Java

Create Egypt ITIDA CAdES-BES .p7s Signature (with strings in-memory)

See more Egypt ITIDA Examples

Demonstrates how to create a .p7s signature that fits Egypt's ITIDA requirements.

Note: This example requires Chilkat v9.5.0.75 or greater.

Chilkat2 Java

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();

        Cert cert = new Cert();

        // 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 component 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);
        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);

        // Make sure we sign the utf-8 byte representation of the JSON string
        crypt.setCharset("utf-8");

        // Create the CAdES-BES signature.
        String textToSign = "\"issuer\"\"address\"\"branchID\"\"0\"\"country\"\"EG\"\"regionCity...";

        crypt.setEncodingMode("base64");
        String sigBase64;
        try {
            sigBase64 = crypt.signStringENC(textToSign);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Base64 signature:");
        System.out.println(sigBase64);
    }
}