Chilkat2-Python
Chilkat2-Python
Create EBICS Signature (XMLDSIG)
See more EBICS Examples
Demonstrates how to create an EBICS signature. (EBICS is the Electronic Banking Internet Communication Standard)Chilkat Chilkat2-Python Downloads
import sys
import chilkat2
success = False
# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.
# This is the sample XML to be signed:
# <?xml version="1.0" encoding="UTF-8"?>
# <ebicsRequest
# xmlns="urn:org:ebics:H005"
# xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
# xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
# xsi:schemaLocation="urn:org:ebics:H005 ebics_request_H005.xsd"
# Version="H005" Revision="1">
# <header authenticate="true">
# <static>
# <HostID>EBIXHOST</HostID>
# <Nonce>BDA2312973890654FAC9879A89794E65</Nonce>
# <Timestamp>2005-01-30T15:30:45.123Z</Timestamp>
# <PartnerID>CUSTM001</PartnerID>
# <UserID>USR100</UserID>
# <Product Language="en" InstituteID="Institute ID">Product Identifier</Product>
# <OrderDetails>
# <AdminOrderType>BTU</AdminOrderType>
# <BTUOrderParams>
# <Service>
# <ServiceName>SCT</ServiceName>
# <MsgName>pain.001</MsgName>
# </Service>
# </BTUOrderParams>
# </OrderDetails>
# <BankPubKeyDigests>
# <Authentication Version="X002" Algorithm="http://www.w3.org/2001/04/xmlenc#sha256">1H/rQr2Axe9hYTV2n/tCp+3UIQQ=</Authentication>
# <Encryption Version="E002" Algorithm="http://www.w3.org/2001/04/xmlenc#sha256">2lwiueWOIER823jSoiOkjl+woeI=</Encryption>
# </BankPubKeyDigests>
# <SecurityMedium>0000</SecurityMedium>
# <NumSegments>2</NumSegments>
# </static>
# <mutable>
# <TransactionPhase>Initialisation</TransactionPhase>
# </mutable>
# </header>
# <body>
# <PreValidation authenticate="true">
# <DataDigest SignatureVersion="A006"> MTIzNDU2Nzg5MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTI=</DataDigest>
# </PreValidation>
# <DataTransfer>
# <DataEncryptionInfo authenticate="true">
# <EncryptionPubKeyDigest Version="E002" Algorithm="http://www.w3.org/2001/04/xmlenc#sha256">..here hash value of the public bank key for encryption..</EncryptionPubKeyDigest>
# <TransactionKey>EIGI4En6KEB6ArEzw+iq4N1wm6EptcyxXxStA...</TransactionKey>
# <HostID>EBIXHOST</HostID>
# </DataEncryptionInfo>
# <SignatureData authenticate="true">n6KEB6ArEzw+iq4N1wm6EptcyxXxStAO...</SignatureData>
# <DataDigest SignatureVersion="A006"> MTIzNDU2Nzg5MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTI=</DataDigest>
# </DataTransfer>
# </body>
# </ebicsRequest>
# Load the above XML from a file.
sbXml = chilkat2.StringBuilder()
success = sbXml.LoadFile("qa_data/xml_dsig/ebics/fileToSign.xml","utf-8")
if (success == False):
print("Failed to load XML input file.")
sys.exit()
gen = chilkat2.XmlDSigGen()
# We're going to insert the signature between the </header> and the <body>
gen.SigLocation = "ebicsRequest|header"
# Set the SigLocationMod = 1 to insert *after* the SigLocation
gen.SigLocationMod = 1
# We wish to use "ds" for the namespace..
gen.SigNamespacePrefix = "ds"
gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#"
# Specify canonicalization and hash algorithms
gen.SignedInfoCanonAlg = "C14N"
gen.SignedInfoDigestMethod = "sha256"
# Add the reference.
# For EBICS signatures, we pass the special keyword "EBICS" in the 1st argument.
# This tells Chilkat to create the reference using URI="#xpointer(//*[@authenticate='true'])"
gen.AddSameDocRef("EBICS","sha256","C14N","","")
# Provide our certificate + private key. (PFX password is test123)
# (You'll use your own certificate, which can be loaded from many different sources by Chilkat, including smart cards.)
cert = chilkat2.Cert()
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
if (success == False):
print(cert.LastErrorText)
sys.exit()
success = gen.SetX509Cert(cert,True)
if (success == False):
print(gen.LastErrorText)
sys.exit()
# We don't want a KeyInfo to be included.
gen.KeyInfoType = "None"
