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(Visual FoxPro) CADES-BES Signature using ePass2003 TokenSee more Egypt ITIDA ExamplesDemonstrates 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.)
LOCAL loScmd LOCAL lcReaderName LOCAL lnSuccess LOCAL lnRetval LOCAL lcCertPart LOCAL lcPartValue LOCAL loCert LOCAL loCrypt LOCAL loCmsOptions LOCAL loJsonSigningAttrs LOCAL loJson LOCAL lcSigBase64 * 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') loScmd = CreateObject('Chilkat.ScMinidriver') * Reader names (smart card readers or USB tokens) can be discovered * via List Readers or Find Smart Cards lcReaderName = "FS USB Token 0" lnSuccess = loScmd.AcquireContext(lcReaderName) IF (lnSuccess = 0) THEN ? loScmd.LastErrorText RELEASE loScmd CANCEL ENDIF * If successful, the name of the currently inserted smart card is available: ? "Card name: " + loScmd.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 lnRetval = loScmd.PinAuthenticate("user","12345678") IF (lnRetval <> 0) THEN ? "PIN Authentication failed." ENDIF * 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 lcCertPart = "subjectCN" lcPartValue = "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') loCert = CreateObject('Chilkat.Cert') lnSuccess = loScmd.FindCert(lcCertPart,lcPartValue,loCert) IF (lnSuccess = 0) THEN ? "Failed to find the certificate." loScmd.DeleteContext() RELEASE loScmd RELEASE loCert CANCEL ENDIF ? "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') loCrypt = CreateObject('Chilkat.Crypt2') * Tell the crypt class to use the cert on the ePass2003 token. lnSuccess = loCrypt.SetSigningCert(loCert) IF (lnSuccess <> 1) THEN ? loCrypt.LastErrorText RELEASE loScmd RELEASE loCert RELEASE loCrypt CANCEL ENDIF * For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.JsonObject') loCmsOptions = CreateObject('Chilkat.JsonObject') * Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used. loCmsOptions.UpdateBool("DigestData",1) loCmsOptions.UpdateBool("OmitAlgorithmIdNull",1) * Indicate that we are passing normal JSON and we want Chilkat do automatically * do the ITIDA JSON canonicalization: loCmsOptions.UpdateBool("CanonicalizeITIDA",1) loCrypt.CmsOptions = loCmsOptions.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. loCrypt.CadesEnabled = 1 loCrypt.HashAlgorithm = "sha256" * For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.JsonObject') loJsonSigningAttrs = CreateObject('Chilkat.JsonObject') loJsonSigningAttrs.UpdateInt("contentType",1) loJsonSigningAttrs.UpdateInt("signingTime",1) loJsonSigningAttrs.UpdateInt("messageDigest",1) loJsonSigningAttrs.UpdateInt("signingCertificateV2",1) loCrypt.SigningAttributes = loJsonSigningAttrs.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: loCrypt.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') loJson = CreateObject('Chilkat.JsonObject') lnSuccess = loJson.LoadFile("qa_data/itida/sdk.invoicing.eta.gov.eg/files/one-doc.json") IF (lnSuccess = 0) THEN ? loJson.LastErrorText RELEASE loScmd RELEASE loCert RELEASE loCrypt RELEASE loCmsOptions RELEASE loJsonSigningAttrs RELEASE loJson CANCEL ENDIF loJson.EmitCompact = 0 * Create the CAdES-BES signature. loCrypt.EncodingMode = "base64" * Make sure we sign the utf-8 byte representation of the JSON string loCrypt.Charset = "utf-8" lcSigBase64 = loCrypt.SignStringENC(loJson.Emit()) IF (loCrypt.LastMethodSuccess = 0) THEN ? loCrypt.LastErrorText RELEASE loScmd RELEASE loCert RELEASE loCrypt RELEASE loCmsOptions RELEASE loJsonSigningAttrs RELEASE loJson CANCEL ENDIF ? "Base64 signature:" ? lcSigBase64 * Add the signature to the JSON. loJson.UpdateString("signatures[0].signatureType","I") loJson.UpdateString("signatures[0].value",lcSigBase64) ? "JSON with signature added:" ? loJson.Emit() * ------------------------------------------------------------------------------------------------------------ * Cleanup our ScMinidriver session... * When finished with operations that required authentication, you may if you wish, deauthenticate the session. lnSuccess = loScmd.PinDeauthenticate("user") IF (lnSuccess = 0) THEN ? loScmd.LastErrorText ENDIF * Delete the context when finished with the card. lnSuccess = loScmd.DeleteContext() IF (lnSuccess = 0) THEN ? loScmd.LastErrorText ENDIF RELEASE loScmd RELEASE loCert RELEASE loCrypt RELEASE loCmsOptions RELEASE loJsonSigningAttrs RELEASE loJson |
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