Rust

Download and Trust the DigiCert Global Root CA

See more Certificates Examples

Demonstrates how to download a root certificate and trust it. Rust

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

// In this example, the URLs for the DigiCert root CA certs are available at this web page:
// https://www.digicert.com/digicert-root-certificates.htm

// This example downloads the "DigiCert Global Root G3"
// Valid until: 15/Jan/2038
// Serial #: 05:55:56:BC:F2:5E:A4:35:35:C3:A4:0F:D5:AB:45:72
// Thumbprint: 7E04DE896A3E666D00E687D33FFAD93BE83D349E

let cert_url = "https://dl.cacerts.digicert.com/DigiCertGlobalRootG3.crt".to_string();

let http = chilkat::Http::new();
let bd_cert = chilkat::BinData::new();
if http.download_bd(&cert_url, &bd_cert).is_err() {
    println!("{}", http.last_error_text());
    return;
}

// Load it into a Chilkat cert object.
let cert = chilkat::Cert::new();
if cert.load_from_bd(&bd_cert).is_err() {
    println!("{}", cert.last_error_text());
    return;
}

// Examine the common name,serial, and thumbprint:
println!("CN: {}", cert.subject_cn());
println!("Serial: {}", cert.serial_number());
println!("Thumbprint: {}", cert.sha1_thumbprint());

// Output from the above:
// CN: DigiCert Global Root G3
// Serial: 055556BCF25EA43535C3A40FD5AB4572
// Thumbprint: 7E04DE896A3E666D00E687D33FFAD93BE83D349E

// If desired, the certificate can be saved to a local file so it does not need
// to be downloaded from the website every time.  
let cert_path = "qa_data/certs/DigiCertGlobalRootG3.crt".to_string();
let _ = bd_cert.write_file(&cert_path).is_ok();

// To load the cert from a file...
let _ = cert.load_from_file(&cert_path).is_ok();

// Do the following to add the cert to the collection of trusted roots
// for this application.  (Note:  The trust is not persisted.  Each time the
// application runs, it should load the cert (from whatever source, whether it is
// a file, a database,etc.) and do the following:
let troots = chilkat::TrustedRoots::new();

let _ = troots.add_cert(&cert);
let _ = troots.activate();

println!("{} is now trusted for this run of this application.", cert.subject_cn());