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(Classic ASP) Create Egypt ITIDA CAdES-BES Signature with Automatic JSON CanonicalizationSee more Egypt ITIDA ExamplesDemonstrates 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.
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <% ' This example assumes 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.Crypt2") set crypt = Server.CreateObject("Chilkat.Crypt2") crypt.VerboseLogging = 1 ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert") set cert = Server.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 Response.Write "<pre>" & Server.HTMLEncode( cert.LastErrorText) & "</pre>" Response.End End If ' Tell the crypt class to use this cert. success = crypt.SetSigningCert(cert) If (success <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( crypt.LastErrorText) & "</pre>" Response.End End If ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject") set cmsOptions = Server.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 = Server.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 = Server.CreateObject("Chilkat.JsonObject") success = json.LoadFile("qa_data/itida/sdk.invoicing.eta.gov.eg/files/one-doc.json") If (success = 0) Then Response.Write "<pre>" & Server.HTMLEncode( json.LastErrorText) & "</pre>" Response.End 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 Response.Write "<pre>" & Server.HTMLEncode( crypt.LastErrorText) & "</pre>" Response.End End If Response.Write "<pre>" & Server.HTMLEncode( "Base64 signature:") & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( sigBase64) & "</pre>" ' Add the signature to the JSON. success = json.UpdateString("signatures[0].signatureType","I") success = json.UpdateString("signatures[0].value",sigBase64) Response.Write "<pre>" & Server.HTMLEncode( "JSON with signature added:") & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>" %> </body> </html> |
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