Chilkat2-Python

Create XAdES using Smart Card or USB Token

See more XAdES Examples

Demonstrates how to create an XAdES signed XML document using a certificate located on a smartcard or USB token. Chilkat2-Python

import sys
import chilkat2

success = False

# Load the XML to be signed.
xmlToSign = chilkat2.Xml()
success = xmlToSign.LoadXmlFile("qa_data/fattura_electronica/docToSign.xml")
if (success == False):
    print(xmlToSign.LastErrorText)
    sys.exit()

gen = chilkat2.XmlDSigGen()

gen.SigLocation = "p:FatturaElettronica"
gen.SigId = "xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504"
gen.SigNamespacePrefix = "ds"
gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#"
gen.SigValueId = "xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-sigvalue"
gen.SignedInfoCanonAlg = "C14N"
gen.SignedInfoDigestMethod = "sha256"

# Create an Object to be added to the Signature.
# Note: Chilkat will automatically populate the strings indicated by "TO BE GENERATED BY CHILKAT" with actual/correct values
# when the XML is signed.
object1 = chilkat2.Xml()
object1.Tag = "xades:QualifyingProperties"
object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#")
object1.AddAttribute("xmlns:xades141","http://uri.etsi.org/01903/v1.4.1#")
object1.AddAttribute("Target","#xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504")
object1.UpdateAttrAt("xades:SignedProperties",True,"Id","xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-signedprops")
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/2001/04/xmlenc#sha256")
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")

gen.AddObject("",object1.GetXml(),"","")

# -------- Reference 1 --------
gen.KeyInfoId = "xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-keyinfo"
gen.AddSameDocRef("xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-keyinfo","sha256","","","")

# -------- Reference 2 --------
gen.AddSameDocRef("","sha256","","","")
gen.SetRefIdAttr("","xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-ref0")

# -------- Reference 3 --------
gen.AddObjectRef("xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-signedprops","sha256","","","http://uri.etsi.org/01903#SignedProperties")

# ----------------------------------------------------------------
#  Load a certificate that has been pre-installed on the Windows system
#  This includes certificates on smartcards and USB tokens
cert = chilkat2.Cert()

#  You may provide the PIN here..
cert.SmartCardPin = "000000"

# Load the certificate on the smartcard currently in the reader (or on the USB token).
# Pass an empty string to allow Chilkat to automatically choose the CSP (Cryptographi Service Provider).
# See Load Certificate on Smartcard for information about explicitly selecting a particular CSP.
success = cert.LoadFromSmartcard("")
if (success == False):
    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,ForceAddEnvelopedSignatureTransform"

# Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
if (success == False):
    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 signature we just produced...
verifier = chilkat2.XmlDSig()
success = verifier.LoadSignatureSb(sbXml)
if (success == False):
    print(verifier.LastErrorText)
    sys.exit()

verified = verifier.VerifySignature(True)
if (verified != True):
    print(verifier.LastErrorText)
    sys.exit()

print("This signature was successfully verified.")