(JavaScript) FatturaPA XML Invoice Sign+Encrypt to P7M

Demonstrates how to create a CAdES BES signed + encrypted invoice.xml.p7m for the Italian FatturaPA exchange system.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

var crypt = new CkCrypt2();

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

var cert = new CkCert();
success = cert.LoadPfxFile(pfxPath,pfxPassword);
if (success == false) {
    console.log(cert.LastErrorText);
    return;
}

// Provide the signing cert (with associated private key).
success = crypt.SetSigningCert(cert);
if (success == false) {
    console.log(crypt.LastErrorText);
    return;
}

// Indicate that SHA-256 should be used.
crypt.HashAlgorithm = "sha256";

// Specify the signed attributes to be included.
// (This is what makes it CAdES-BES compliant.)
var jsonSignedAttrs = new CkJsonObject();
jsonSignedAttrs.UpdateInt("contentType",1);
jsonSignedAttrs.UpdateInt("signingTime",1);
jsonSignedAttrs.UpdateInt("messageDigest",1);
jsonSignedAttrs.UpdateInt("signingCertificateV2",1);
crypt.SigningAttributes = jsonSignedAttrs.Emit();

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

// Create the CAdES-BES signature, which contains the original data.
success = crypt.CreateP7M(inFile,sigFile);
if (success == false) {
    console.log(crypt.LastErrorText);
    return;
}

// Now we'll encrypt what was signed using FatturaPA's certificate (from a PEM file)
var encryptCert = new CkCert();
success = encryptCert.LoadFromFile("qa_data/certs/fatturapa_cert.pem");
if (success == false) {
    console.log(encryptCert.LastErrorText);
    return;
}

crypt.CryptAlgorithm = "pki";

success = crypt.SetEncryptCert(encryptCert);
if (success == false) {
    console.log(crypt.LastErrorText);
    return;
}

// Indicate the underlying bulk encryption algorithm to be used:
crypt.Pkcs7CryptAlg = "aes";
crypt.KeyLength = 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.OaepPadding = 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.
success = crypt.CkEncryptFile(sigFile,"qa_output/signed_and_encrypted.p7m");
if (success == false) {
    console.log(crypt.LastErrorText);
    return;
}

console.log("Success.");