VBScript
VBScript
Create Egypt ITIDA CAdES-BES Signature with Automatic JSON Canonicalization
See more Egypt ITIDA Examples
Demonstrates how to create a .p7s signature that fits Egypt's ITIDA requirements where Chilkat automatically does the ITIDA JSON canonicalization.Note: This example requires Chilkat v9.5.0.75 or greater.
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Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)
success = 0
' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.
set crypt = CreateObject("Chilkat.Crypt2")
crypt.VerboseLogging = 1
set cert = CreateObject("Chilkat.Cert")
cert.VerboseLogging = 1
' Set the smart card PIN, which will be needed for signing.
cert.SmartCardPin = "12345678"
' There are many ways to load the certificate.
' This example was created for a customer using an ePass2003 USB token.
' Assuming the USB token is the only source of a hardware-based private key..
success = cert.LoadFromSmartcard("")
If (success <> 1) Then
outFile.WriteLine(cert.LastErrorText)
WScript.Quit
End If
' Tell the crypt class to use this cert.
success = crypt.SetSigningCert(cert)
If (success <> 1) Then
outFile.WriteLine(crypt.LastErrorText)
WScript.Quit
End If
set cmsOptions = CreateObject("Chilkat.JsonObject")
' Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used.
success = cmsOptions.UpdateBool("DigestData",1)
success = cmsOptions.UpdateBool("OmitAlgorithmIdNull",1)
' Indicate that we are passing normal JSON and we want Chilkat do automatically
' do the ITIDA JSON canonicalization:
success = cmsOptions.UpdateBool("CanonicalizeITIDA",1)
crypt.CmsOptions = cmsOptions.Emit()
' The CadesEnabled property applies to all methods that create CMS/PKCS7 signatures.
' To create a CAdES-BES signature, set this property equal to true.
crypt.CadesEnabled = 1
crypt.HashAlgorithm = "sha256"
set jsonSigningAttrs = CreateObject("Chilkat.JsonObject")
success = jsonSigningAttrs.UpdateInt("contentType",1)
success = jsonSigningAttrs.UpdateInt("signingTime",1)
success = jsonSigningAttrs.UpdateInt("messageDigest",1)
success = jsonSigningAttrs.UpdateInt("signingCertificateV2",1)
crypt.SigningAttributes = jsonSigningAttrs.Emit()
' By default, all the certs in the chain of authentication are included in the signature.
' If desired, we can choose to only include the signing certificate:
crypt.IncludeCertChain = 0
' Pass a JSON document such as the following. Chilkat will do the ITIDA canonicalization.
' (It is the canonicalized JSON that gets signed.)
' {
' "issuer":{
' "address":{
' "branchID":"0",
' "country":"EG",
' "regionCity":"Cairo",
' "postalCode":"",
' "buildingNumber":"0",
' "street":"123rd Street",
' "governate":"GOVERNATE"
' },
' "type":"B",
' "id":"209999899",
' "name":"Xyz SAE"
' },
' "receiver":{
' "address":{
' "country":"EG",
' "regionCity":"CAIRO",
' "postalCode":"11435",
' "buildingNumber":"0",
' "street":"Autostrad Road Abc",
' "governate":"GOVERNATE"
' },
' "type":"B",
' "id":"999999999",
' "name":"XYZ EGYPT FOR TRADE"
' },
' "documentType":"I",
' "documentTypeVersion":"1.0",
' "dateTimeIssued":"2020-11-15T11:04:53Z",
' "taxpayerActivityCode":"1073",
' "internalID":"ZZZZ999",
' "purchaseOrderReference":"2009199918",
' "salesOrderReference":"",
' "payment":{
' "bankName":"",
' "bankAddress":"",
' "bankAccountNo":"",
' "bankAccountIBAN":"",
' "swiftCode":"",
' "terms":""
' },
' "delivery":{
' "approach":"",
' "packaging":"",
' "dateValidity":"",
' "exportPort":"",
' "countryOfOrigin":"EG",
' "grossWeight":0,
' "netWeight":0,
' "terms":""
' },
' "invoiceLines":[
' {
' "description":"CDM Widget 48GX99X12BA",
' "itemType":"GS1",
' "itemCode":"7622213335056",
' "unitType":"CS",
' "quantity":1.00,
' "unitValue":{
' "currencySold":"EGP",
' "amountEGP":588.67,
' "amountSold":0,
' "currencyExchangeRate":0
' },
' "salesTotal":588.67,
' "total":603.97,
' "valueDifference":0,
' "totalTaxableFees":0,
' "netTotal":529.8,
' "itemsDiscount":0,
' "discount":{
' "rate":10.00,
' "amount":58.87
' },
' "taxableItems":[
' {
' "taxType":"T1",
' "amount":74.17,
' "subType":"No sub",
' "rate":14.00
' }
' ],
' "internalCode":"9099994"
' }
' ],
' "totalSales":588.67,
' "totalSalesAmount":588.67,
' "totalDiscountAmount":58.87,
' "netAmount":529.80,
' "taxTotals":[
' {
' "taxType":"T1",
' "amount":74.17
' }
' ],
' "extraDiscountAmount":0,
' "totalItemsDiscountAmount":0,
' "totalAmount":603.97,
' }
'
set json = CreateObject("Chilkat.JsonObject")
success = json.LoadFile("qa_data/itida/sdk.invoicing.eta.gov.eg/files/one-doc.json")
If (success = 0) Then
outFile.WriteLine(json.LastErrorText)
WScript.Quit
End If
json.EmitCompact = 0
' Create the CAdES-BES signature.
crypt.EncodingMode = "base64"
' Make sure we sign the utf-8 byte representation of the JSON string
crypt.Charset = "utf-8"
sigBase64 = crypt.SignStringENC(json.Emit())
If (crypt.LastMethodSuccess = 0) Then
outFile.WriteLine(crypt.LastErrorText)
WScript.Quit
End If
outFile.WriteLine("Base64 signature:")
outFile.WriteLine(sigBase64)
' Add the signature to the JSON.
success = json.UpdateString("signatures[0].signatureType","I")
success = json.UpdateString("signatures[0].value",sigBase64)
outFile.WriteLine("JSON with signature added:")
outFile.WriteLine(json.Emit())
outFile.Close