Files
firewall/core/tests/tpm.rs
ian-at-strixandIan Graham Martinez 7cafa16cc4 Hold the CA key in the TPM on Windows (#9)
* Hold the CA key in the TPM on Windows

A non-exportable machine key in the TPM, or in software where there is
none, signs as the Secure Enclave key does on macOS.

* Require the TPM for the Windows CA key

A failure to open the TPM fell back to a software key, which minted a new CA
and kept it for good. Fail instead, as macOS does without a Secure Enclave.

* Use the windows crate for the TPM key

---------

Co-authored-by: Ian Graham Martinez <[email protected]>
2026-10-22 10:53:51 -04:00

22 lines
752 B
Rust

#![cfg(windows)]
use firewall::mitm::CertificateAuthority;
use firewall::os::windows::CaKey;
use rcgen::PublicKeyData;
/// Skipped on machines without a TPM.
#[test]
fn key_signs_a_verifiable_ca() {
let key = match CaKey::create_test_key() {
Ok(key) => key,
Err(error) => return eprintln!("skipping, no TPM key: {error}"),
};
let ca = CertificateAuthority::generate(&["registry.npmjs.org"], &key);
let spki = key.subject_public_key_info();
key.delete_from_tpm().expect("delete the test key");
let ca = ca.expect("mint a ca");
let public = ca.crt.public_key().expect("ca public key");
assert!(ca.crt.verify(&public).expect("verify the ca"));
assert_eq!(public.public_key_to_der().unwrap(), spki);
}