Rust

Create CAdES-BES .p7m for FatturaPA XML Invoice

See more Digital Signatures Examples

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

Note: This example requires Chilkat v9.5.0.75.

Rust

// Note: Requires Chilkat v9.5.0.75 or greater.

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

let crypt = chilkat::Crypt2::new();

// Use a digital certificate and private key from a PFX file (.pfx or .p12).
let pfx_path = "qa_data/pfx/cert_test123.pfx".to_string();
let pfx_password = "test123".to_string();

let cert = chilkat::Cert::new();
if cert.load_pfx_file(&pfx_path, &pfx_password).is_err() {
    println!("{}", cert.last_error_text());
    return;
}

// Provide the signing cert (with associated private key).
if crypt.set_signing_cert(&cert).is_err() {
    println!("{}", crypt.last_error_text());
    return;
}

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

// Specify the signed attributes to be included.
// (This is what makes it CAdES-BES compliant.)
let json_signed_attrs = chilkat::JsonObject::new();
let _ = json_signed_attrs.update_int("contentType", 1);
let _ = json_signed_attrs.update_int("signingTime", 1);
let _ = json_signed_attrs.update_int("messageDigest", 1);
let _ = json_signed_attrs.update_int("signingCertificateV2", 1);
crypt.set_signing_attributes(&json_signed_attrs.emit().unwrap_or_default());

let in_file = "qa_data/xml/IT01234567890_11002.xml".to_string();
let sig_file = "qa_output/IT01234567890_11002.xml.p7m".to_string();

// Create the CAdES-BES signature, which contains the original data.
if crypt.create_p7_m(&in_file, &sig_file).is_err() {
    println!("{}", crypt.last_error_text());
    return;
}

println!("Success.");