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(PHP Extension) 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.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $crypt = new CkCrypt2(); $crypt->put_VerboseLogging(true); $cert = new CkCert(); $cert->put_VerboseLogging(true); // Set the smart card PIN, which will be needed for signing. $cert->put_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 != true) { print $cert->lastErrorText() . "\n"; exit; } // Tell the crypt class to use this cert. $success = $crypt->SetSigningCert($cert); if ($success != true) { print $crypt->lastErrorText() . "\n"; exit; } $cmsOptions = new CkJsonObject(); // Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used. $cmsOptions->UpdateBool('DigestData',true); $cmsOptions->UpdateBool('OmitAlgorithmIdNull',true); // Indicate that we are passing normal JSON and we want Chilkat do automatically // do the ITIDA JSON canonicalization: $cmsOptions->UpdateBool('CanonicalizeITIDA',true); $crypt->put_CmsOptions($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->put_CadesEnabled(true); $crypt->put_HashAlgorithm('sha256'); $jsonSigningAttrs = new CkJsonObject(); $jsonSigningAttrs->UpdateInt('contentType',1); $jsonSigningAttrs->UpdateInt('signingTime',1); $jsonSigningAttrs->UpdateInt('messageDigest',1); $jsonSigningAttrs->UpdateInt('signingCertificateV2',1); $crypt->put_SigningAttributes($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->put_IncludeCertChain(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, // } // $json = new CkJsonObject(); $success = $json->LoadFile('qa_data/itida/sdk.invoicing.eta.gov.eg/files/one-doc.json'); if ($success == false) { print $json->lastErrorText() . "\n"; exit; } $json->put_EmitCompact(false); // Create the CAdES-BES signature. $crypt->put_EncodingMode('base64'); // Make sure we sign the utf-8 byte representation of the JSON string $crypt->put_Charset('utf-8'); $sigBase64 = $crypt->signStringENC($json->emit()); if ($crypt->get_LastMethodSuccess() == false) { print $crypt->lastErrorText() . "\n"; exit; } print 'Base64 signature:' . "\n"; print $sigBase64 . "\n"; // Add the signature to the JSON. $json->UpdateString('signatures[0].signatureType','I'); $json->UpdateString('signatures[0].value',$sigBase64); print 'JSON with signature added:' . "\n"; print $json->emit() . "\n"; ?> |
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