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(Go) Create XAdES-T Signed XMLSee more XAdES ExamplesThis example signs XML using the XAdES-T profile. XAdES-T is a profile within the XAdES standard that adds support for secure timestamping of signatures. Secure timestamping involves adding a timestamp to the signature, indicating the exact time when the signature was applied. Timestamping enhances the long-term validity of signatures by providing evidence that the signature existed at a specific point in time, even if the signer's certificate has expired or been revoked. XAdES-T signatures include elements for embedding timestamp data within the XML signature, along with information about the timestamp authority and the timestamp verification process. XAdES-T signatures are suitable for scenarios where long-term validity and integrity of signatures are essential, such as in legal and regulatory contexts where archived documents may need to be validated years or decades later.
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. success := true // Create the XML to be signed... // Use this online tool to generate code from sample XML: // Generate Code to Create XML // <?xml version="1.0" encoding="UTF-8"?> // <es:Dossier xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns="http://uri.etsi.org/01903/v1.3.2#" xmlns:es="https://www.microsec.hu/ds/e-szigno30#" xsi:schemaLocation="https://www.microsec.hu/ds/e-szigno30# https://www.microsec.hu/ds/e-szigno30.xsd"> // <es:DossierProfile Id="PObject0" OBJREF="Object0"> // <es:Title>e-akta.es3</es:Title> // <es:E-category>electronic dossier</es:E-category> // <es:CreationDate>2022-12-02T07:55:16Z</es:CreationDate> // </es:DossierProfile> // <es:Documents Id="Object0"/> // </es:Dossier> xmlToSign := chilkat.NewXml() xmlToSign.SetTag("es:Dossier") xmlToSign.AddAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance") xmlToSign.AddAttribute("xmlns:ds","http://www.w3.org/2000/09/xmldsig#") xmlToSign.AddAttribute("xmlns","http://uri.etsi.org/01903/v1.3.2#") xmlToSign.AddAttribute("xmlns:es","https://www.microsec.hu/ds/e-szigno30#") xmlToSign.AddAttribute("xsi:schemaLocation","https://www.microsec.hu/ds/e-szigno30# https://www.microsec.hu/ds/e-szigno30.xsd") xmlToSign.UpdateAttrAt("es:DossierProfile",true,"Id","PObject0") xmlToSign.UpdateAttrAt("es:DossierProfile",true,"OBJREF","Object0") xmlToSign.UpdateChildContent("es:DossierProfile|es:Title","e-akta.es3") xmlToSign.UpdateChildContent("es:DossierProfile|es:E-category","electronic dossier") xmlToSign.UpdateChildContent("es:DossierProfile|es:CreationDate","2022-12-02T07:55:16Z") xmlToSign.UpdateAttrAt("es:Documents",true,"Id","Object0") gen := chilkat.NewXmlDSigGen() gen.SetSigLocation("es:Dossier") gen.SetSigLocationMod(0) gen.SetSigId("S9fe8096e-2cac-415d-9222-f6cf2ecb314b") gen.SetSigValueId("VS9fe8096e-2cac-415d-9222-f6cf2ecb314b") gen.SetSignedInfoId("SIS9fe8096e-2cac-415d-9222-f6cf2ecb314b") gen.SetSignedInfoCanonAlg("EXCL_C14N") gen.SetSignedInfoDigestMethod("sha256") // Set the KeyInfoId before adding references.. gen.SetKeyInfoId("KS9fe8096e-2cac-415d-9222-f6cf2ecb314b") // Create an Object to be added to the Signature. object1 := chilkat.NewXml() object1.SetTag("es:SignatureProfile") object1.AddAttribute("Id","PS9fe8096e-2cac-415d-9222-f6cf2ecb314b") object1.AddAttribute("OBJREF","Object0") object1.AddAttribute("SIGREF","S9fe8096e-2cac-415d-9222-f6cf2ecb314b") object1.AddAttribute("SIGREFLIST","#Object0 #PS9fe8096e-2cac-415d-9222-f6cf2ecb314b #PObject0 #XS9fe8096e-2cac-415d-9222-f6cf2ecb314b") object1.UpdateChildContent("es:SignerName","EC Minsített-Tesztel Péterke") object1.UpdateChildContent("es:SDPresented","false") object1.UpdateChildContent("es:Type","signature") object1.UpdateAttrAt("es:Generator|es:Program",true,"name","e-Szigno") object1.UpdateAttrAt("es:Generator|es:Program",true,"version","3.3.6.8") object1.UpdateAttrAt("es:Generator|es:Device",true,"name","OpenSSL 1.1.1n 15 Mar 2022") object1.UpdateAttrAt("es:Generator|es:Device",true,"type","") gen.AddObject("O1S9fe8096e-2cac-415d-9222-f6cf2ecb314b",*object1.GetXml(),"","") // Create an Object to be added to the Signature. object2 := chilkat.NewXml() object2.SetTag("QualifyingProperties") object2.AddAttribute("Target","#S9fe8096e-2cac-415d-9222-f6cf2ecb314b") object2.AddAttribute("Id","QPS9fe8096e-2cac-415d-9222-f6cf2ecb314b") object2.UpdateAttrAt("SignedProperties",true,"Id","XS9fe8096e-2cac-415d-9222-f6cf2ecb314b") object2.UpdateChildContent("SignedProperties|SignedSignatureProperties|SigningTime","TO BE GENERATED BY CHILKAT") object2.UpdateAttrAt("SignedProperties|SignedSignatureProperties|SigningCertificateV2|Cert|CertDigest|ds:DigestMethod",true,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256") object2.UpdateChildContent("SignedProperties|SignedSignatureProperties|SigningCertificateV2|Cert|CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT") object2.UpdateChildContent("SignedProperties|SignedSignatureProperties|SigningCertificateV2|Cert|IssuerSerialV2","TO BE GENERATED BY CHILKAT") object2.UpdateChildContent("SignedProperties|SignedSignatureProperties|SignaturePolicyIdentifier|SignaturePolicyImplied","") object2.UpdateChildContent("SignedProperties|SignedSignatureProperties|SignerRoleV2|ClaimedRoles|ClaimedRole","tesztel") // Here we have the EncapsulatedTimestamp found in the unsigned signature properties. object2.UpdateAttrAt("UnsignedProperties|UnsignedSignatureProperties|SignatureTimeStamp",true,"Id","T72cb4961-4326-4319-857a-7cf55e7ef899") object2.UpdateAttrAt("UnsignedProperties|UnsignedSignatureProperties|SignatureTimeStamp|ds:CanonicalizationMethod",true,"Algorithm","http://www.w3.org/2001/10/xml-exc-c14n#") object2.UpdateAttrAt("UnsignedProperties|UnsignedSignatureProperties|SignatureTimeStamp|EncapsulatedTimeStamp",true,"Id","ET72cb4961-4326-4319-857a-7cf55e7ef899") object2.UpdateChildContent("UnsignedProperties|UnsignedSignatureProperties|SignatureTimeStamp|EncapsulatedTimeStamp","TO BE GENERATED BY CHILKAT") object2.UpdateAttrAt("UnsignedProperties|UnsignedSignatureProperties|TimeStampValidationData",true,"xmlns","http://uri.etsi.org/01903/v1.4.1#") object2.UpdateAttrAt("UnsignedProperties|UnsignedSignatureProperties|CertificateValues",true,"Id","CV18c7702d-d45b-44bc-853a-a720f41053cd") object2.UpdateAttrAt("UnsignedProperties|UnsignedSignatureProperties|CertificateValues|EncapsulatedX509Certificate",true,"Id","EC42db04c8-1422-407b-8c42-189353a55268") object2.UpdateChildContent("UnsignedProperties|UnsignedSignatureProperties|CertificateValues|EncapsulatedX509Certificate","BASE64_CONTENT") object2.UpdateAttrAt("UnsignedProperties|UnsignedSignatureProperties|CertificateValues|EncapsulatedX509Certificate[1]",true,"Id","EC04728b44-a32c-46c1-b9bb-85b1f6b3c7d3") object2.UpdateChildContent("UnsignedProperties|UnsignedSignatureProperties|CertificateValues|EncapsulatedX509Certificate[1]","BASE64_CONTENT") gen.AddObject("O2S9fe8096e-2cac-415d-9222-f6cf2ecb314b",*object2.GetXml(),"","") // -------- Reference 