(SQL Server) 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.

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

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @crypt int
    -- Use "Chilkat_9_5_0.Crypt2" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Crypt2', @crypt OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OASetProperty @crypt, 'VerboseLogging', 1

    DECLARE @cert int
    -- Use "Chilkat_9_5_0.Cert" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Cert', @cert OUT

    EXEC sp_OASetProperty @cert, 'VerboseLogging', 1

    -- Set the smart card PIN, which will be needed for signing.
    EXEC sp_OASetProperty @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..
    DECLARE @success int
    EXEC sp_OAMethod @cert, 'LoadFromSmartcard', @success OUT, ''
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    -- Tell the crypt class to use this cert.
    EXEC sp_OAMethod @crypt, 'SetSigningCert', @success OUT, @cert
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @crypt, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    DECLARE @cmsOptions int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @cmsOptions OUT

    -- Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used.
    EXEC sp_OAMethod @cmsOptions, 'UpdateBool', @success OUT, 'DigestData', 1
    EXEC sp_OAMethod @cmsOptions, 'UpdateBool', @success OUT, 'OmitAlgorithmIdNull', 1

    -- Indicate that we are passing normal JSON and we want Chilkat do automatically
    -- do the ITIDA JSON canonicalization:
    EXEC sp_OAMethod @cmsOptions, 'UpdateBool', @success OUT, 'CanonicalizeITIDA', 1

    EXEC sp_OAMethod @cmsOptions, 'Emit', @sTmp0 OUT
    EXEC sp_OASetProperty @crypt, 'CmsOptions', @sTmp0

    -- The CadesEnabled property applies to all methods that create CMS/PKCS7 signatures. 
    -- To create a CAdES-BES signature, set this property equal to true. 
    EXEC sp_OASetProperty @crypt, 'CadesEnabled', 1

    EXEC sp_OASetProperty @crypt, 'HashAlgorithm', 'sha256'

    DECLARE @jsonSigningAttrs int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @jsonSigningAttrs OUT

    EXEC sp_OAMethod @jsonSigningAttrs, 'UpdateInt', @success OUT, 'contentType', 1
    EXEC sp_OAMethod @jsonSigningAttrs, 'UpdateInt', @success OUT, 'signingTime', 1
    EXEC sp_OAMethod @jsonSigningAttrs, 'UpdateInt', @success OUT, 'messageDigest', 1
    EXEC sp_OAMethod @jsonSigningAttrs, 'UpdateInt', @success OUT, 'signingCertificateV2', 1
    EXEC sp_OAMethod @jsonSigningAttrs, 'Emit', @sTmp0 OUT
    EXEC sp_OASetProperty @crypt, 'SigningAttributes', @sTmp0

    -- 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:
    EXEC sp_OASetProperty @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,
    --       }
    -- 

    DECLARE @json int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT

    EXEC sp_OAMethod @json, 'LoadFile', @success OUT, 'qa_data/itida/sdk.invoicing.eta.gov.eg/files/one-doc.json'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @json, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @cmsOptions
        EXEC @hr = sp_OADestroy @jsonSigningAttrs
        EXEC @hr = sp_OADestroy @json
        RETURN
      END
    EXEC sp_OASetProperty @json, 'EmitCompact', 0

    -- Create the CAdES-BES signature.
    EXEC sp_OASetProperty @crypt, 'EncodingMode', 'base64'

    -- Make sure we sign the utf-8 byte representation of the JSON string
    EXEC sp_OASetProperty @crypt, 'Charset', 'utf-8'

    DECLARE @sigBase64 nvarchar(4000)
    EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
    EXEC sp_OAMethod @crypt, 'SignStringENC', @sigBase64 OUT, @sTmp0
    EXEC sp_OAGetProperty @crypt, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @crypt, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @cmsOptions
        EXEC @hr = sp_OADestroy @jsonSigningAttrs
        EXEC @hr = sp_OADestroy @json
        RETURN
      END


    PRINT 'Base64 signature:'

    PRINT @sigBase64

    -- Add the signature to the JSON.
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'signatures[0].signatureType', 'I'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'signatures[0].value', @sigBase64


    PRINT 'JSON with signature added:'
    EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    EXEC @hr = sp_OADestroy @crypt
    EXEC @hr = sp_OADestroy @cert
    EXEC @hr = sp_OADestroy @cmsOptions
    EXEC @hr = sp_OADestroy @jsonSigningAttrs
    EXEC @hr = sp_OADestroy @json


END
GO