demo x509 builder usage

Signed-off-by: Arthur Gautier <baloo@superbaloo.net>

Author: baloo

Cargo.lock

@@ -1,2 +1,6 @@
 [workspace]
 members = ["cryptoki", "cryptoki-sys", "cryptoki-rustcrypto"]
+
+[patch.crates-io]
+# https://github.com/RustCrypto/formats/pull/1269
+spki = { git = "https://github.com/baloo/formats.git", branch = "baloo/spki/from_key" }

Cargo.toml

@@ -25,3 +25,4 @@ thiserror = "1.0"
 [dev-dependencies]
 serial_test = "0.5.1"
 testresult = "0.2.0"
+x509-cert = { version = "0.2.4", features = ["builder"] }

cryptoki-rustcrypto/Cargo.toml

@@ -0,0 +1,83 @@
+// Copyright 2023 Contributors to the Parsec project.
+// SPDX-License-Identifier: Apache-2.0
+
+mod common;
+
+use crate::common::USER_PIN;
+use common::init_pins;
+use cryptoki::{mechanism::Mechanism, object::Attribute, session::UserType, types::AuthPin};
+use cryptoki_rustcrypto::rsa::pss;
+use der::{pem::LineEnding, EncodePem};
+use serial_test::serial;
+use signature::Keypair;
+use spki::SubjectPublicKeyInfoOwned;
+use std::{str::FromStr, time::Duration};
+use testresult::TestResult;
+use x509_cert::{
+    builder::{Builder, CertificateBuilder, Profile},
+    name::Name,
+    serial_number::SerialNumber,
+    time::Validity,
+};
+
+#[test]
+#[serial]
+fn pss_create_ca() -> TestResult {
+    let (pkcs11, slot) = init_pins();
+
+    // open a session
+    let session = pkcs11.open_rw_session(slot)?;
+
+    // log in the session
+    session.login(UserType::User, Some(&AuthPin::new(USER_PIN.into())))?;
+
+    // get mechanism
+    let mechanism = Mechanism::RsaPkcsKeyPairGen;
+
+    let public_exponent: Vec<u8> = vec![0x01, 0x00, 0x01];
+    let modulus_bits = 1024;
+
+    let label = b"demo-signer";
+
+    // pub key template
+    let pub_key_template = vec![
+        Attribute::Token(true),
+        Attribute::Private(false),
+        Attribute::Label(label.to_vec()),
+        Attribute::PublicExponent(public_exponent),
+        Attribute::ModulusBits(modulus_bits.into()),
+    ];
+
+    // priv key template
+    let priv_key_template = vec![Attribute::Token(true), Attribute::Label(label.to_vec())];
+
+    // generate a key pair
+    let (public, private) =
+        session.generate_key_pair(&mechanism, &pub_key_template, &priv_key_template)?;
+
+    let signer = pss::Signer::<sha2::Sha256>::new(session, label).expect("Lookup keys from HSM");
+
+    let serial_number = SerialNumber::from(42u32);
+    let validity = Validity::from_now(Duration::new(5, 0)).unwrap();
+    let profile = Profile::Root;
+    let subject =
+        Name::from_str("CN=World domination corporation,O=World domination Inc,C=US").unwrap();
+    let pub_key = SubjectPublicKeyInfoOwned::from_key(signer.verifying_key()).unwrap();
+
+    let builder =
+        CertificateBuilder::new(profile, serial_number, validity, subject, pub_key, &signer)
+            .expect("Create certificate");
+
+    let certificate = builder.build().unwrap();
+
+    let pem = certificate.to_pem(LineEnding::LF).expect("generate pem");
+    println!("{}", pem);
+
+    let session = signer.into_session();
+
+    // delete keys
+    session.destroy_object(public)?;
+    session.destroy_object(private)?;
+
+    Ok(())
+}