(PowerShell) Create XAdES-T Signed XML

See more XAdES Examples

This 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evidence that the signature existed at a specific point in time, even if the signer's certificate has expired or been revoked.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.

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# 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 = New-Object Chilkat.Xml
$xmlToSign.Tag = "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 = New-Object Chilkat.XmlDSigGen

$gen.SigLocation = "es:Dossier"
$gen.SigLocationMod = 0
$gen.SigId = "S9fe8096e-2cac-415d-9222-f6cf2ecb314b"
$gen.SigValueId = "VS9fe8096e-2cac-415d-9222-f6cf2ecb314b"
$gen.SignedInfoId = "SIS9fe8096e-2cac-415d-9222-f6cf2ecb314b"
$gen.SignedInfoCanonAlg = "EXCL_C14N"
$gen.SignedInfoDigestMethod = "sha256"

# Set the KeyInfoId before adding references..
$gen.KeyInfoId = "KS9fe8096e-2cac-415d-9222-f6cf2ecb314b"

# Create an Object to be added to the Signature.
$object1 = New-Object Chilkat.Xml
$object1.Tag = "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 = New-Object Chilkat.Xml
$object2.Tag = "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 = New-Object Chilkat.Cert
$success = $cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
if ($success -ne $true) {
    $($cert.LastErrorText)
    exit
}

$gen.SetX509Cert($cert,$true)

$gen.KeyInfoType = "X509Data"
$gen.X509Type = "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 = New-Object Chilkat.JsonObject
$jsonTsa.UpdateString("timestampToken.tsaUrl","http://timestamp.digicert.com")
$jsonTsa.UpdateBool("timestampToken.requestTsaCert",$true)
$gen.SetTsa($jsonTsa)

# Load XML to be signed...
$sbXml = New-Object Chilkat.StringBuilder
$xmlToSign.GetXmlSb($sbXml)

$gen.Behaviors = "IndentedSignature,OmitAlreadyDefinedSigNamespace"

# Sign the XML...
$success = $gen.CreateXmlDSigSb($sbXml)
if ($success -ne $true) {
    $($gen.LastErrorText)
    exit
}

# -----------------------------------------------

# Save the signed XML to a file.
$success = $sbXml.WriteFile("c:/temp/qa_output/signedXml.xml","utf-8",$false)

$($sbXml.GetAsString())

# ----------------------------------------
# Verify the signatures we just produced...
$verifier = New-Object Chilkat.XmlDSig
$success = $verifier.LoadSignatureSb($sbXml)
if ($success -ne $true) {
    $($verifier.LastErrorText)
    exit
}

$numSigs = $verifier.NumSignatures
$verifyIdx = 0
while ($verifyIdx -lt $numSigs) {
    $verifier.Selector = $verifyIdx
    $verified = $verifier.VerifySignature($true)
    if ($verified -ne $true) {
        $($verifier.LastErrorText)
        exit
    }

    $verifyIdx = $verifyIdx + 1
}

$("All signatures were successfully verified.")