1 -------- gen.AddSameDocRef("Object0","sha256","EXCL_C14N","","") gen.SetRefIdAttr("Object0","Re1f816c4-7898-4544-9b41-f4156dc0c528") // -------- Reference 2 -------- gen.AddObjectRef("PS9fe8096e-2cac-415d-9222-f6cf2ecb314b","sha256","EXCL_C14N","","") gen.SetRefIdAttr("PS9fe8096e-2cac-415d-9222-f6cf2ecb314b","Ra873b616-e568-4c38-ae94-27fbff67cc43") // -------- Reference 3 -------- gen.AddSameDocRef("PObject0","sha256","EXCL_C14N","","") gen.SetRefIdAttr("PObject0","Ra5d85948-5d6a-4914-8c32-242f5d6d9e81") // -------- Reference 4 -------- gen.AddObjectRef("XS9fe8096e-2cac-415d-9222-f6cf2ecb314b","sha256","EXCL_C14N","","http://uri.etsi.org/01903#SignedProperties") gen.SetRefIdAttr("XS9fe8096e-2cac-415d-9222-f6cf2ecb314b","Ra7412a43-dc05-4e0a-ac84-e9a070214757") // 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() object2.DisposeXml() cert.DisposeCert() return } gen.SetX509Cert(cert,true) gen.SetKeyInfoType("X509Data") gen.SetX509Type("Certificate") // ------------------------------------------------------------------------------------------- // To have the EncapsulatedTimeStamp automatically added, we only need to do 2 things. // 1) Add the <xades:EncapsulatedTimeStamp Encoding="http://uri.etsi.org/01903/v1.2.2#DER">TO BE GENERATED BY CHILKAT</xades:EncapsulatedTimeStamp> // to the unsigned properties. // 2) Specify the TSA URL (Timestamping Authority URL). // Here we specify the TSA URL: // ------------------------------------------------------------------------------------------- jsonTsa := chilkat.NewJsonObject() jsonTsa.UpdateString("timestampToken.tsaUrl","http://timestamp.digicert.com") jsonTsa.UpdateBool("timestampToken.requestTsaCert",true) gen.SetTsa(jsonTsa) // Load XML to be signed... sbXml := chilkat.NewStringBuilder() xmlToSign.GetXmlSb(sbXml) gen.SetBehaviors("IndentedSignature,OmitAlreadyDefinedSigNamespace") // Sign the XML... success = gen.CreateXmlDSigSb(sbXml) if success != true { fmt.Println(gen.LastErrorText()) xmlToSign.DisposeXml() gen.DisposeXmlDSigGen() object1.DisposeXml() object2.DisposeXml() cert.DisposeCert() jsonTsa.DisposeJsonObject() sbXml.DisposeStringBuilder() return } // ----------------------------------------------- // Save the signed XML to a file. success = sbXml.WriteFile("c:/temp/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() object2.DisposeXml() cert.DisposeCert() jsonTsa.DisposeJsonObject() 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() object2.DisposeXml() cert.DisposeCert() jsonTsa.DisposeJsonObject() sbXml.DisposeStringBuilder() verifier.DisposeXmlDSig() return } verifyIdx = verifyIdx + 1 } fmt.Println("All signatures were successfully verified.") xmlToSign.DisposeXml() gen.DisposeXmlDSigGen() object1.DisposeXml() object2.DisposeXml() cert.DisposeCert() jsonTsa.DisposeJsonObject() sbXml.DisposeStringBuilder() verifier.DisposeXmlDSig() |
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