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(Chilkat2-Python) XML-DSig Add Object Reference with Transforms Specified ExplicitlyDemonstrates how to use the new AddObjectRef2 method to explicitly specify the XML Transforms fragment.
import sys import chilkat2 # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. success = True # Build the following XML to be signed: # <?xml version="1.0" encoding="utf-8"?> # <InitUpload xmlns="http://e-dokumenty.mf.gov.pl"> # <DocumentType>JPK</DocumentType> # <Version>01.02.01.20160617</Version> # <EncryptionKey algorithm="RSA" encoding="Base64" mode="ECB" padding="PKCS#1">xxxx</EncryptionKey> # <DocumentList> # <Document> # <FormCode schemaVersion="1-1" systemCode="JPK_VAT (3)">JPK_VAT</FormCode> # <FileName>JPK_VAT_3_v1-1_20181201.xml</FileName> # <ContentLength>8736</ContentLength> # <HashValue algorithm="SHA-256" encoding="Base64">JEDI1pItwh6dj/Xx1uts/x61qnjZ4DLHpkZMhmf1oKQ=</HashValue> # <FileSignatureList filesNumber="1"> # <Packaging> # <SplitZip mode="zip" type="split"/> # </Packaging> # <Encryption> # <AES block="16" mode="CBC" padding="PKCS#7" size="256"> # <IV bytes="16" encoding="Base64">z64oN9zXHt1+S3XACRSCYw==</IV> # </AES> # </Encryption> # <FileSignature> # <OrdinalNumber>1</OrdinalNumber> # <FileName>JPK_VAT_3_v1-1_20181201-000.xml.zip.aes</FileName> # <ContentLength>16</ContentLength> # <HashValue algorithm="MD5" encoding="Base64">5MX0q1935fvMjLFV7E1yDw==</HashValue> # </FileSignature> # </FileSignatureList> # </Document> # </DocumentList> # </InitUpload> # Use this online tool to generate code from sample XML: # Generate Code to Create XML xmlToSign = chilkat2.Xml() xmlToSign.Tag = "InitUpload" xmlToSign.AddAttribute("xmlns","http://e-dokumenty.mf.gov.pl") xmlToSign.UpdateChildContent("DocumentType","JPK") xmlToSign.UpdateChildContent("Version","01.02.01.20160617") xmlToSign.UpdateAttrAt("EncryptionKey",True,"algorithm","RSA") xmlToSign.UpdateAttrAt("EncryptionKey",True,"encoding","Base64") xmlToSign.UpdateAttrAt("EncryptionKey",True,"mode","ECB") xmlToSign.UpdateAttrAt("EncryptionKey",True,"padding","PKCS#1") xmlToSign.UpdateChildContent("EncryptionKey","xxxx") xmlToSign.UpdateAttrAt("DocumentList|Document|FormCode",True,"schemaVersion","1-1") xmlToSign.UpdateAttrAt("DocumentList|Document|FormCode",True,"systemCode","JPK_VAT (3)") xmlToSign.UpdateChildContent("DocumentList|Document|FormCode","JPK_VAT") xmlToSign.UpdateChildContent("DocumentList|Document|FileName","JPK_VAT_3_v1-1_20181201.xml") xmlToSign.UpdateChildContent("DocumentList|Document|ContentLength","8736") xmlToSign.UpdateAttrAt("DocumentList|Document|HashValue",True,"algorithm","SHA-256") xmlToSign.UpdateAttrAt("DocumentList|Document|HashValue",True,"encoding","Base64") xmlToSign.UpdateChildContent("DocumentList|Document|HashValue","JEDI1pItwh6dj/Xx1uts/x61qnjZ4DLHpkZMhmf1oKQ=") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList",True,"filesNumber","1") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Packaging|SplitZip",True,"mode","zip") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Packaging|SplitZip",True,"type","split") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",True,"block","16") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",True,"mode","CBC") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",True,"padding","PKCS#7") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",True,"size","256") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES|IV",True,"bytes","16") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES|IV",True,"encoding","Base64") xmlToSign.UpdateChildContent("DocumentList|Document|FileSignatureList|Encryption|AES|IV","z64oN9zXHt1+S3XACRSCYw==") xmlToSign.UpdateChildContent("DocumentList|Document|FileSignatureList|FileSignature|OrdinalNumber","1") xmlToSign.UpdateChildContent("DocumentList|Document|FileSignatureList|FileSignature|FileName","JPK_VAT_3_v1-1_20181201-000.xml.zip.aes") xmlToSign.UpdateChildContent("DocumentList|Document|FileSignatureList|FileSignature|ContentLength","16") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|FileSignature|HashValue",True,"algorithm","MD5") xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|FileSignature|HashValue",True,"encoding","Base64") xmlToSign.UpdateChildContent("DocumentList|Document|FileSignatureList|FileSignature|HashValue","5MX0q1935fvMjLFV7E1yDw==") gen = chilkat2.XmlDSigGen() gen.SigLocation = "InitUpload" gen.SigLocationMod = 0 gen.SigId = "id-1234" gen.SigNamespacePrefix = "ds" gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#" gen.SignedInfoCanonAlg = "EXCL_C14N" gen.SignedInfoDigestMethod = "sha256" # Create an Object to be added to the Signature. # <xades:QualifyingProperties Target="#id-1234" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#"> # <xades:SignedProperties Id="xades-id-1234"> # <xades:SignedSignatureProperties> # <xades:SigningTime>TO BE GENERATED BY CHILKAT</xades:SigningTime> # <xades:SigningCertificate> # <xades:Cert> # <xades:CertDigest> # <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/> # <ds:DigestValue>TO BE GENERATED BY CHILKAT</ds:DigestValue> # </xades:CertDigest> # <xades:IssuerSerial> # <ds:X509IssuerName>TO BE GENERATED BY CHILKAT</ds:X509IssuerName> # <ds:X509SerialNumber>TO BE GENERATED BY CHILKAT</ds:X509SerialNumber> # </xades:IssuerSerial> # </xades:Cert> # </xades:SigningCertificate> # </xades:SignedSignatureProperties> # <xades:SignedDataObjectProperties> # <xades:DataObjectFormat ObjectReference="#r-id-1"> # <xades:MimeType>text/xml</xades:MimeType> # </xades:DataObjectFormat> # </xades:SignedDataObjectProperties> # </xades:SignedProperties> # </xades:QualifyingProperties> object1 = chilkat2.Xml() object1.Tag = "xades:QualifyingProperties" object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#") object1.AddAttribute("Target","#id-1234") object1.UpdateAttrAt("xades:SignedProperties",True,"Id","xades-id-1234") # 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.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT") object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",True,"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|xades:DataObjectFormat",True,"ObjectReference","#r-id-1") object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","text/xml") gen.AddObject("",object1.GetXml(),"","") # -------- Reference 1 -------- # Build the following Transforms fragment: # <ds:Transforms> # <ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116"> # <ds:XPath>not(ancestor-or-self::ds:Signature)</ds:XPath> # </ds:Transform> # <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/> # </ds:Transforms> xml1 = chilkat2.Xml() xml1.Tag = "ds:Transforms" xml1.UpdateAttrAt("ds:Transform",True,"Algorithm","http://www.w3.org/TR/1999/REC-xpath-19991116") xml1.UpdateChildContent("ds:Transform|ds:XPath","not(ancestor-or-self::ds:Signature)") xml1.UpdateAttrAt("ds:Transform[1]",True,"Algorithm","http://www.w3.org/2001/10/xml-exc-c14n#") gen.AddSameDocRef2("","sha256",xml1,"") gen.SetRefIdAttr("","r-id-1") # -------- Reference 2 -------- # Build the following Transforms fragment: # <ds:Transforms> # <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/> # </ds:Transforms> xml2 = chilkat2.Xml() xml2.Tag = "ds:Transforms" xml2.UpdateAttrAt("ds:Transform",True,"Algorithm","http://www.w3.org/2001/10/xml-exc-c14n#") gen.AddObjectRef2("xades-id-1234","sha256",xml2,"http://uri.etsi.org/01903#SignedProperties") # Provide a certificate + private key. (PFX password is test123) cert = chilkat2.Cert() success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123") if (success != True): print(cert.LastErrorText) sys.exit() gen.SetX509Cert(cert,True) gen.KeyInfoType = "X509Data" gen.X509Type = "Certificate" # Load XML to be signed... sbXml = chilkat2.StringBuilder() xmlToSign.GetXmlSb(sbXml) gen.Behaviors = "IndentedSignature" # Sign the XML... success = gen.CreateXmlDSigSb(sbXml) if (success != True): print(gen.LastErrorText) sys.exit() # ----------------------------------------------- # Save the signed XML to a file. success = sbXml.WriteFile("qa_output/signedXml.xml","utf-8",False) print(sbXml.GetAsString()) # ---------------------------------------- # Verify the signatures we just produced... verifier = chilkat2.XmlDSig() success = verifier.LoadSignatureSb(sbXml) if (success != True): print(verifier.LastErrorText) sys.exit() numSigs = verifier.NumSignatures verifyIdx = 0 while verifyIdx < numSigs : verifier.Selector = verifyIdx verified = verifier.VerifySignature(True) if (verified != True): print(verifier.LastErrorText) sys.exit() verifyIdx = verifyIdx + 1 print("All signatures were successfully verified.") |
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