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Go
XML-DSig Add Object Reference with Transforms Specified Explicitly
Demonstrates how to use the new AddObjectRef2 method to explicitly specify the XML Transforms fragment.Chilkat Go Downloads
success := false
// 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 := chilkat.NewXml()
xmlToSign.SetTag("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 := chilkat.NewXmlDSigGen()
gen.SetSigLocation("InitUpload")
gen.SetSigLocationMod(0)
gen.SetSigId("id-1234")
gen.SetSigNamespacePrefix("ds")
gen.SetSigNamespaceUri("http://www.w3.org/2000/09/xmldsig#")
gen.SetSignedInfoCanonAlg("EXCL_C14N")
gen.SetSignedInfoDigestMethod("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 := chilkat.NewXml()
object1.SetTag("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 := chilkat.NewXml()
xml1.SetTag("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 := chilkat.NewXml()
xml2.SetTag("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 := chilkat.NewCert()
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
if success != true {
fmt.Println(cert.LastErrorText())
xmlToSign.DisposeXml()
gen.DisposeXmlDSigGen()
object1.DisposeXml()
xml1.DisposeXml()
xml2.DisposeXml()
cert.DisposeCert()
return
}
gen.SetX509Cert(cert,true)
gen.SetKeyInfoType("X509Data")
gen.SetX509Type("Certificate")
// Load XML to be signed...
sbXml := chilkat.NewStringBuilder()
xmlToSign.GetXmlSb(sbXml)
gen.SetBehaviors("IndentedSignature")
// Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
if success != true {
fmt.Println(gen.LastErrorText())
xmlToSign.DisposeXml()
gen.DisposeXmlDSigGen()
object1.DisposeXml()
xml1.DisposeXml()
xml2.DisposeXml()
cert.DisposeCert()
sbXml.DisposeStringBuilder()
return
}
// -----------------------------------------------
// Save the signed XML to a file.
success = sbXml.WriteFile("qa_output/signedXml.xml","utf-8",false)
fmt.Println(*sbXml.GetAsString())
// ----------------------------------------
// Verify the signatures we just produced...
verifier := chilkat.NewXmlDSig()
success = verifier.LoadSignatureSb(sbXml)
if success != true {
fmt.Println(verifier.LastErrorText())
xmlToSign.DisposeXml()
gen.DisposeXmlDSigGen()
object1.DisposeXml()
xml1.DisposeXml()
xml2.DisposeXml()
cert.DisposeCert()
sbXml.DisposeStringBuilder()
verifier.DisposeXmlDSig()
return
}
numSigs := verifier.NumSignatures()
verifyIdx := 0
for verifyIdx < numSigs {
verifier.SetSelector(verifyIdx)
verified := verifier.VerifySignature(true)
if verified != true {
fmt.Println(verifier.LastErrorText())
xmlToSign.DisposeXml()
gen.DisposeXmlDSigGen()
object1.DisposeXml()
xml1.DisposeXml()
xml2.DisposeXml()
cert.DisposeCert()
sbXml.DisposeStringBuilder()
verifier.DisposeXmlDSig()
return
}
verifyIdx = verifyIdx + 1
}
fmt.Println("All signatures were successfully verified.")
xmlToSign.DisposeXml()
gen.DisposeXmlDSigGen()
object1.DisposeXml()
xml1.DisposeXml()
xml2.DisposeXml()
cert.DisposeCert()
sbXml.DisposeStringBuilder()
verifier.DisposeXmlDSig()