Java

FatturaPA XML Invoice Sign+Encrypt to P7M

See more Digital Signatures Examples

Demonstrates how to create a CAdES BES signed + encrypted invoice.xml.p7m for the Italian FatturaPA exchange system. 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 requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Crypt2 crypt = new Crypt2();

        // Use a digital certificate and private key from a PFX file (.pfx or .p12).
        String pfxPath = "qa_data/pfx/cert_test123.pfx";
        String pfxPassword = "test123";

        Cert cert = new Cert();
        try {
            cert.loadPfxFile(pfxPath, pfxPassword);

            // Provide the signing cert (with associated private key).
            crypt.setSigningCert(cert);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Indicate that SHA-256 should be used.
        crypt.setHashAlgorithm("sha256");

        // Specify the signed attributes to be included.
        // (This is what makes it CAdES-BES compliant.)
        JsonObject jsonSignedAttrs = new JsonObject();
        jsonSignedAttrs.updateInt("contentType", 1);
        jsonSignedAttrs.updateInt("signingTime", 1);
        jsonSignedAttrs.updateInt("messageDigest", 1);
        jsonSignedAttrs.updateInt("signingCertificateV2", 1);
        crypt.setSigningAttributes(jsonSignedAttrs.emit());

        String inFile = "qa_data/xml/IT01234567890_11002.xml";
        String sigFile = "qa_data/fatturapa/signed.p7m";

        // Create the CAdES-BES signature, which contains the original data.
        try {
            crypt.createP7M(inFile, sigFile);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Now we'll encrypt what was signed using FatturaPA's certificate (from a PEM file)
        Cert encryptCert = new Cert();
        try {
            encryptCert.loadFromFile("qa_data/certs/fatturapa_cert.pem");

            crypt.setCryptAlgorithm("pki");

            crypt.setEncryptCert(encryptCert);

            // Indicate the underlying bulk encryption algorithm to be used:
            crypt.setPkcs7CryptAlg("aes");
            crypt.setKeyLength(128);

            // There's one last option that could be set.  If is the RSA encryption encryption/padding scheme.
            // By default, RSAES_PKCS1-V1_5 is used.  If desired, the OaepPadding property could be set to true to
            // use RSAES_OAEP.  (We'll leave it set at the default value of false)
            crypt.setOaepPadding(false);

            // Everything is specified.  Encrypt the .p7m to create a new .p7m (which adds a layer of encryption around the opaque signature).
            // The output is PKCS7 in binary DER format.
            crypt.ckEncryptFile(sigFile, "qa_output/signed_and_encrypted.p7m");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Success.");
    }
}