(VBScript) CADES-BES Signature using ePass2003 Token

See more Egypt ITIDA Examples

Demonstrates using a certificate and private key located on an ePass2003 USB token to create a CADES-BES signature.

(Demonstrates how to create a .p7s signature that fits Egypt's ITIDA requirements where Chilkat automatically does the ITIDA JSON canonicalization.)

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.ScMinidriver")
set scmd = CreateObject("Chilkat.ScMinidriver")

' Reader names (smart card readers or USB tokens) can be discovered
' via List Readers or Find Smart Cards
readerName = "FS USB Token 0"
success = scmd.AcquireContext(readerName)
If (success = 0) Then
    outFile.WriteLine(scmd.LastErrorText)
    WScript.Quit
End If

' If successful, the name of the currently inserted smart card is available:
outFile.WriteLine("Card name: " & scmd.CardName)

' If desired, perform regular PIN authentication with the smartcard.
' For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example
retval = scmd.PinAuthenticate("user","12345678")
If (retval <> 0) Then
    outFile.WriteLine("PIN Authentication failed.")
End If

' You can find a cerficate using any of the following certificate parts:
' "subjectDN" -- The full distinguished name of the cert.
' "subjectDN_withTags" -- Same as above, but in a format that includes the subject part tags, such as the "CN=" in "CN=something"
' "subjectCN" -- The common name part (CN) of the certificate's subject.
' "serial" -- The certificate serial number.
' "serial:issuerCN" -- The certificate serial number + the issuer's common name, delimited with a colon char.
' These are the same certificate parts that can be retrieved by listing certificates on the smart card (or USB token).
' See List Certificates on Smart Card Example
certPart = "subjectCN"
partValue = "Matt"

' If the certificate is found, it is loaded into the cert object.
' Note: We imported this certificate from a .p12/.pfx using code such as this Example to Import a .pfx/.p12 onto a Smart Card
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert")
set cert = CreateObject("Chilkat.Cert")
success = scmd.FindCert(certPart,partValue,cert)
If (success = 0) Then
    outFile.WriteLine("Failed to find the certificate.")
    success = scmd.DeleteContext()
    WScript.Quit
End If

outFile.WriteLine("Successfully loaded the cert object from the smart card / USB token.")

' Note: When successful, the cert object is internally linked to the ScMinidriver object's authenticated session.
' The cert object can now be used to sign or do other cryptographic operations that occur on the smart card / USB token.
' If your application calls PinDeauthenticate or DeleteContext, the cert will no longer be able to sign on the smart card
' because the smart card ScMinidriver session will no longer be authenticated or deleted.

' ------------------------------------------------------------------------------------------------------------

' Here we have to code to create the CADES-BES signature using Chilkat Crypt2..
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Crypt2")
set crypt = CreateObject("Chilkat.Crypt2")

' Tell the crypt class to use the cert on the ePass2003 token.
success = crypt.SetSigningCert(cert)
If (success <> 1) Then
    outFile.WriteLine(crypt.LastErrorText)
    WScript.Quit
End If

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
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"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
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,
'       }
' 

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
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())

' ------------------------------------------------------------------------------------------------------------
' Cleanup our ScMinidriver session...

' When finished with operations that required authentication, you may if you wish, deauthenticate the session.
success = scmd.PinDeauthenticate("user")
If (success = 0) Then
    outFile.WriteLine(scmd.LastErrorText)
End If

' Delete the context when finished with the card.
success = scmd.DeleteContext()
If (success = 0) Then
    outFile.WriteLine(scmd.LastErrorText)
End If


outFile.Close