Rust

Convert Cert + Key to PEM and PFX

See more Certificates Examples

This example is based on the following question from a Chilkat customer:

We receive 2 files :

    MyCertificate.p7b
    MyCertificate-privatekey.pkey

We have to transform these certificate like this:

First convert it to PEM like this:

openssl pkcs7 -in MyCertificate.p7b -inform DER -out MyCertificate.pem -print_certs

Now we get MyCertificate.pem

Last step, we need to convert it to pfx file:

openssl pkcs12 -export -inkey moncertificat-privatekey.pkey  -in  moncertificat.pem -out moncertificat.pfx

Is there a way to make all these steps with Chilkat ?

I will be nice to include this directly in our software instead of askig the user to do it manualy.

Rust

let cert = chilkat::Cert::new();
let priv_key = chilkat::PrivateKey::new();

// Load any type of certificate (.cer, .p7b, .pem, etc.) by calling LoadFromFile.
if cert.load_from_file("qa_data/certs/sample_cert_a.cer").is_err() {
    println!("{}", cert.last_error_text());
    return;
}

// Load the private key.
// (The various privKey methods that load from a file will automatically detect
// the format.  It doesn't actually matter if you try to load a non-PKCS8 format private key
// by calling LoadPkcs8EncryptedFile -- internally Chilkat will detect the format and will load
// based on what it finds.)
if priv_key.load_pkcs8_encrypted_file("qa_data/certs/sample_key_a.pkcs8", "password").is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

// Write the cert as PEM.
let _ = cert.export_cert_pem_file("qa_output/cert.pem").is_ok();

// Or get the PEM string directly...
println!("{}", cert.export_cert_pem().unwrap_or_default());

// Associate the private key with the cert object.
if cert.set_private_key(&priv_key).is_err() {
    println!("{}", cert.last_error_text());
    return;
}

// Write the cert + private key to a .pfx file.
if cert.export_to_pfx_file("qa_data/myPfx.pfx", "password", true).is_err() {
    println!("{}", cert.last_error_text());
    return;
}

println!("Success.");