-b958-40cc-83f6-edb53b837347_55"); # Emit XML in compact (single-line) format to avoid whitespace problems. $object1->put_EmitCompact(1); $gen->AddObject("",$object1->getXml(),"",""); # Create an Object to be added to the Signature. # This is where we add the base64 representation of the PIT-11Z.zip $gen->AddObject("Object1_2a8df7f8-b958-40cc-83f6-edb53b837347",$bdZip->getEncoded("base64"),"","http://www.w3.org/2000/09/xmldsig#base64"); # -------- Reference 1 -------- $gen->AddObjectRef("Object1_2a8df7f8-b958-40cc-83f6-edb53b837347","sha1","C14N_WithComments","",""); $gen->SetRefIdAttr("Object1_2a8df7f8-b958-40cc-83f6-edb53b837347","Reference1_2a8df7f8-b958-40cc-83f6-edb53b837347_27"); # -------- Reference 2 -------- $gen->AddObjectRef("SignedProperties_2a8df7f8-b958-40cc-83f6-edb53b837347_4e","sha1","","","http://uri.etsi.org/01903#SignedProperties"); $gen->SetRefIdAttr("SignedProperties_2a8df7f8-b958-40cc-83f6-edb53b837347_4e","SignedProperties-Reference_2a8df7f8-b958-40cc-83f6-edb53b837347_28"); # 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"); $gen->put_X509Type("Certificate"); # This will be an enveloping signature where the Signature element # is the XML document root, the signed data is contained within Object # tag(s) within the Signature. # Therefore, pass an empty sbXml to CreateXmlDsigSb. $sbXml = chilkat::CkStringBuilder->new(); # The Polish government's XmlDSig implementation requires that we reproduce an attribute-sorting error. # (This is an error in the XML canonicalization that is not noticed when both the signature-creation code and signature-verification code use # the same XML canonicalization implementation w/ the bug.) $gen->put_Behaviors("AttributeSortingBug,CompactSignedXml"); # 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 signature we just produced... $verifier = chilkat::CkXmlDSig->new(); $success = $verifier->LoadSignatureSb($sbXml); if ($success != 1) { print $verifier->lastErrorText() . "\r\n"; exit; } $verified = $verifier->VerifySignature(1); if ($verified != 1) { print $verifier->lastErrorText() . "\r\n"; exit; } print "This signature was successfully verified." . "\r\n"; # ------------------------------------ # Finally, let's extract the .zip from the signed XML, and then unzip the original PIT-11Z.xml from the in-memory zip. $xml = chilkat::CkXml->new(); $xml->LoadSb($sbXml,1); # The base64 image of the PIT-11Z.zip is in the 2nd ds:Object child of the ds:Signature (the ds:Signature is the root element of the signed XML). # (ds:Object[0] would be the 1st ds:Object child. Index 1 is the 2nd ds:Object child.) $strZipBase64 = $xml->getChildContent("ds:Object[1]"); $bdZip->Clear(); $bdZip->AppendEncoded($strZipBase64,"base64"); if ($bdZip->get_NumBytes() == 0) { print "Something went wrong.. we dont' have any data.." . "\r\n"; exit; } $success = $zip->OpenBd($bdZip); if ($success != 1) { print $zip->lastErrorText() . "\r\n"; exit; } # Get the 1st file in the zip, which should be the PIT-11Z.xml # entry is a ZipEntry $entry = $zip->GetEntryByIndex(0); if ($zip->get_LastMethodSuccess() != 1) { print "Zip contains no files..." . "\r\n"; exit; } # Get the XML: $origXml = $entry->unzipToString(0,"utf-8"); print "Original XML extracted from base64 zip:" . "\r\n"; print $origXml . "\r\n"; |
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