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(C++) XML-DSig Add Object Reference with Transforms Specified ExplicitlyDemonstrates how to use the new AddObjectRef2 method to explicitly specify the XML Transforms fragment.
#include <CkXml.h> #include <CkXmlDSigGen.h> #include <CkCert.h> #include <CkStringBuilder.h> #include <CkXmlDSig.h> void ChilkatSample(void) { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. bool 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 CkXml xmlToSign; xmlToSign.put_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=="); CkXmlDSigGen gen; gen.put_SigLocation("InitUpload"); gen.put_SigLocationMod(0); gen.put_SigId("id-1234"); gen.put_SigNamespacePrefix("ds"); gen.put_SigNamespaceUri("http://www.w3.org/2000/09/xmldsig#"); gen.put_SignedInfoCanonAlg("EXCL_C14N"); gen.put_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> CkXml object1; object1.put_Tag("xades:QualifyingProperties"); object1.AddAttribute("Target","#id-1234"); object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#"); 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:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestMethod",true,"Algorithm","http://www.w3.org/2000/09/xmldsig#sha1"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509IssuerName","TO BE GENERATED BY CHILKAT"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509SerialNumber","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> CkXml xml1; xml1.put_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> CkXml xml2; xml2.put_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) CkCert cert; success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123"); if (success != true) { std::cout << cert.lastErrorText() << "\r\n"; return; } gen.SetX509Cert(cert,true); gen.put_KeyInfoType("X509Data"); gen.put_X509Type("Certificate"); // Load XML to be signed... CkStringBuilder sbXml; xmlToSign.GetXmlSb(sbXml); gen.put_Behaviors("IndentedSignature"); // Sign the XML... success = gen.CreateXmlDSigSb(sbXml); if (success != true) { std::cout << gen.lastErrorText() << "\r\n"; return; } // ----------------------------------------------- // Save the signed XML to a file. success = sbXml.WriteFile("qa_output/signedXml.xml","utf-8",false); std::cout << sbXml.getAsString() << "\r\n"; // ---------------------------------------- // Verify the signatures we just produced... CkXmlDSig verifier; success = verifier.LoadSignatureSb(sbXml); if (success != true) { std::cout << verifier.lastErrorText() << "\r\n"; return; } int numSigs = verifier.get_NumSignatures(); int verifyIdx = 0; while (verifyIdx < numSigs) { verifier.put_Selector(verifyIdx); bool verified = verifier.VerifySignature(true); if (verified != true) { std::cout << verifier.lastErrorText() << "\r\n"; return; } verifyIdx = verifyIdx + 1; } std::cout << "All signatures were successfully verified." << "\r\n"; } |
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