# Request an indented signature for readability.
# This can be removed after debugging (for a more compact signature).
gen.Behaviors = "IndentedSignature"
# Sign the XML.
success = gen.CreateXmlDSigSb(sbXml)
if (success == False):
print(gen.LastErrorText)
sys.exit()
# This is the XML with the EBICS signature added:
# <?xml version="1.0" encoding="UTF-8"?>
# <ebicsRequest
# xmlns="urn:org:ebics:H005"
# xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
# xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
# xsi:schemaLocation="urn:org:ebics:H005 ebics_request_H005.xsd"
# Version="H005" Revision="1">
# <header authenticate="true">
# <static>
# <HostID>EBIXHOST</HostID>
# <Nonce>BDA2312973890654FAC9879A89794E65</Nonce>
# <Timestamp>2005-01-30T15:30:45.123Z</Timestamp>
# <PartnerID>CUSTM001</PartnerID>
# <UserID>USR100</UserID>
# <Product Language="en" InstituteID="Institute ID">Product Identifier</Product>
# <OrderDetails>
# <AdminOrderType>BTU</AdminOrderType>
# <BTUOrderParams>
# <Service>
# <ServiceName>SCT</ServiceName>
# <MsgName>pain.001</MsgName>
# </Service>
# </BTUOrderParams>
# </OrderDetails>
# <BankPubKeyDigests>
# <Authentication Version="X002" Algorithm="http://www.w3.org/2001/04/xmlenc#sha256">1H/rQr2Axe9hYTV2n/tCp+3UIQQ=</Authentication>
# <Encryption Version="E002" Algorithm="http://www.w3.org/2001/04/xmlenc#sha256">2lwiueWOIER823jSoiOkjl+woeI=</Encryption>
# </BankPubKeyDigests>
# <SecurityMedium>0000</SecurityMedium>
# <NumSegments>2</NumSegments>
# </static>
# <mutable>
# <TransactionPhase>Initialisation</TransactionPhase>
# </mutable>
# </header><AuthSignature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
# <ds:SignedInfo>
# <ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
# <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
# <ds:Reference URI="#xpointer(//*[@authenticate='true'])">
# <ds:Transforms>
# <ds:Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
# </ds:Transforms>
# <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
# <ds:DigestValue>jjLD90BedcIVxFENHse6pOnRubVUlHpKjXUF5BUd00k=</ds:DigestValue>
# </ds:Reference>
# </ds:SignedInfo>
# <ds:SignatureValue>TlVgCXGf+3kKZ4LLwqxKoMaDZSBdiDRcGpdKB+tFZ7MZse9jDqtCai7PxcvRLC7yRGRj3XWrAB6IVqXh6tXGqiAtRfa7XjezvJTmUdMEJ3hTEgKqm7cKjjZX5C+lN5XTJghOy0X1bZBl/NBJu/aqY9s8PKsD5Cpm8bFkl2ReBBTCTSF5CRK3XZr+fvWuUX2sFrFS5UDXG8/cmhaKHT15LBOJgYuLYr80dtL251Jy20rIJ5KK8xUz9gpexE61Y/ml6mUPLm8YgdACRdNvCOPRLjCqYwFbnfgaVO6MtSRG819rWyNtBhqVxdzbntiV1UobKbwFiJ1LMMHF0NCo2LGLCw==</ds:SignatureValue>
# </AuthSignature>
# <body>
# <PreValidation authenticate="true">
# <DataDigest SignatureVersion="A006"> MTIzNDU2Nzg5MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTI=</DataDigest>
# </PreValidation>
# <DataTransfer>
# <DataEncryptionInfo authenticate="true">
# <EncryptionPubKeyDigest Version="E002" Algorithm="http://www.w3.org/2001/04/xmlenc#sha256">..here hash value of the public bank key for encryption..</EncryptionPubKeyDigest>
# <TransactionKey>EIGI4En6KEB6ArEzw+iq4N1wm6EptcyxXxStA...</TransactionKey>
# <HostID>EBIXHOST</HostID>
# </DataEncryptionInfo>
# <SignatureData authenticate="true">n6KEB6ArEzw+iq4N1wm6EptcyxXxStAO...</SignatureData>
# <DataDigest SignatureVersion="A006"> MTIzNDU2Nzg5MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTI=</DataDigest>
# </DataTransfer>
# </body>
# </ebicsRequest>
print("Here's the EBICS signed XML:")
print(sbXml.GetAsString())
print("----")
# Verify the signature we just produced...
verifier = chilkat2.XmlDSig()
success = verifier.LoadSignatureSb(sbXml)
if (success == False):
print(verifier.LastErrorText)
sys.exit()
# The signature has no KeyInfo, so we must externally provide the key.
pubKey = chilkat2.PublicKey()
cert.GetPublicKey(pubKey)
success = verifier.SetPublicKey(pubKey)
if (success == False):
print(verifier.LastErrorText)
sys.exit()
success = verifier.VerifySignature(True)
if (success == False):
print(verifier.LastErrorText)
sys.exit()
print("EBICS signature verified.")