Rust

Verify XAdES with External File Reference

See more XML Digital Signatures Examples

Demonstrates how to validate an XML digital signature that contains a reference to an external file. (This is one way of doing it..) Rust

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

// Load the XAdES file to be validated..
let sb_xml = chilkat::StringBuilder::new();
if sb_xml.load_file("qa_data/xml_dsig_valid_samples/externalFile/test.pdf.XAdES", "utf-8").is_err() {
    println!("Failed to load XAdES input file.");
    return;
}

let validator = chilkat::XmlDSig::new();

// Specify a set of absolute or relative directory paths to be searched for any external file references.
// Directory paths are separated by semicolon chars.
validator.set_external_ref_dirs("qa_data/externalFiles;qa_data/xml_dsig_valid_samples/externalFile;c:/someOtherDir");

if validator.load_signature_sb(&sb_xml).is_err() {
    println!("{}", validator.last_error_text());
    return;
}

// Validate signatures as usual..
let mut i = 0;
while i < validator.num_signatures() {
    validator.set_selector(i);

    let valid = validator.verify_signature(true).is_ok();
    println!("Signature {} and all reference digests OK = {}", i + 1, valid);

    i = i + 1;
}