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(DataFlex) 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.)
Use ChilkatAx-win32.pkg Procedure Test Handle hoScmd String sReaderName Boolean iSuccess Integer iRetval String sCertPart String sPartValue Variant vCert Handle hoCert Handle hoCrypt Handle hoCmsOptions SigningAttrs Handle hoJsonSigningAttrs Handle hoJson String sSigBase64 String sTemp1 Boolean bTemp1 // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Get Create (RefClass(cComChilkatScMinidriver)) To hoScmd If (Not(IsComObjectCreated(hoScmd))) Begin Send CreateComObject of hoScmd End // Reader names (smart card readers or USB tokens) can be discovered // via List Readers or Find Smart Cards Move "FS USB Token 0" To sReaderName Get ComAcquireContext Of hoScmd sReaderName To iSuccess If (iSuccess = False) Begin Get ComLastErrorText Of hoScmd To sTemp1 Showln sTemp1 Procedure_Return End // If successful, the name of the currently inserted smart card is available: Get ComCardName Of hoScmd To sTemp1 Showln "Card name: " sTemp1 // If desired, perform regular PIN authentication with the smartcard. // For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example Get ComPinAuthenticate Of hoScmd "user" "12345678" To iRetval If (iRetval <> 0) Begin Showln "PIN Authentication failed." End // 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 Move "subjectCN" To sCertPart Move "Matt" To sPartValue // 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 Get Create (RefClass(cComChilkatCert)) To hoCert If (Not(IsComObjectCreated(hoCert))) Begin Send CreateComObject of hoCert End Get pvComObject of hoCert to vCert Get ComFindCert Of hoScmd sCertPart sPartValue vCert To iSuccess If (iSuccess = False) Begin Showln "Failed to find the certificate." Get ComDeleteContext Of hoScmd To iSuccess Procedure_Return End Showln "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.. Get Create (RefClass(cComChilkatCrypt2)) To hoCrypt If (Not(IsComObjectCreated(hoCrypt))) Begin Send CreateComObject of hoCrypt End // Tell the crypt class to use the cert on the ePass2003 token. Get pvComObject of hoCert to vCert Get ComSetSigningCert Of hoCrypt vCert To iSuccess If (iSuccess <> True) Begin Get ComLastErrorText Of hoCrypt To sTemp1 Showln sTemp1 Procedure_Return End Get Create (RefClass(cComChilkatJsonObject)) To hoCmsOptions If (Not(IsComObjectCreated(hoCmsOptions))) Begin Send CreateComObject of hoCmsOptions End // Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used. Get ComUpdateBool Of hoCmsOptions "DigestData" True To iSuccess Get ComUpdateBool Of hoCmsOptions "OmitAlgorithmIdNull" True To iSuccess // Indicate that we are passing normal JSON and we want Chilkat do automatically // do the ITIDA JSON canonicalization: Get ComUpdateBool Of hoCmsOptions "CanonicalizeITIDA" True To iSuccess Get ComEmit Of hoCmsOptions To sTemp1 Set ComCmsOptions Of hoCrypt To sTemp1 // The CadesEnabled property applies to all methods that create CMS/PKCS7 signatures. // To create a CAdES-BES signature, set this property equal to true. Set ComCadesEnabled Of hoCrypt To True Set ComHashAlgorithm Of hoCrypt To "sha256" Get Create (RefClass(cComChilkatJsonObject)) To hoJsonSigningAttrs If (Not(IsComObjectCreated(hoJsonSigningAttrs))) Begin Send CreateComObject of hoJsonSigningAttrs End Get ComUpdateInt Of hoJsonSigningAttrs "contentType" 1 To iSuccess Get ComUpdateInt Of hoJsonSigningAttrs "signingTime" 1 To iSuccess Get ComUpdateInt Of hoJsonSigningAttrs "messageDigest" 1 To iSuccess Get ComUpdateInt Of hoJsonSigningAttrs "signingCertificateV2" 1 To iSuccess Get ComEmit Of hoJsonSigningAttrs To sTemp1 Set ComSigningAttributes Of hoCrypt To sTemp1 // 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: Set ComIncludeCertChain Of hoCrypt To False // 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, // } // Get Create (RefClass(cComChilkatJsonObject)) To hoJson If (Not(IsComObjectCreated(hoJson))) Begin Send CreateComObject of hoJson End Get ComLoadFile Of hoJson "qa_data/itida/sdk.invoicing.eta.gov.eg/files/one-doc.json" To iSuccess If (iSuccess = False) Begin Get ComLastErrorText Of hoJson To sTemp1 Showln sTemp1 Procedure_Return End Set ComEmitCompact Of hoJson To False // Create the CAdES-BES signature. Set ComEncodingMode Of hoCrypt To "base64" // Make sure we sign the utf-8 byte representation of the JSON string Set ComCharset Of hoCrypt To "utf-8" Get ComEmit Of hoJson To sTemp1 Get ComSignStringENC Of hoCrypt sTemp1 To sSigBase64 Get ComLastMethodSuccess Of hoCrypt To bTemp1 If (bTemp1 = False) Begin Get ComLastErrorText Of hoCrypt To sTemp1 Showln sTemp1 Procedure_Return End Showln "Base64 signature:" Showln sSigBase64 // Add the signature to the JSON. Get ComUpdateString Of hoJson "signatures[0].signatureType" "I" To iSuccess Get ComUpdateString Of hoJson "signatures[0].value" sSigBase64 To iSuccess Showln "JSON with signature added:" Get ComEmit Of hoJson To sTemp1 Showln sTemp1 // ------------------------------------------------------------------------------------------------------------ // Cleanup our ScMinidriver session... // When finished with operations that required authentication, you may if you wish, deauthenticate the session. Get ComPinDeauthenticate Of hoScmd "user" To iSuccess If (iSuccess = False) Begin Get ComLastErrorText Of hoScmd To sTemp1 Showln sTemp1 End // Delete the context when finished with the card. Get ComDeleteContext Of hoScmd To iSuccess If (iSuccess = False) Begin Get ComLastErrorText Of hoScmd To sTemp1 Showln sTemp1 End End_Procedure |
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