Java
Chilkat2 Java
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.
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import com.chilkatsoft.chilkat2.Cert;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Crypt2;
import com.chilkatsoft.chilkat2.JsonObject;
public class ChilkatExample {
public static void main(String[] args) {
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
Crypt2 crypt = new Crypt2();
crypt.setVerboseLogging(true);
Cert cert = new Cert();
cert.setVerboseLogging(true);
// Set the smart card PIN, which will be needed for signing.
cert.setSmartCardPin("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..
try {
cert.loadFromSmartcard("");
// Tell the crypt class to use this cert.
crypt.setSigningCert(cert);
} catch (ChilkatException e) {
System.out.println(e.getLastErrorText());
return;
}
JsonObject cmsOptions = new JsonObject();
// 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.setCmsOptions(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.setCadesEnabled(true);
crypt.setHashAlgorithm("sha256");
JsonObject jsonSigningAttrs = new JsonObject();
jsonSigningAttrs.updateInt("contentType", 1);
jsonSigningAttrs.updateInt("signingTime", 1);
jsonSigningAttrs.updateInt("messageDigest", 1);
jsonSigningAttrs.updateInt("signingCertificateV2", 1);
crypt.setSigningAttributes(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.setIncludeCertChain(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,
// }
//
JsonObject json = new JsonObject();
String sigBase64;
try {
json.loadFile("qa_data/itida/sdk.invoicing.eta.gov.eg/files/one-doc.json");
json.setEmitCompact(false);
// Create the CAdES-BES signature.
crypt.setEncodingMode("base64");
// Make sure we sign the utf-8 byte representation of the JSON string
crypt.setCharset("utf-8");
sigBase64 = crypt.signStringENC(json.emit());
} catch (ChilkatException e) {
System.out.println(e.getLastErrorText());
return;
}
System.out.println("Base64 signature:");
System.out.println(sigBase64);
// Add the signature to the JSON.
json.updateString("signatures[0].signatureType", "I");
json.updateString("signatures[0].value", sigBase64);
System.out.println("JSON with signature added:");
System.out.println(json.emit());
}
}